Comparison of basic characteristics AMPs

Name	Max Voltage, dBV					Max Current, dB(mA)				Impedance , ohm	Reports
	Linear Mode	Optimal Mode	Hard Mode	Maximum mode	0 dBFS	Linear Mode	Optimal Mode	Hard Mode	Maximum mode
▲ ▼	▲ ▼					▲ ▼				▲ ▼
SMSL SP200 Hi Balanced Out	20.13	20.13	20.13	20.13	20.13	55.19	55.19	55.19	55.19	0.20
SMSL SP200 Hi Gain Single-ended Out	19.22	20.22	20.22	20.22	20.22	55.09	55.09	55.09	55.09	0.14
SMSL SP400 Single-ended Out	18.09	18.09	18.09	18.09	18.09	54.02	54.02	54.02	54.02	0.19
SMSL SH-9 Single-ended Out	16.65	16.65	16.65	16.65	16.65	52.59	52.59	52.59	52.59	0.16
SMSL SH-9 Balanced Out	16.55	16.55	16.55	16.55	16.55	52.45	52.45	52.45	52.45	0.11
Topping L50	18.16	19.16	19.16	19.16	19.16	52.37	53.37	53.37	53.37	0.06
MyST DAC 1866OCU V.2	17.64	17.64	17.64	17.64	17.64	51.02	51.02	51.02	51.02	3.17
DIY HeadAMP lakkarius	17.39	18.39	18.39	19.39	19.39	50.21	53.20	53.20	53.20	2.21
SMSL SP400 Balanced Out	23.92	23.92	23.92	23.92	23.92	50.14	54.19	51.83	51.83	0.26
RME ADI-2-4 Pro SE Single-Ended Out	17.69	17.69	17.69	17.69	17.69	48.35	48.97	48.97	48.97	0.18
DIY Beta 22	12.63	12.63	12.63	12.63	12.63	47.84	48.84	48.84	48.84	0.18
DAART Aquila II Balanced Out	23.14	23.14	23.14	23.14	23.14	47.82	48.05	48.05	48.05	2.16
DIY Monster Zen	13.76	13.76	13.76	13.76	13.76	47.79	48.79	48.79	48.79	1.90
SMSL sAp-9 Balanced Out	24.14	32.13	32.13	32.99	32.99	47.73	55.72	55.72	56.58	50.35
RME ADI-2 DAC FS 6.3 Hi Gain	19.27	19.27	19.27	19.27	19.27	47.69	47.69	47.69	47.69	0.23
HiFiMan EF 400 Balanced Out	23.33	23.33	23.33	23.33	26.40	47.47	47.47	47.47	47.47	9.75
iFi Micro iDSD Black Label Turbo	19.00	19.00	19.00	19.00	28.90	47.05	47.05	49.05	49.05	0.16
HiFiMan HM-801 SM SYMMcard 7.2	11.91	11.91	11.91	11.91	11.91	46.69	46.69	46.69	46.69	2.39
iFi iDSD Diablo Turbo Mode Single-ended Out	12.61	18.61	18.61	18.61	22.86	46.64	49.02	49.02	49.02	0.14
Violectric HPA V281 Single-ended Out	24.46	24.46	24.46	24.46	24.46	46.12	46.12	46.12	46.12	0.24
Topping DX7 Pro Hi Gain Balanced Out	21.12	21.12	21.12	21.12	21.12	46.01	46.01	46.01	46.01	9.40
Hiby RS8 Class AB Turbo Balanced Out	13.17	13.17	13.17	13.17	13.17	45.84	45.84	45.84	45.84	0.70
Hiby RS8 Class A Turbo Balanced Out	13.16	13.16	13.16	13.16	13.16	45.84	45.84	45.84	45.84	0.70
Violectric HPA V200	24.43	24.43	24.43	24.43	24.43	45.46	46.46	46.46	46.46	0.10
Singxer SA-1	22.63	22.63	22.63	22.63	22.63	45.46	58.00	58.00	58.00	1.25
Violectric HPA V220	21.84	24.83	24.83	24.83	24.83	45.43	46.42	46.76	47.42	0.20
Topping DX7 Pro Low Gain Balanced Out	15.39	15.39	15.39	15.39	15.39	45.24	45.79	45.79	45.79	9.59
DAART Aquila II Single-ended Out	17.49	17.49	17.49	17.49	17.49	45.04	49.37	49.37	49.37	1.13
QLS Quloos QA390 Super Hi - Hi Balanced Out	22.53	25.53	25.53	25.53	25.53	44.76	46.01	46.01	46.01	0.36
S-Audio Systems Focus V2	11.63	12.51	12.51	12.51	12.51	44.74	45.69	45.69	45.69	0.21
OPPO HA-1 Balanced Out	24.46	24.46	24.46	24.46	24.46	44.51	49.01	49.26	49.26	0.33
Topping EX5 Hi Gain	16.06	16.06	16.06	16.06	16.06	44.35	44.35	44.35	44.35	0.08
Lynx Audio HA-61	19.01	20.01	20.01	20.01	20.01	44.34	53.88	53.88	53.88	2.16
KEF Bluetooth Receiver Motion One	8.59	8.59	8.59	8.59	8.59	44.03	45.03	45.03	45.03	1.61
HiFiMan EF 400 Single-ended Out	17.18	17.18	17.18	17.18	20.00	43.76	47.81	48.66	48.66	4.90
Musatoff HA-9 Low Gain	7.82	7.82	7.82	7.82	7.82	43.74	43.74	43.74	43.74	0.21
Hiby RS6 Balanced Out	13.61	13.61	13.61	13.61	13.61	43.65	43.65	43.65	43.65	0.73
Hiby RS8 Class AB Balanced Out	11.18	11.18	11.18	11.18	11.18	43.34	43.34	43.34	43.34	0.69
iBasso DX240 AMP1 Mk3 Balanced Out	15.42	15.42	15.42	15.42	15.42	43.32	45.32	45.32	45.32	0.55
Hiby RS6 Single-ended Out	7.62	7.62	7.62	7.62	7.62	43.23	43.23	43.23	43.23	0.59
Topping DX7 Pro Hi Gain Single-ended Out	15.46	15.46	15.46	15.46	15.46	42.90	47.20	47.20	47.20	4.45
Monster Audio MA-9 Alexmod Edition	6.99	6.99	6.99	6.99	6.99	42.87	42.87	42.87	42.87	0.31
Oriolus DP100 Single-ended Out	7.96	7.96	7.96	7.96	7.96	42.86	42.86	42.86	42.86	0.10
Hiby RS8 Class AB Turbo Single-ended Out	9.19	9.19	9.19	9.19	9.19	42.82	42.82	42.82	42.82	0.65
Hiby RS8 Class A Turbo Single-ended Out	9.19	9.19	9.19	9.19	9.19	42.82	42.82	42.82	42.82	0.65
Hiby RS8 Class A Balanced Out	11.18	11.18	11.18	11.18	11.18	42.77	43.34	43.34	43.34	0.70
E1DA 9038SG3	10.17	10.17	10.17	10.17	10.17	42.60	43.59	43.59	43.59	0.19
Musatoff HA-9 Hi Gain	19.84	19.84	19.84	20.84	20.84	42.52	54.87	54.87	54.87	0.21
iBasso DX240 AMP1 Mk3 Single-ended Out	9.38	9.38	9.38	9.38	9.38	42.24	44.24	44.24	44.24	0.29
Oriolus DPS-L2 Single-ended Out	10.77	10.77	10.77	10.77	10.77	42.21	42.21	42.21	42.21	0.29
Topping DX7 Pro Low Gain Single-ended Out	9.37	9.37	9.37	9.37	9.37	42.11	43.11	43.11	43.11	4.57
xDuoo XD-05 Basic Mid Gain	11.15	11.15	11.15	11.15	12.40	41.85	41.85	41.85	41.85	2.27
xDuoo XD-05 Basic Hi Gain	11.15	11.15	11.15	11.15	22.10	41.85	41.85	41.85	41.85	2.27
Oriolus DPS-L2 Balanced Out	10.78	10.78	10.78	10.78	10.78	41.43	42.43	42.43	42.43	1.68
Violectric HPA V90	25.88	25.88	25.88	25.88	25.88	41.27	42.59	42.92	42.92	0.26
Hiby RS8 Class AB Single-ended Out	7.16	7.16	7.16	7.16	7.16	40.83	40.83	40.83	40.83	0.64
Hiby RS8 Class A Single-ended Out	7.16	7.16	7.16	7.16	7.16	40.83	40.83	40.83	40.83	0.64
Pro-Ject Head Box DS2 B 18 High Gain Balanced Out	24.10	24.10	24.10	24.10	24.10	40.63	32.13	43.40	43.40	13.17
Pro-Ject Head Box DS2 B 18 Mid Gain Balanced Out	24.10	24.10	24.10	24.10	24.10	40.63	32.13	43.40	43.40	42.70
Pro-Ject Head Box DS2 B 18 Low Gain Balanced Out	24.10	24.10	24.10	24.10	24.10	40.63	32.13	43.40	43.40	15.80
iBasso DX160 Hi Gain Balanced Out	13.14	16.14	16.14	16.14	16.14	40.60	41.60	41.60	41.60	1.30
OPPO HA-1 Single-ended Out	16.69	16.69	16.69	16.69	16.69	40.54	43.21	44.55	46.88	0.42
DAART Canary II	16.85	16.85	16.85	16.85	16.85	40.54	47.02	47.02	47.02	2.31
xDuoo X20 Single-ended Out	4.32	9.32	9.32	9.32	9.32	40.30	44.30	44.30	44.30	0.12
Xuelin iHiFi 812 V2	9.61	9.61	9.61	9.61	9.61	40.25	40.25	40.25	40.25	10.32
Creative Sound Blaster X7 LE Hi Gain	14.66	15.66	15.66	15.66	15.66	40.20	46.08	46.08	46.08	0.78
FiiO X7 II Single-ended Out	6.98	6.98	6.98	6.98	6.98	40.05	40.05	40.05	40.05	1.28
Musatoff HD-15 Low	6.48	6.48	6.48	6.48	6.48	39.90	41.90	41.90	41.90	1.07
iFi iDSD Diablo Eco Mode Single-ended Out	3.99	4.99	4.99	4.99	4.99	39.84	40.84	40.84	40.84	0.14
iBasso DX150 AMP6 Balanced Out	12.45	13.45	13.45	13.45	13.45	39.74	39.74	39.74	40.74	0.67
Luxury & Precision P6 Pro Single-ended Out	7.70	7.70	7.70	7.70	7.70	39.39	39.39	39.39	39.39	0.25
Audinst HUD-DX1 Hi Gain (Default Power)	14.30	14.30	14.30	14.30	14.30	39.25	45.86	45.86	46.86	1.99
SMSL sAp II	12.67	15.67	15.67	15.67	15.67	39.24	46.48	46.48	46.48	10.13
Nu Force Icon HD	12.46	17.45	17.45	17.45	17.45	39.20	44.04	44.04	44.44	10.14
iFi iDSD Diablo Normal Mode Single-ended Out	5.01	14.01	14.01	14.01	14.00	39.12	47.12	48.12	48.12	0.14
Luxury & Precision P6 Pro Balanced Out	11.75	11.75	11.75	11.75	11.75	39.00	39.00	39.00	39.00	0.62
xDuoo XD-05 Basic Low Gain	9.94	9.94	9.94	9.94	9.94	38.99	42.11	42.11	42.11	2.27
iBasso DX220 Max Hi Gain Balanced Out	18.58	18.58	18.58	18.58	18.58	38.98	50.20	50.20	50.20	2.98
Chord Hugo TT	11.15	11.15	11.15	12.15	12.15	38.94	43.09	44.09	45.09	0.20
iBasso DX120 Balanced Out	10.97	10.97	10.97	10.97	10.97	38.89	39.89	39.89	39.89	1.09
Burson Audio Conductor 3X Reference Hi Level Single-ended Out	9.43	21.43	21.43	21.43	21.42	38.86	51.40	54.20	54.20	0.52
Musatoff HD-15 Hi	20.01	21.01	21.01	21.01	21.01	38.84	44.87	53.18	54.18	1.11
iFi iDSD Diablo Turbo Mode Balanced Out	18.53	24.53	24.53	24.53	29.72	38.71	40.11	40.11	40.11	0.34
EVGA Nu Audio	13.50	17.51	17.51	17.51	17.51	38.57	42.57	42.57	43.24	0.29
Violectric HPA V281 Balanced Out	30.87	30.87	30.87	30.87	30.87	38.46	46.73	46.73	46.73	0.35
iBasso DX160 Hi Gain Single-ended Out	8.10	9.10	9.10	10.10	10.10	38.42	40.42	40.42	40.42	0.46
QLS Quloos QA390 Hi - Hi Balanced Out	18.21	18.21	18.21	18.21	18.21	38.39	40.89	40.89	40.89	4.02
iFi Micro iDSD Black Label Eco	6.63	6.63	6.63	6.63	6.63	38.35	40.93	40.93	41.93	0.15
FiiO X5-III Single-ended Out	3.81	8.81	8.81	8.81	8.81	38.25	44.25	44.25	44.25	1.01
MyST PortaDAC 1866OCUB v.3	8.67	8.67	8.67	8.67	8.67	38.24	39.20	39.20	39.20	9.98
xDuoo XD 05 Pro Balanced Out Turbo	23.33	23.33	23.33	23.33	23.33	38.21	44.82	44.82	44.82	0.33
Hiby R5 II Class A Mode On Single-ended Out	6.91	6.91	6.91	6.91	6.91	38.19	39.18	39.18	39.18	0.42
ASUS STRIX RAID DLX Hi Gain	15.45	15.45	15.45	15.45	15.45	38.10	44.76	44.76	44.76	14.16
ASUS Essence One Muses Edition	15.57	16.57	16.57	16.57	16.57	38.08	44.27	44.27	44.27	10.12
xDuoo X20 Balanced Out	10.30	10.30	10.30	10.30	10.30	38.04	39.74	39.74	39.74	1.04
Audinst HUD-DX1 Low Gain (Default Power)	14.30	14.30	14.30	14.30	14.30	37.89	45.78	46.78	46.78	1.99
Cayin N6 MK2 (E02) Hi Gain	12.02	12.02	12.02	13.02	13.02	37.88	46.12	46.12	46.12	1.95
Lotoo PAW 6000 Balanced Out	9.80	9.80	9.80	9.80	9.80	37.87	38.37	38.37	38.37	1.73
FiiO M15 Balanced Out	3.60	18.60	18.60	18.60	19.92	37.87	43.71	43.71	43.71	2.11
Burson Audio Conductor 3X Reference Hi Level Balanced Out	6.71	27.71	27.71	27.71	27.71	37.85	39.30	55.79	56.11	0.98
Creative Sound BlasterX AE-5 HP Out	14.46	14.46	14.46	14.46	14.46	37.81	41.88	41.88	41.88	1.11
QLS Quloos QA390 Super Hi - Hi Single-ended Out	17.55	19.55	19.55	19.55	19.55	37.74	40.49	50.12	50.12	4.06
FiiO X7 AM1	5.10	5.10	5.10	5.10	5.10	37.71	41.06	41.06	41.06	0.14
FiiO X5-III Balanced Out	8.76	8.76	8.76	8.76	8.76	37.46	43.69	43.69	43.69	2.04
Hiby RS2 Balanced Out	10.39	10.39	10.39	10.39	10.39	37.43	37.43	37.43	37.43	0.66
Shanling M3s Single-ended Out	5.22	5.22	5.22	5.22	5.22	37.24	41.12	41.12	41.12	0.24
Erzetich Perfidus	15.86	16.86	16.86	17.85	17.85	37.20	38.19	38.19	39.14	71.76
Burson Audio Conductor 3? Performance Balanced Out	12.65	24.65	24.65	24.65	24.65	37.10	53.80	54.79	55.27	0.74
FiiO X3 III Hi Gain Single-ended Out	6.60	7.60	7.60	7.60	7.60	37.04	37.04	37.04	37.04	1.00
xDuoo X3 Rockbox	1.07	8.06	8.06	8.06	8.06	37.00	39.60	39.60	39.60	0.11
GoVibe Porta Tube+ C4 Op-Amp Mod	3.89	6.82	6.82	6.82	6.82	36.97	41.76	41.76	41.76	0.03
Cayin N3 Pro Balanced Out	15.16	15.16	15.16	15.16	15.16	36.96	46.90	46.90	46.90	1.45
Colorful Colorfly C4 Pro Jack 6.3	0.95	4.95	4.95	4.95	4.95	36.77	40.76	40.76	40.76	1.20
FiiO X3 III Low Gain Single-ended Out	1.51	1.51	1.51	1.51	1.51	36.73	36.73	36.73	36.73	1.00
xDuoo X3 Default	-2.27	7.72	7.72	7.72	7.72	36.70	39.69	39.69	39.69	0.10
Hiby RS2 Single-ended Out	4.36	4.36	4.36	4.36	4.36	36.68	38.02	38.02	38.02	0.62
HiFiMan HM-601 MM4	6.24	6.24	6.24	6.24	6.24	36.65	37.15	37.15	37.15	1.12
iBasso DX 170 Single-ended Out	10.14	10.14	10.14	10.14	10.14	36.63	36.63	36.63	40.17	0.30
Burson Audio Conductor 3? Performance Single-ended Out	9.73	18.73	18.73	18.73	18.73	36.60	52.78	52.78	53.78	0.18
Cayin N5 MK2 Balanced Out	0.89	9.89	9.89	9.89	9.89	36.57	37.49	37.49	37.49	0.39
Hiby R5 II Class A Mode On Balanced Out	11.96	11.96	11.96	11.96	11.96	36.54	41.92	41.92	41.92	0.65
Luxury & Precision L3 Pro DSD Single-ended Out	1.55	1.55	1.55	1.55	1.55	36.38	36.38	36.38	36.38	2.32
iFi Pro iDSD Solid-State Hi Gain Single-ended Out	10.37	10.37	11.35	11.35	11.35	36.31	45.09	46.08	46.08	2.51
FiiO X5-III Turbo Mode Balanced Out	14.07	14.07	14.07	14.07	14.07	36.27	45.91	45.91	45.91	2.20
Kennerton Atlas Robitron	7.10	9.84	9.84	9.84	9.84	36.20	40.55	40.55	40.55	8.69
iBasso DX 170 Balanced Out	15.17	16.17	16.17	16.17	16.17	36.20	36.42	40.19	40.19	0.59
Lotoo PAW 6000 Single-ended Out	5.29	8.29	8.29	8.29	8.29	36.16	38.51	38.51	38.51	0.50
iBasso DX150 AMP6 Single-ended Out	7.42	7.42	7.42	7.42	7.42	35.98	36.65	36.65	39.25	0.33
ASUS Essence One	16.57	16.57	16.57	16.57	16.57	35.94	44.27	44.27	44.27	10.11
Shanling M3s Balanced Out	8.24	8.24	8.24	8.24	8.24	35.93	44.04	44.04	44.04	0.42
iBasso DX120 Single-ended Out	4.95	4.95	4.95	4.95	4.95	35.84	39.70	39.70	40.70	0.44
FiiO K5 Pro Mid Gain	0.29	9.28	12.28	12.28	12.28	35.81	41.49	46.79	46.79	1.01
FiiO K5 Low Gain	5.11	5.11	5.11	5.11	5.11	35.77	41.27	41.27	41.27	0.08
ASUS STRIX RAID DLX Mid Gain	9.47	9.47	9.47	9.47	9.47	35.66	41.09	41.09	41.09	10.28
ASUS STRIX RAID DLX Low Gain	4.04	4.04	4.04	4.04	4.04	35.66	35.66	35.66	35.66	10.34
Kennerton Atlas EVGA Nu Audio	6.14	8.99	8.99	8.99	8.99	35.62	40.04	40.04	40.04	8.63
FiiO K5 Pro Hi Gain	4.01	13.00	13.00	16.00	16.00	35.51	48.49	48.49	50.48	1.04
ASUS ROG Xonar Phoebus	15.38	15.38	15.38	16.38	16.38	35.50	46.93	46.93	46.93	10.53
iBasso DC03	6.00	6.00	6.00	6.00	6.00	35.42	35.79	35.79	35.79	0.33
ASUS Essence One MKII Muses Edition	16.64	16.64	16.64	16.64	16.64	35.02	44.33	44.33	44.33	10.17
xDuoo XD05 Bal Boost On Hi Gain Single-ended Out	14.77	14.77	14.77	14.77	15.00	34.84	40.92	46.71	46.71	0.15
Cayin HA-1AMK2 for 30-60 ohm	11.55	23.55	25.56	25.56	25.56	34.71	41.40	42.73	44.51	57.50
Dared EF-99 Low Gain	3.23	5.20	5.20	6.16	6.16	34.66	38.82	38.82	38.82	2.82
Creative Sound Blaster E5	9.75	14.75	14.75	14.75	14.78	34.65	34.65	34.65	34.65	2.40
iFi Pro iDSD Tube+ Hi Gain Single-ended Out	11.78	11.78	12.77	12.77	12.77	34.57	46.35	47.31	47.31	2.61
iFi Pro iDSD Tube+ Hi Gain Balanced Out	18.61	18.61	18.61	19.61	19.61	34.39	46.11	46.11	46.11	2.95
iFi ZEN CAN Signature 6XX (+18 dB) Balanced Out	19.62	22.62	22.62	22.62	22.62	34.25	37.97	37.97	37.97	0.55
ASUS STRIX RAID PRO Hi Gain	15.41	15.41	15.41	15.41	15.41	34.16	34.16	34.16	34.16	98.73
ASUS Essence ONE MKII Hi Gain	16.65	16.65	16.65	16.65	16.65	34.01	44.34	44.34	44.34	10.17
FiiO X3 III Low Gain Balanced Out	-1.39	2.61	2.61	2.61	2.61	33.95	36.95	36.95	36.95	1.00
Cayin N5 MK2 Single-ended Out	-1.22	7.78	7.78	7.78	7.78	33.92	37.84	37.84	37.84	0.63
iFi iDSD Diablo Normal Mode Balanced Out	10.94	19.94	19.94	19.94	20.12	33.85	42.85	42.85	42.85	0.34
FiiO K5 Mid Gain	12.40	12.40	12.40	12.40	12.40	33.74	48.42	48.42	48.42	0.04
TempoTec V1-A	-0.09	-0.09	-0.09	-0.09	-0.09	33.67	33.67	33.67	33.67	0.54
iFi ZEN CAN Signature 6XX (+18 dB) Single-ended Out	1.76	16.76	16.76	16.76	16.76	33.34	46.85	47.24	47.24	0.35
Cary Audio HH-1	12.89	17.88	18.88	18.88	18.88	33.30	35.26	35.64	35.83	10.55
iBasso DX200 AMP1 Single-ended Out	-2.53	9.47	9.47	9.47	9.47	33.27	44.27	44.27	44.27	0.41
ASUS Essence 3 Single-ended Out	14.73	14.73	15.73	15.73	15.73	33.23	40.66	43.27	43.27	10.69
Lisk Audio UX3-MOD3	11.86	11.86	11.86	11.86	11.86	33.13	45.33	45.33	45.33	0.12
iBasso DX200 AMP1 Balanced Out	-2.48	15.52	15.52	15.52	15.52	33.11	44.72	44.72	44.72	0.76
Cayin HA-1AMK2 for 8-32 ohm	6.84	15.84	20.85	20.85	20.85	33.07	42.92	45.81	46.75	23.66
FiiO X5	9.18	9.18	9.18	9.18	9.18	33.00	42.06	42.06	42.06	0.22
iFi iDSD Diablo Eco Mode Balanced Out	9.03	11.03	11.03	11.03	12.36	32.93	44.02	44.02	44.02	0.31
Creative SXFI AMP PC	7.30	7.30	7.30	8.30	8.30	32.87	37.41	38.08	38.08	0.16
Cayin HA-1AMK2 for 60-150 ohm	13.83	23.84	28.85	27.84	27.84	32.87	41.03	41.88	43.07	98.20
iFi Pro iDSD Solid-State Hi Gain Balanced Out	17.32	17.32	17.32	18.32	18.32	32.64	47.52	47.52	47.51	2.69
ASUS Essence ONE MKII Low Gain	5.21	5.21	5.21	5.21	5.21	32.59	36.87	36.87	36.87	10.21
Levz HA-S-029	18.55	19.54	19.54	20.54	20.54	32.57	34.72	35.29	35.74	12.34
FiiO M15 Single-ended Out	-1.92	13.08	13.08	13.08	13.08	32.49	44.49	44.49	44.49	1.07
iBasso DX220 Max Hi Gain Single-ended Out	12.86	12.86	12.86	12.86	12.86	32.47	47.19	47.19	47.19	1.35
FiiO K5 Pro Low Gain	-3.11	2.89	5.89	5.89	5.89	32.40	38.40	41.40	41.40	1.01
iFi Micro iDSD Black Label Mid	12.26	12.26	13.26	13.26	15.53	32.39	45.64	46.64	46.64	0.14
Aune T1 Max	17.08	17.08	17.08	17.08	17.08	32.34	42.49	44.69	44.69	10.25
Shanling M2s	5.24	6.24	6.24	6.24	6.24	32.34	38.94	38.94	38.94	4.62
ASUS Essence One Mod V	15.49	15.49	15.49	16.49	16.49	32.34	42.52	42.85	45.85	1.17
Musatoff HA-8 Hi Gain	18.29	18.29	19.29	19.29	19.29	32.20	36.00	37.40	44.30	1.05
RME ADI-2 DAC FS Iem Mode	-3.71	-2.71	-2.71	-2.71	-2.71	32.07	33.07	33.07	33.07	0.36
Musatoff HA-5SE	17.32	17.32	17.32	18.32	18.32	32.05	36.19	43.76	43.76	1.14
Audinst HUD-DX1 Low Gain (Robitron Power 12V 0.8A)	14.31	14.31	14.31	14.31	14.31	32.04	44.93	44.93	44.93	1.99
iFi NEO iDSD Single-ended Out	7.99	7.99	8.99	8.99	8.99	31.85	42.03	43.90	43.90	0.25
Audinst HUD-DX1 Hi Gain (Robitron Power 12V 0.8A)	14.30	14.30	14.30	14.30	14.30	31.84	44.85	44.85	45.85	1.99
Loxjie P20 Linear Power Single-ended Out	13.51	13.51	13.51	13.51	13.51	31.80	32.65	33.65	33.65	23.34
FiiO Alpen E17	2.47	9.46	9.46	10.46	10.46	31.78	41.43	41.43	41.43	0.10
iFi Pro iDSD Tube Hi Gain Balanced Out	14.55	14.55	14.55	15.53	15.53	31.75	45.31	45.31	46.27	2.92
Loxjie P20 Balanced Out	19.43	19.43	19.43	19.43	19.43	31.47	31.47	31.47	31.47	46.63
Luxury & Precision L5 Pro	9.12	9.12	9.12	9.12	9.12	31.41	41.01	42.03	42.03	3.66
Creative Sound BlasterX AE-9 Iem Mode	4.01	4.01	4.01	4.01	4.01	31.40	39.41	39.41	39.41	1.16
Cayin HA-1AMK2 for 150-300 ohm	9.13	25.14	25.14	29.15	29.15	31.26	38.88	41.21	42.36	125.12
Audinst HUD-DX1 Hi Gain (USB Power)	2.58	3.58	3.58	3.58	3.58	31.25	33.25	33.25	33.25	2.01
xDuoo x10 Low Gain	4.37	6.31	6.31	7.37	7.37	31.16	38.92	38.92	38.92	0.11
ASUS Essence 3 Balanced Out	12.52	14.52	16.48	16.48	16.48	31.10	39.35	41.33	41.33	48.81
ASUS Xonar Essence STX Mid Gain	10.29	10.29	10.29	10.29	10.29	31.10	41.78	41.78	41.78	11.74
Loxjie P20 Default Power Single-ended Out	13.51	13.51	13.51	13.51	13.51	31.08	31.82	32.33	32.33	23.34
Shanling M2	4.86	5.86	5.86	5.86	5.86	30.95	38.54	38.54	38.54	4.86
HiFiMan HM700 Single-ended Out	-2.89	-2.89	-2.89	-2.89	-2.89	30.95	31.96	31.96	31.96	1.95
Colorful Colorfly C4 Pro Jack 3.5	-4.42	-4.42	-4.42	-4.42	-4.42	30.89	30.89	30.89	30.89	10.14
Musatoff HA-4	14.75	14.75	14.75	14.75	14.75	30.83	31.63	31.63	32.63	0.00
Creative Sound BlasterX AE-9 Normal Mode	10.03	10.03	10.03	10.03	10.03	30.79	43.43	43.43	43.43	1.16
FiiO X7 II Balanced Out	13.00	13.00	13.00	13.00	13.00	30.72	42.92	42.92	42.92	1.94
iBasso DX 320 AMP12	17.94	17.94	17.94	17.94	17.94	30.66	39.99	39.99	40.21	2.02
iBasso DX 320 AMP13 Hi Out	9.47	12.38	12.38	12.38	12.38	30.66	37.69	37.69	37.69	2.25
Pro-Ject Head Box DS2 B 12 Mid Gain Single-ended Out	18.63	18.63	18.63	18.63	18.63	30.63	41.25	41.25	41.25	21.36
Pro-Ject Head Box DS2 B 12 Low Gain Single-ended Out	18.63	18.63	18.63	18.63	18.63	30.63	41.25	41.25	41.25	48.23
DIY 6N2-FU32 Out 1	1.17	7.17	10.17	10.17	10.17	30.61	42.85	43.85	44.84	3.70
Aune T1 Low	4.63	4.63	4.63	4.63	4.63	30.54	36.31	36.31	36.31	10.26
Creative Sound BlasterX AE-9 High Mode	15.01	15.01	15.01	15.01	15.01	30.52	43.40	43.40	43.40	1.15
SMSL sAp-9 Single-ended Out	2.77	10.76	10.76	10.76	10.76	30.49	38.49	38.49	38.49	25.26
Pro-Ject Head Box DS2 B 12 High Gain Single-ended Out	18.22	18.22	18.22	18.22	18.22	30.47	42.63	42.92	42.92	6.61
ASUS Xonar Essence STX Hi Gain	15.36	15.36	15.36	16.36	16.36	30.40	46.96	46.96	46.96	10.34
Cayin i5	9.52	7.25	7.25	7.25	7.25	30.39	41.00	41.00	41.00	0.91
Creative SXFI AMP Asus M1	7.30	7.30	7.30	8.30	8.30	30.36	38.05	38.05	38.05	0.16
xDuoo XD05 Bal Boost On Low Gain Single-ended Out	8.27	8.27	8.27	8.27	8.00	30.34	44.19	44.19	44.19	0.16
DIY 6N2-FU32 Out 2	-3.38	2.62	7.62	8.61	8.61	30.33	36.31	43.29	45.28	3.50
xDuoo XD05 Bal Boost Off Low Gain Single-ended Out	8.26	8.26	8.26	8.26	8.00	30.26	43.19	43.19	43.19	0.15
Xuelin iHiFi 960 Pro	4.28	4.28	4.28	4.28	4.26	30.22	35.93	35.93	35.93	10.31
Musatoff HA-5 Low Gain	6.58	6.58	6.58	6.58	6.58	30.20	32.08	34.08	37.75	0.89
Musatoff HA-8 Low Gain	6.58	6.58	6.58	6.58	6.58	30.12	33.31	35.68	41.99	1.15
Audiotrak Dr.Dac 2 OPA 627	17.64	17.64	17.64	17.64	17.64	30.10	45.10	45.10	45.10	0.06
Loxjie D20 Current Mid Mode	12.02	12.02	12.02	12.02	12.02	30.07	47.48	47.48	47.48	1.02
Kennerton Atlas Internal DAC	2.19	2.19	2.19	2.19	2.19	30.06	34.26	34.26	34.26	8.81
OPPO HA-2	7.55	8.55	8.55	8.55	8.55	29.89	40.03	42.03	42.03	1.26
ASUS Xonar Essence STX Low Gain	-1.70	-1.70	-1.70	-1.70	-1.70	29.82	29.82	29.82	29.82	11.74
Ensoniq ES1370	9.11	9.11	9.11	9.11	9.11	29.79	43.73	43.73	43.73	0.83
iFi Pro iDSD Tube Hi Gain Single-ended Out	8.84	8.84	9.83	9.83	9.83	29.75	43.52	44.49	44.49	2.61
Meizu 16	0.25	0.25	0.25	0.25	0.25	29.73	31.72	31.72	31.72	2.62
Audinst HUD-DX1 Low Gain (USB Power)	2.33	3.33	3.33	3.33	3.33	29.66	31.28	32.39	32.39	1.99
Musatoff HA-11 Low Gain	6.58	6.58	6.58	6.58	6.58	29.33	32.26	32.26	32.26	1.13
Musatoff HA-5 Hi Gain	16.21	16.21	16.21	16.21	16.21	29.27	35.32	42.73	43.40	0.77
Oriolus DP100 Balanced Out	7.97	7.97	7.97	7.97	7.97	29.20	29.50	29.50	29.50	1.81
Lotoo PAW 5000 MKII Single-ended Out	7.96	8.96	8.96	8.96	8.96	29.13	38.13	38.13	38.13	1.62
xDuoo XD05 Bal Boost On Low Gain Balanced Out	13.85	13.85	13.85	13.85	14.00	28.94	38.75	38.75	38.75	0.23
ASUS Impresario SBW-S1 PRO Xonar	15.38	16.38	16.38	16.38	16.38	28.85	29.85	29.85	29.85	194.77
FiiO X3 III Hi Gain Balanced Out	-3.38	5.62	8.62	8.62	8.62	28.80	36.24	36.24	36.24	1.00
Musatoff HA-11 Hi Gain	17.12	17.12	17.12	17.12	17.12	28.43	32.74	34.24	35.99	1.14
Cayin HA-1AMK2 for 600 ohm	11.49	17.49	28.50	31.50	31.50	28.35	36.46	37.33	39.94	201.32
Luxury & Precision W2 Balanced Out	10.83	10.83	10.83	11.72	11.72	28.05	38.63	39.51	39.51	0.44
Hidizs AP200	3.03	3.03	3.03	3.03	3.03	28.04	36.58	36.58	36.58	5.29
QLS QA361 High voltage Balanced Out	15.60	17.60	17.60	17.60	17.60	28.03	36.52	36.52	36.52	0.33
xDuoo XP-2 Pro	2.79	8.79	8.79	8.79	8.79	27.95	37.89	37.89	37.89	0.99
Loxjie D20 Current Max Mode	12.02	12.02	12.02	12.02	12.02	27.90	47.48	47.48	0.00	1.02
Musiland Monitor 03 US	-3.78	4.22	4.22	4.22	4.22	27.86	35.85	35.85	35.85	0.41
Unison Research SH For Hi Mode	-7.82	-5.83	-5.83	-5.83	-5.83	27.85	29.84	29.84	29.84	0.60
Qudelix 5K Single-ended Out	-0.01	5.53	5.53	5.53	5.53	27.84	36.87	36.87	36.87	0.20
QLS QA361 Large Current Single-ended Out	6.13	9.13	9.13	9.13	9.13	27.83	40.14	40.14	40.52	0.19
Xiaomi Redmi Note 4	-1.88	-1.88	-1.88	-1.88	-1.88	27.77	27.77	27.77	27.77	17.09
xDuoo XD05 Bal Boost On Hi Gain Balanced Out	20.30	20.30	20.30	20.30	20.00	27.75	37.13	37.13	37.13	0.22
xDuoo XD05 Bal Boost Off Low Gain Balanced Out	13.86	13.86	13.86	13.86	14.00	27.71	45.38	45.76	45.76	0.23
Onix Alpha XI1 Single-Ended Out	7.32	7.32	7.32	7.32	7.32	27.70	42.67	42.67	42.67	0.22
Loxjie D20 Current Min Mode	12.03	12.03	12.03	12.03	12.03	27.67	47.48	47.48	47.48	1.02
Creative SoundBlasterX G6 Line out	5.84	5.84	5.84	5.84	5.84	27.62	27.62	27.62	27.62	48.53
iBasso D14 Bushmaster	8.22	8.22	8.22	8.22	8.22	27.60	32.10	43.18	43.18	0.10
Leaf Audio CMD-22 V1.2.3 Gliese LT1361	16.21	16.21	16.21	16.21	16.21	27.48	38.22	44.79	44.79	10.74
FiiO X7 AM2	9.72	9.72	9.72	9.72	9.72	27.45	33.62	40.88	40.88	0.09
Hiby FD3 Single-ended Out	5.31	6.31	6.31	6.31	6.31	27.43	38.16	38.16	38.16	0.27
Aune B1s Class A+ Low Gain	5.35	5.35	5.35	5.35	5.35	27.28	27.96	27.96	28.28	1.10
RHA Bluetooth Cable (CL2 Planar)	-8.04	-8.04	-8.04	-8.04	-8.04	27.27	27.27	27.27	27.27	1.14
Audirect Beam 3 plus Single-ended Out	6.02	6.02	6.02	6.02	6.02	27.25	38.96	38.96	38.96	1.12
xDuoo XD05 Bal Boost Off Hi Gain Balanced Out	16.37	16.37	16.37	16.37	20.00	27.15	43.13	43.13	43.13	0.23
Lotoo PAW 5000 MKII Balanced Out	7.97	8.97	8.97	8.97	8.97	27.06	37.78	37.78	38.01	2.00
Aune B1s Class A+ Hi Gain	12.20	12.20	12.20	13.20	13.20	27.00	27.68	27.99	27.99	1.11
xDuoo x10 Hi Gain	8.40	8.40	8.40	8.40	8.40	26.88	37.85	37.85	37.85	0.11
Onix Alpha XI1 Balanced Out	13.41	13.41	13.41	13.41	13.41	26.72	44.72	44.72	44.72	0.41
QLS QA361 Standard Balanced Out	14.08	15.08	15.08	15.08	15.08	26.72	36.67	36.67	36.67	0.33
Weiliang Audio U9	13.95	13.95	13.95	13.95	13.95	26.69	29.44	29.44	30.38	12.16
xDuoo MT-602	4.41	19.22	19.22	19.22	19.22	26.65	35.79	43.45	43.45	3.24
Dared EF-99 Mid Gain	9.81	11.76	11.76	11.76	11.76	26.49	32.25	38.54	38.54	6.39
Hiby New R6 Balanced Out	14.82	14.82	14.82	14.82	14.82	26.42	41.70	41.70	41.70	0.25
Creative Sound BlasterX AE-5 Line Out	6.36	6.36	6.36	6.36	6.36	26.41	26.91	26.91	26.91	1.94
Creative Sound Blaster Live! 5.1 (SB0600)	6.28	6.28	6.28	6.28	6.28	26.37	32.68	32.68	32.68	31.70
xDuoo XD05 Bal Boost Off Hi Gain Single-ended Out	10.28	10.28	10.28	10.28	14.00	26.34	34.08	43.70	43.70	0.18
Cayin N6	2.04	11.03	11.03	11.03	11.03	25.89	41.46	41.46	41.46	0.16
iBasso DC04	11.91	11.91	11.91	11.91	11.91	25.85	36.50	37.50	37.50	0.16
Aune X1s	18.06	18.06	18.06	18.06	18.06	25.71	33.08	43.61	43.61	10.35
Astell&Kern Kann Cube Hi Gain Single-ended Out	11.61	15.61	15.61	15.61	15.61	25.62	32.58	32.58	32.78	1.04
Luxury & Precision L3 Pro DSD Balanced Out	1.55	7.54	7.54	7.54	7.54	25.55	41.31	41.31	41.31	4.73
iBasso DC05	6.03	6.03	6.03	6.03	6.03	25.53	32.00	33.73	33.73	2.56
HiFiMan HM 802 Balanced Card Single-ended Out	1.43	7.44	7.44	7.44	7.44	25.49	31.24	37.41	40.29	0.26
Chord Hugo	13.06	13.06	13.06	13.06	13.06	25.47	33.75	39.53	41.86	0.17
Acer Iconia Tab W500	-10.65	-7.65	-7.65	-7.65	-7.65	25.35	24.74	24.74	24.74	47.40
Xiaomi Redmi Note 8 Pro UAPP	-3.70	-3.70	-3.70	-3.70	-3.70	25.23	25.23	25.23	25.23	19.94
Luxury & Precision W2-131 Balanced Out	11.89	11.89	11.89	11.89	11.89	25.17	39.09	39.09	39.33	0.46
Cayin N3 Pro Transistor Mode Single-ended Out	7.09	9.09	9.09	9.09	9.09	25.17	42.09	42.09	42.09	0.83
QLS QA361 Double voltage Single-ended Out	7.66	11.66	11.66	11.66	11.66	24.89	42.13	42.13	42.51	0.19
KGUSS DAC-K3	-2.92	12.09	12.09	12.09	12.09	24.68	43.84	43.84	43.84	10.16
Takstar HA 101	16.80	16.80	16.80	16.80	16.80	24.51	41.72	44.22	45.05	0.22
Cayin N5 Single-ended Out	-4.21	10.79	10.79	10.79	10.79	24.44	42.23	42.23	42.23	0.18
Vorzuge VorzAMPpure II Plus	9.76	9.76	11.76	11.76	11.76	24.42	40.53	42.33	42.33	0.09
iBasso DX80	7.43	7.43	9.43	9.43	9.43	24.31	41.34	41.34	41.34	0.19
Lenovo G770	1.24	1.24	1.24	1.24	1.24	24.20	30.62	30.62	30.62	16.87
QLS QA361 Large Current Balanced Out	14.09	15.09	15.09	15.09	15.09	24.14	35.50	35.50	35.50	0.34
AuGlamour GR-1	7.93	8.93	8.93	9.93	9.93	24.13	32.30	32.30	33.30	2.42
Audirect Beam 2 Balanced Out	3.63	3.63	3.63	3.63	3.63	23.67	38.38	38.38	38.38	2.52
Erzetich Bacillus Tilia	17.09	17.09	17.09	18.09	18.09	23.59	37.05	37.05	38.05	57.41
Westone Bluetooth Cable V2 WBTV2	-12.22	-12.22	-12.22	-12.22	-12.22	23.54	23.54	23.54	23.54	0.50
Astell&Kern KANN Balanced Out	14.89	14.89	14.89	15.85	15.85	23.47	36.34	40.85	41.05	1.67
Cayin N5 Balanced Out	2.81	16.81	16.81	16.81	16.81	23.41	42.29	42.29	42.29	0.23
Qudelix 5K Balanced Out	-5.98	12.02	12.02	12.02	12.02	23.32	41.38	41.38	41.38	0.31
Questyle QP1R H-Gain	4.44	5.44	5.44	5.44	5.44	23.30	27.23	32.36	32.36	0.17
Philips Acoustic Edge PSC706	5.65	5.65	5.65	5.65	5.65	23.27	23.27	23.27	23.27	97.75
xDuoo X2	-5.55	-2.54	0.46	0.46	0.46	23.14	27.23	36.23	36.23	0.14
Luxury & Precision L3 DSD Balanced Out	-4.53	7.46	7.46	7.46	7.46	23.11	41.08	41.08	41.08	5.00
Audiolab M-DAC	9.91	9.91	9.91	9.91	9.93	23.05	27.08	36.19	39.70	0.40
Fosi Audio DS2 (CS43131) Single-Ended Out	6.07	6.07	6.07	6.07	6.07	22.97	36.74	37.74	37.74	0.65
HiFiMan HM 802 Balanced Card Balanced Out	4.46	13.46	13.46	13.46	13.46	22.91	33.35	36.76	40.58	11.30
ASUS STRIX RAID PRO Low Gain	4.03	4.03	4.03	4.03	4.03	22.78	22.78	22.78	22.78	98.80
Sabaj HPA1 Jack 3.5	8.91	11.91	11.91	11.91	11.91	22.78	27.56	27.56	27.56	147.85
Dared EF-99 Hi Gain	11.97	14.92	14.92	14.92	14.92	22.73	29.34	36.18	36.18	11.71
Astell&Kern AK380 AMP Hi Gain Single-ended Out	9.76	9.76	9.76	10.76	10.76	22.68	34.57	39.21	39.21	0.65
Astell&Kern A&norma SR15 Single-ended Out	5.77	5.77	5.77	5.77	5.77	22.63	30.40	30.40	30.40	0.78
Shanling MW 200	-1.09	-1.09	-1.09	-1.09	-1.09	22.56	29.93	32.69	32.69	0.75
iBasso DX 320 AMP13 Low Out	3.21	9.05	9.05	9.05	9.05	22.42	31.81	31.81	31.81	6.06
Topping NX4	11.94	13.94	13.94	14.94	14.94	22.37	38.20	38.20	38.20	0.44
Astell&Kern AK380 AMP Norm Gain Single-ended Out	5.30	5.30	5.30	5.30	5.30	22.31	32.20	36.17	36.17	0.65
Fosi Audio DS2 (CS43131) Balanced Out	12.10	12.10	12.10	12.10	12.10	22.29	38.76	38.76	38.76	0.74
Astell&Kern KANN Single-ended Out	8.91	9.91	9.91	9.91	9.91	22.22	36.31	41.31	43.11	0.61
Xiaomi Mi 9T Pro Neutron 44	-6.07	-6.07	-6.07	-6.07	-6.07	22.20	22.20	22.20	22.20	22.66
xDuoo XP-2 Hi Gain	8.68	8.68	8.68	8.68	8.68	22.14	35.98	35.31	38.28	0.64
Sabaj PHA1 Jack 6.3	8.05	12.05	12.05	12.05	12.05	22.13	32.67	36.41	36.89	1.07
xDuoo TA-02	9.87	18.35	18.35	18.35	18.35	22.13	27.95	33.58	39.54	13.01
Kennerton Ego	2.59	2.59	2.59	2.59	2.59	22.09	34.63	34.63	34.63	8.24
Hiby FD3 Balanced Out	9.35	12.35	12.35	12.35	12.35	22.08	29.33	37.20	39.05	0.52
QLS Quloos QA390 Super Hi - Mid Balanced Out	19.87	19.87	19.87	19.87	19.87	22.02	49.52	49.52	49.67	0.77
QLS QA361 Normal Single-ended Out	8.13	9.13	9.13	9.13	9.13	21.95	38.14	38.14	38.53	0.20
Lotoo Paw Gold	6.97	7.97	7.97	7.97	7.97	21.83	38.86	38.86	38.86	1.80
Hidizs AP100	6.01	6.01	6.01	6.01	6.01	21.72	30.08	40.84	41.84	0.34
Lenovo Edge E130	0.59	0.59	0.59	1.47	1.47	21.60	21.60	21.60	22.47	73.79
Astell&Kern Kann Cube Mid Gain Single-ended Out	11.08	12.08	12.08	12.08	12.08	21.58	32.98	32.98	33.04	1.04
Sabaj D4	11.65	13.65	13.65	13.65	13.65	21.44	36.15	36.90	36.90	10.96
Astell&Kern AK380 AMP Hi Gain Balanced Out	15.74	15.74	15.74	15.74	15.74	21.38	32.90	39.25	40.14	1.51
Lenovo s820	-13.31	-13.31	-13.31	-13.31	-13.31	21.34	21.34	21.34	21.34	2.53
Unison Research SH For Low Mode	1.40	4.38	4.38	4.38	4.38	21.30	37.53	37.53	37.53	1.62
Aune B1s Class A- Hi Gain	12.39	12.39	13.39	13.39	13.39	21.25	21.59	22.25	22.59	1.10
LG G7 Hi-Fi Quad DAC Off, without impedance headphone connected	-2.17	-2.17	-2.17	-2.17	-2.17	21.22	30.97	32.98	32.98	1.70
Luxury & Precision L3 DSD Single-ended Out	1.42	1.42	1.42	1.42	1.42	21.11	36.23	36.23	36.23	2.36
HiFiMan HM 802 MiniBox	6.85	8.85	8.85	8.85	8.85	21.08	32.56	36.56	43.68	0.33
xDuoo XD-05 Plus Low Boost On	9.96	9.96	9.96	9.96	9.96	21.07	36.28	44.80	44.80	2.28
Walnut V3 Balanced Out	17.41	17.41	17.41	17.41	17.41	21.05	30.66	30.66	30.66	48.88
Hiby New R6 Single-ended Out	7.75	7.75	8.75	8.75	8.75	20.90	35.42	35.42	35.42	0.92
LG G7 Hi-Fi Quad DAC Off, Hi impedance headphone connected (60-750 ohm)	-5.10	-5.10	-5.10	-5.10	-5.10	20.82	30.10	30.10	30.10	1.67
Apple A2155 USB-C to 3.5 mm Headphone Jack Adapter Neutron 44	-5.70	-6.70	-6.70	-6.70	-6.70	20.78	30.13	30.13	30.13	0.32
Astell&Kern A&norma SR15 Balanced Out	11.79	11.79	11.79	11.79	11.79	20.70	31.03	31.03	31.03	1.51
Laconic Lunch BOX HA-06 PRO Low Gain	10.23	25.22	25.22	25.22	25.22	20.67	22.37	23.75	23.75	180.97
Audiotrak Prodigy 7.1 AMP On	16.45	16.45	16.45	16.45	16.45	20.64	29.31	34.58	34.58	33.27
xDuoo XD-05 Sanmigel Mod	11.60	11.60	11.60	11.60	11.60	20.52	35.29	35.73	35.73	0.10
Xuelin iHiFi 100	-11.12	-2.12	2.87	2.87	2.87	20.48	29.48	34.46	36.38	12.62
Dared HPA-55L Balanced Out	6.93	11.93	11.93	11.93	11.93	20.38	41.51	41.51	41.51	10.71
Astell&Kern Kann Cube Low Gain Single-ended Out	6.10	6.10	6.10	6.10	6.10	20.10	30.04	30.59	30.59	1.05
QLS Quloos QA390 Super Hi - Mid Single-ended Out	13.84	13.84	13.84	13.84	13.84	19.93	39.90	44.91	44.91	4.17
Astell&Kern Kann Cube Low Gain Balanced Out	11.72	11.72	11.72	11.72	11.72	19.80	29.13	29.13	29.13	2.36
Astell&Kern Kann Cube Mid Gain Balanced Out	17.66	17.66	17.66	17.66	17.66	19.72	32.30	32.30	32.30	2.31
E-MU 1616m	10.79	15.79	15.79	15.79	15.79	19.51	25.08	27.40	31.20	22.06
MyST DAC 2702 UAmp	19.38	20.38	20.38	21.38	21.38	19.36	44.40	44.40	44.40	10.50
Astell&Kern AK380 AMP Norm Gain Balanced Out	5.35	5.35	5.35	5.35	5.35	19.20	31.75	36.07	36.07	2.11
Astell&Kern AK70 Single-ended Out	6.88	6.88	6.88	6.88	6.88	19.19	25.79	26.23	26.23	3.40
xDuoo XD-05 Plus Low Boost Off	9.95	9.95	9.95	9.95	9.95	19.19	24.47	41.80	42.80	2.28
xDuoo XD-05 Plus Mid Boost On	12.13	12.13	12.13	12.13	12.13	19.10	26.90	43.98	43.98	2.28
Dared HPA-55L Single-ended Out	-5.44	5.56	5.56	5.56	5.56	19.07	38.96	38.96	38.96	5.51
iFi NEO iDSD Balanced Out	5.95	13.95	14.95	14.95	14.95	19.06	45.62	46.25	46.25	0.47
Astell&Kern Kann Cube Hi Gain Balanced Out	15.16	21.16	21.16	21.16	21.16	18.99	31.92	31.92	31.92	2.31
xDuoo TA-01	13.36	16.32	16.32	16.32	16.32	18.98	26.54	31.43	33.10	7.02
xDuoo XP-2 Low Gain	2.63	2.63	2.63	2.63	2.63	18.89	38.24	38.24	38.24	0.63
FiiO X7 AM2 OLD FW	4.74	4.74	4.74	4.74	4.74	18.86	28.64	38.73	38.73	0.10
FiiO X3 II Low Gain	0.41	2.40	2.40	2.40	2.40	18.85	20.65	38.18	38.18	0.25
CEntrance DACPort HD	2.80	8.80	8.80	8.80	8.80	18.80	26.16	34.85	42.13	1.36
Pioneer XDP-300R Balanced Out	11.80	11.80	11.80	11.80	11.80	18.72	23.29	36.15	36.15	6.96
Behringer UB 502	18.42	18.42	18.42	19.41	19.41	18.71	33.20	33.20	34.19	21.84
Pioneer XDP-300R Single-ended Out	5.82	5.82	5.82	5.82	5.82	18.66	26.43	34.66	34.66	3.38
ASUS K50IJ	0.91	0.91	0.91	0.91	0.91	18.57	26.01	26.01	26.01	40.45
FiiO X3 II Hi Gain	3.99	7.98	7.98	7.98	7.98	18.28	29.08	39.94	39.94	0.14
Laconic Lunch BOX HA-06 PRO Hi Gain	11.52	26.50	26.50	26.50	26.50	18.19	20.76	22.74	23.45	55.35
SMSL sAp VI	11.58	15.58	15.58	15.58	15.58	18.03	31.53	35.47	35.47	10.22
Creative X-Fi Xtreme Gamer Fatal1ty Professional Series Creation Mode 44 kHz	1.54	6.54	6.54	6.54	6.54	17.99	30.14	30.14	31.36	35.20
QLS QA361 High voltage Single-ended Out	9.64	11.64	11.64	11.64	11.64	17.97	37.73	37.73	38.06	0.19
Chord Mojo	12.33	12.33	12.33	12.33	12.33	17.91	35.70	40.90	43.29	0.21
Astell&Kern AK320 Single-ended Out	6.73	6.73	6.73	6.73	6.73	17.86	23.95	25.70	26.23	2.02
Benjie K9	-5.56	-5.56	-5.56	-5.56	-5.56	17.85	24.70	30.03	30.03	0.65
Unison Research SH For Low Mode - Line in	-13.52	3.46	4.45	4.45	4.45	17.84	35.79	36.78	36.78	1.61
ASUS ROG Strix Fusion 700 USB EQ 0 Boost On	-1.73	-1.73	-1.73	-1.73	-1.73	17.74	34.00	34.00	34.00	0.53
Creative X-Fi Elite Pro Front	6.41	6.41	6.41	6.41	6.41	17.74	28.64	28.64	28.64	34.07
CEntrance HiFi-M8 V2 6.3 Single-ended Out	0.60	9.60	9.60	9.60	9.60	17.74	25.55	33.22	40.04	1.12
iBasso D10 Cobra	-17.76	-4.76	-3.75	-3.75	-3.75	17.68	30.66	31.66	31.66	1.05
Astell&Kern AK240 Single-ended Out	6.48	6.48	6.48	6.48	6.48	17.65	23.82	27.13	28.64	3.42
Creative X-Fi Elite Pro Console (HP Out)	-2.58	6.42	6.42	6.42	6.42	17.60	31.87	31.87	31.87	32.41
Hiby FC5 Single-ended Out	1.22	2.22	2.22	3.23	5.75	17.57	29.86	34.67	34.67	0.15
Audirect Beam 2 Single-ended Out	-2.06	-2.06	-2.06	-2.06	-2.06	17.52	33.29	33.29	33.29	1.15
Astell&Kern AK300 Single-ended Out	5.75	5.75	5.75	5.75	5.75	17.43	25.14	27.55	28.81	1.86
CEntrance HiFi-M8 V2 XLR Balanced Out	0.61	15.61	15.61	15.61	15.61	17.15	23.15	29.15	35.14	2.15
CEntrance HiFi-M8 V2 3.5 Single-ended Out	-2.82	3.18	3.18	3.18	3.18	17.11	24.11	35.94	35.94	0.11
LG 24MP76	-6.29	-3.29	-2.29	1.72	1.72	16.88	20.90	26.22	26.20	10.34
iBasso DX 320 AMP11 Balanced Out	14.83	16.83	16.83	16.83	16.83	16.79	43.16	43.16	43.16	0.49
Hiby FC5 Balanced Out	7.27	8.27	8.27	8.27	6.58	16.56	29.29	34.72	34.72	0.19
Audirect Beam 3 plus Balanced Out	12.05	12.05	12.05	12.05	12.05	16.56	38.83	39.07	39.07	1.93
Cayin N3 Pro Ultralinear Tube Mode Single-ended Out	-19.10	-5.97	-2.99	-1.10	-1.10	16.51	29.63	32.62	34.53	0.82
Astell&Kern AK70 Balanced Out	6.91	6.91	6.91	6.91	6.91	16.42	24.58	25.08	25.08	9.86
iBasso DX 320 AMP11 Single-ended Out	8.77	9.77	9.77	10.77	10.77	16.39	43.57	43.57	43.57	0.38
xDuoo XD-05 Plus Mid Boost Off	12.13	12.13	12.13	12.13	12.13	16.24	25.94	41.99	41.99	2.27
xDuoo XD-05 Plus Hi Boost Off	12.78	12.78	12.78	12.78	12.78	16.20	42.21	42.21	42.21	2.29
McIntosh MHA50 Hi Gain	-18.55	6.45	6.45	6.45	6.45	16.06	36.07	36.07	36.07	0.56
Creative Sound Blaster Omni Surround 5.1 Wasapi SSRC 96 kHz	6.25	6.25	6.25	6.25	6.25	16.03	31.65	31.65	32.65	17.98
theBit OPUS 2 Single-ended Out	6.69	6.69	6.69	6.69	6.69	16.03	23.62	26.63	29.87	1.99
FiiO K5 Hi Gain	16.21	16.21	16.21	16.21	16.21	15.63	38.73	49.19	49.19	0.10
Cayin N3 Pro Triode Tube Mode Single-ended Out	-19.83	-6.94	-4.06	-2.20	-2.20	15.60	28.52	31.41	33.28	0.82
xDuoo XD-05 Default	11.96	11.96	11.96	12.96	12.96	15.50	23.94	42.32	42.32	0.22
Hidizs S9 Pro Balanced Out	12.21	12.21	12.21	12.21	12.21	15.33	31.35	36.97	36.97	0.53
Cayin N3	7.39	7.39	7.39	7.39	7.39	15.22	38.16	38.16	38.16	0.58
xDuoo XD-05 Plus Hi Boost On	18.07	18.07	18.07	18.07	18.07	15.18	44.19	44.19	44.19	2.28
Apple iPhone 5S	0.18	0.18	0.18	0.18	0.18	15.06	31.85	34.06	34.06	2.16
iBasso DX240 AMP8 MK2 Single-ended Out	9.29	9.29	9.29	9.29	9.29	15.06	44.63	44.63	44.63	0.30
LG G7 Hi-Fi Quad DAC On, Low impedance headphone connected (16-30 ohm)	-8.64	-8.64	-8.64	-8.64	-8.64	15.02	26.97	26.97	26.97	0.85
Luxury & Precision W2 Single-ended Out	4.80	4.80	4.80	5.69	5.69	14.89	40.75	40.75	41.63	0.15
Grado RA-1	16.06	16.06	16.06	16.06	16.06	14.80	23.37	30.05	35.24	0.50
LG G7 Hi-Fi Quad DAC On, without impedance headphone connected	0.39	0.39	0.39	0.39	0.39	14.80	28.56	29.11	29.11	0.87
Pro-Ject Pre Box S2 Digital	5.92	5.92	5.92	5.92	5.92	14.78	34.90	34.90	34.90	0.11
Benjie S5	-5.93	-5.93	-5.93	-5.93	-5.93	14.70	17.17	26.43	29.13	1.25
Onkyo Granbeat DP-CMX1 Single-ended Out	5.91	5.91	5.91	5.91	5.91	14.52	26.73	35.18	35.18	3.52
Zishan DSDs Dual CS43198 Balanced Out	10.62	10.62	10.62	10.62	10.60	14.40	37.47	37.47	37.47	20.25
SMSL ivy	2.29	2.29	2.29	2.29	2.29	14.40	36.24	36.24	36.24	0.09
Onkyo Granbeat DP-CMX1 Balanced Out	11.90	11.90	11.90	11.90	11.90	14.28	24.84	36.66	36.66	7.20
Apple A1749 Lightning Audio Adapter (iPhone 5s)	-0.01	-0.01	-0.01	-0.01	-0.01	14.16	22.63	33.82	33.82	0.31
Benjie X1	-5.96	-5.96	-5.96	-5.96	-5.96	14.12	19.77	28.99	28.99	4.96
HiFiMan HM 802 Gandi	2.93	5.93	5.93	6.93	6.93	14.05	21.00	26.60	37.36	0.26
iBasso DX240 AMP8 MK2 Balanced Out	15.33	15.33	15.33	15.33	15.33	14.02	31.58	44.46	44.46	0.52
Cowon Plenue M2	5.97	5.97	5.97	5.97	5.97	13.95	20.44	25.32	41.47	1.16
TurboKids TMNT	-3.85	-3.85	-2.00	-2.00	-2.00	13.75	16.19	17.16	18.03	107.40
Creative SoundBlaster Zx	6.23	6.23	6.23	6.23	6.23	13.74	33.61	33.61	33.61	18.07
Creative Audigy 5/RX	5.81	6.81	6.81	6.81	6.81	13.61	19.60	33.60	33.60	19.42
Hiby FC3	6.24	6.24	6.24	6.24	6.24	13.44	37.15	37.15	37.15	0.09
Westone Bluetooth Cable V1 WBTV1	-8.90	-8.90	-8.90	-8.90	-8.90	13.36	19.76	25.28	25.28	5.02
Pro-Ject Head Box S2 Digital	6.01	6.01	6.01	6.01	6.01	13.25	35.50	35.50	35.50	0.12
MUSE AUDIO TU-10	-7.86	-1.77	4.37	4.37	4.37	13.23	21.64	27.99	28.74	5.33
xDuoo XQ-10	-0.46	2.55	2.55	2.55	2.55	12.95	34.32	34.32	34.32	0.07
xDuoo D3 nano	3.03	3.03	3.03	3.03	3.03	12.74	37.99	37.99	37.99	0.12
Noname ESS ES9280C PRO	5.92	5.92	5.92	5.92	5.92	12.49	34.14	34.14	34.14	1.03
Luxury & Precision W2-131 Single-ended Out	5.85	5.85	5.85	5.85	5.85	12.41	38.10	38.70	38.70	0.28
Audiotrak Prodigy 7.1 AMP Off	3.05	3.05	3.05	3.05	3.05	12.27	20.54	26.52	26.52	51.01
Creative SoundBlasterX G6 External power	8.17	13.16	13.16	13.16	13.16	12.12	40.55	40.55	40.55	1.15
Beyerdynamic IMPACTO essential	-7.68	-7.68	-7.68	-7.68	-7.68	12.08	16.00	27.95	27.95	0.66
Astell&Kern AK300 Balanced Out	5.73	5.73	5.73	5.73	5.73	11.88	16.00	16.83	17.40	6.19
Schiit Fulla AMP	-11.39	-11.39	5.88	5.88	5.88	11.72	17.52	33.06	34.82	0.07
Behringer MicroAmp Ha400	7.44	8.45	8.45	8.45	8.45	11.63	26.60	26.60	26.96	50.12
iBasso CF01	-15.68	-0.69	-0.69	-0.69	-0.69	11.59	28.26	28.26	28.26	19.99
iFi ZEN DAC Power Match Off Single-ended Out	-0.01	-0.01	-0.01	-0.01	-0.01	11.58	23.76	35.90	35.90	0.19
theBit OPUS 2 Balanced Out	7.51	7.51	7.51	7.51	7.51	11.56	17.05	20.22	22.94	4.49
Hidizs S9 Pro Single-ended Out	6.17	6.17	6.17	6.17	6.17	11.47	37.92	38.53	38.53	0.27
Mackie Onyx Artist 12	7.90	7.90	7.90	7.90	7.90	11.23	23.00	34.52	41.75	3.45
Hiby R3 Pro Saber Balanced Out	11.60	11.60	11.60	11.60	11.60	11.20	24.77	38.58	38.58	1.97
iFi ZEN DAC V2 Power Match On Single-ended Out	3.49	4.49	4.49	8.50	8.50	11.16	20.52	35.30	36.30	0.12
LG G7 Hi-Fi Quad DAC Off, Low impedance headphone connected (16-30 ohm)	-9.28	-9.28	-9.28	-9.28	-9.28	11.14	25.92	25.92	25.92	1.67
QLS Quloos QA390 Hi - Low Single-ended Out	9.65	9.65	9.65	9.65	9.65	10.88	39.36	41.21	41.21	4.02
Walnut V3 Single-ended Out	10.59	10.59	10.59	10.59	10.59	10.84	12.10	13.33	13.47	97.87
Creative SoundBlasterX G6 Hi Gain	10.03	14.03	14.03	14.03	14.03	10.50	38.64	39.93	39.93	1.15
iFi ZEN DAC V2 Single Power Match Off	-1.82	0.18	0.18	0.18	0.18	10.46	18.70	36.16	36.16	0.12
Aureal Vortex AU8830A2 BA88DL30A-01	2.87	2.87	2.87	2.87	2.87	10.46	24.25	35.10	35.10	4.52
Denon DA-10 Hi Gain	3.73	8.73	8.73	9.73	9.73	10.39	20.51	20.51	29.93	10.96
FiiO X1 MK2	3.52	3.52	3.52	3.52	3.52	10.31	22.95	36.98	36.98	1.04
iBasso DC06 Balanced Out	12.00	12.00	12.00	12.00	12.00	10.26	19.90	41.63	41.63	0.30
McIntosh MHA50 Low Gain	-16.41	-16.41	-16.41	-16.41	-16.41	10.15	19.21	19.21	19.21	0.56
iFi ZEN DAC V2 Power Match On Balanced Out	3.99	10.99	10.99	13.00	13.00	10.09	22.11	34.62	35.62	0.27
CEntrance HiFi-M8 V2 2.5 Balanced Out	-2.81	9.19	9.19	9.19	9.19	10.02	22.98	32.50	32.50	0.11
Inakustik Premium Headphone Amp. No. 1 Out 1	4.64	4.64	4.64	4.64	4.64	9.92	17.61	21.83	30.20	5.77
Astell&Kern AK240 Balanced Out	7.34	7.34	7.34	7.34	7.34	9.82	15.84	17.69	19.64	6.41
Inakustik Premium Headphone Amp. No. 1 Out 2	4.32	5.33	5.33	5.33	5.33	9.75	17.29	23.13	34.78	6.09
Noname FDBRO	-1.46	-1.46	-1.46	-1.46	-1.46	9.53	31.63	31.63	31.63	5.88
ASUS ZenFone Max Pro (M1) AIMP OpenSL On	-0.09	-0.09	-0.09	-0.09	-0.09	9.49	22.59	29.18	31.33	3.18
iFi Hipdac Hi Gain Balanced Out	4.66	9.67	9.67	9.67	9.67	9.48	35.91	37.93	37.93	0.08
Xiaomi Mi A1 Neutron	-0.02	-0.02	-0.02	0.98	0.98	9.44	15.74	31.00	32.29	1.30
QLS Quloos QA390 Super Hi - Low Balanced Out	14.90	15.90	15.90	15.90	15.90	9.35	48.70	48.70	48.70	0.84
FiiO E10K Olympus 2 Hi Gain Bass Off	-22.47	7.53	7.53	7.53	7.53	9.30	37.72	37.72	37.72	1.06
FiiO Fujiyama E06	-9.96	4.04	4.04	4.04	4.04	9.18	23.18	37.02	37.02	0.10
Xiaomi Redmi Note 4X PowerAmp	-4.75	-4.75	-4.75	-4.75	-4.75	9.17	15.17	30.86	30.86	0.74
FiiO X5 II Hi Gain	6.68	6.68	6.68	7.68	7.68	9.11	23.38	40.65	40.65	0.24
Tecsun HD-80	3.58	12.57	12.57	12.57	12.57	8.93	15.18	19.18	23.89	24.94
Astell&Kern AK320 Balanced Out	6.76	6.76	6.76	6.76	6.76	8.81	17.23	20.68	20.86	6.37
LG G7 Hi-Fi Quad DAC On, Hi impedance headphone connected (60-300 ohm)	6.10	6.10	6.10	6.10	6.10	8.72	33.68	34.45	34.45	0.86
HiFiMan HM-801 Power Amp OCL-A 819-10571 (10 Ohm)	7.04	9.04	9.04	9.04	9.04	8.68	20.42	38.37	39.59	10.60
CEntrance Mini-M8	-12.54	2.45	2.45	2.45	2.45	8.51	11.69	16.09	25.50	0.28
M-Audio FireWire Solo	8.31	8.31	8.31	8.31	8.31	8.42	25.50	29.26	29.26	73.74
iFi ZEN DAC Power Match On Single-ended Out	4.15	4.83	9.16	9.16	9.16	8.33	19.33	34.59	37.16	0.19
iFi Hipdac Low Gain Balanced Out	5.52	5.52	5.52	5.52	5.52	8.30	35.89	37.89	37.89	0.10
ASUS ZenFone Max Pro (M1) Poweramp 384	0.28	0.28	0.28	0.28	0.28	8.08	22.51	29.61	34.70	3.21
iBasso DX100	12.89	12.89	12.89	12.89	12.89	7.94	20.04	40.87	40.87	0.07
Flang V5 Hi Gain	3.24	3.24	3.24	3.24	3.24	7.84	17.95	33.08	33.08	0.34
FiiO X5 II Low Gain	0.20	3.20	3.20	3.20	3.20	7.73	22.47	37.14	39.14	0.10
iBasso DC01	5.59	5.59	5.59	5.59	5.59	7.70	20.31	35.89	36.04	3.09
iBasso DC06 Single-ended Out	5.95	5.95	5.95	5.95	5.95	7.65	21.02	39.91	39.91	0.19
Creative Audigy Fx	-2.40	6.60	6.60	6.60	6.60	7.54	16.83	34.02	34.02	17.97
Gigabyte GA-A75-UD4H Realtek ALC889A	-5.61	3.39	3.39	3.39	3.39	7.48	10.29	10.46	10.46	298.55
Logan Musical Yuer 2i2	2.83	2.83	2.83	2.83	2.83	7.18	15.75	31.50	31.50	4.75
HiFiMan HM-801 Power Amp Board V2.0	2.08	3.08	3.08	3.08	3.08	7.14	11.99	15.32	31.44	18.22
iFi Hipdac Low Gain Balanced Out	-0.19	-0.19	-0.19	-0.19	-0.19	6.80	35.78	35.78	35.78	0.10
FiiO X1	3.37	3.37	3.37	3.37	3.37	6.71	36.43	36.43	36.43	1.82
Hiby R5 II Class A Mode Off Single-ended Out	6.09	6.09	6.09	6.09	6.09	6.70	20.94	36.75	36.75	0.64
Colorful Colorfly CK4	-5.66	-5.66	-5.66	-5.66	-5.66	6.70	18.13	24.38	30.14	1.30
SMSL AD18	2.04	2.04	2.04	2.04	2.04	6.66	33.75	34.36	34.36	0.38
Sony Walkman NW-A35	-12.68	-4.68	-0.68	-0.68	-0.68	6.35	22.36	26.98	33.71	3.19
Nexum AQUA	-2.91	3.09	3.09	3.09	3.09	6.34	11.31	30.81	30.81	4.78
Shanling M1	-1.09	0.91	0.91	0.91	0.91	6.26	15.09	35.96	35.96	1.84
Hiby R5 II Class A Mode Off Balanced Out	12.07	12.07	12.07	12.07	12.07	6.21	19.09	39.04	39.04	1.08
Flang V5 Low Gain	-0.57	-0.57	-0.57	-0.57	-0.57	6.18	18.88	31.89	33.26	0.35
FiiO E10K Olympus 2 Low Gain Bass Off	-29.29	0.71	0.71	0.71	0.71	6.17	36.17	36.17	36.17	1.04
iFi ZEN DAC V2 Power Match Off Balanced Out	1.21	6.21	6.21	6.21	6.21	5.85	18.41	36.07	36.07	0.24
Creative SoundBlasterX G6 Low Gain	1.88	1.88	1.88	1.88	1.88	5.82	35.29	35.29	35.29	1.14
SMSL M3	5.09	8.09	8.09	8.09	8.09	5.78	16.64	34.47	34.47	0.06
iFi ZEN DAC Power Match Off Balanced Out	6.01	6.01	6.01	6.01	6.01	5.76	17.26	36.19	36.19	0.18
ASUS ZenFone Max Pro (M1) Neutron	-10.65	-10.65	-10.65	-10.65	-10.65	5.68	23.78	23.78	23.78	3.19
Zishan DSDs Dual CS43198 Single-ended Out	11.91	11.91	11.91	11.91	11.93	5.23	31.47	36.12	36.12	10.77
iFi Hipdac Hi Gain Balanced Out	10.68	15.69	15.69	15.69	15.69	5.21	35.24	38.47	38.47	0.08
Hiby R3 Pro Saber Single-ended Out	5.40	5.40	5.40	5.40	5.40	4.57	36.08	36.08	36.08	1.90
Turtle Beach Santa Cruz	0.89	1.88	1.88	1.88	1.88	3.85	9.98	13.48	31.37	11.33
Shanling M5	9.12	9.12	9.12	9.12	9.12	3.82	15.10	18.39	40.05	0.14
iBasso D-Zero	-0.95	0.05	0.05	0.05	0.05	3.13	10.13	15.27	15.87	0.61
Lotoo PAW Pico	-7.08	-6.08	-6.08	-6.08	-6.08	3.06	25.53	26.53	27.53	1.40
Xuelin iHiFi 800	0.09	0.09	0.09	0.09	0.06	3.02	14.47	23.63	35.90	0.40
QLS QA350	2.33	2.33	2.33	2.33	2.33	2.86	11.46	15.74	38.29	0.10
HiFiMan HM-603 Slim	8.09	8.09	8.09	9.09	9.09	2.24	9.34	38.50	40.04	10.75
iFi ZEN DAC Power Match On Balanced Out	4.05	6.05	9.06	9.06	9.06	1.96	11.20	29.36	30.11	0.22
Nu Force uDAC	-9.27	-3.27	1.73	4.73	4.73	1.43	7.62	12.42	30.58	5.64
Xuelin iHiFi 780 Out 2	-8.82	-7.82	-7.82	-7.82	-4.10	1.14	15.70	23.80	23.80	0.38
Fly FS504 Cirrus 2 PowerAmp (A5 v703)	-12.89	-2.89	-2.89	-2.89	-2.89	0.93	16.78	16.78	16.78	134.35
Xuelin iHiFi 770C Default	-1.10	1.89	1.89	1.89	1.89	0.65	5.59	14.75	33.47	10.15
Breeze Audio USB DAC-PD01	4.38	4.38	4.38	4.38	4.38	0.47	4.50	16.24	16.24	231.94
Digma S4	-5.02	-5.02	-5.02	-5.02	-5.02	0.43	21.79	30.48	30.48	0.75
Apple iPhone 5	0.22	0.22	0.22	0.22	0.22	-0.77	29.58	32.04	32.04	4.10
Xuelin iHiFi 780 Out 1	-8.81	-7.81	-7.81	-7.81	-7.81	-0.80	7.66	16.68	23.84	10.32
Apple iPad mini	-0.13	-0.13	-0.13	-0.13	-0.12	-1.23	25.76	34.29	34.29	1.16
EXEQ P-1021	-17.34	-2.40	-2.40	-2.40	-2.40	-1.32	25.54	25.54	25.54	65.11
HiFiMan Bluemini	5.93	5.93	5.93	5.93	5.93	-1.44	35.97	41.35	41.35	1.17
ASUS Xonar U7	-0.62	2.37	2.37	2.37	2.37	-1.53	8.14	31.13	31.13	21.25
Violectric HPA V100	7.11	25.08	25.08	25.08	25.08	-1.59	46.11	46.44	46.44	0.16
Xuelin iHiFi 770C Bright	-3.10	1.89	1.89	1.89	1.89	-1.84	8.55	12.55	36.18	10.15
EXEQ P-1001	-17.93	-3.00	-3.00	-3.00	-3.00	-2.89	8.17	20.54	24.96	57.76
ONN X6	-2.76	-2.76	-2.76	-2.76	-2.76	-3.83	0.72	0.72	31.80	3.05
KZ Bluetooth module	-10.42	-10.42	-10.42	-10.42	-10.42	-4.22	-0.42	25.06	25.06	0.92
Noname Soundcard	-0.89	-0.89	-0.89	0.08	0.08	-4.65	5.33	26.20	27.20	0.38
FiiO A1	-13.58	4.42	4.42	4.42	4.42	-5.08	35.40	36.40	36.40	0.09
Xuelin iHiFi 770 Out 2	-8.00	1.00	1.00	1.00	1.00	-5.53	4.76	11.57	36.52	0.03
Xuelin iHiFi 770 Out 1	-8.01	-4.01	0.99	0.99	0.99	-5.66	1.87	8.86	26.51	10.38
Apple Ipod 5.5 Gen	-0.85	0.15	0.15	0.15	0.15	-7.81	2.33	30.53	30.53	4.68
Sansa Clip+	-12.01	-3.01	-3.01	-3.01	-3.01	-10.95	0.30	6.02	29.69	0.41
Cowon D2	-3.13	-1.13	-1.13	-1.13	-1.13	-12.88	-2.89	1.54	29.91	2.27
HiFiMan HM-700 Balanced Out	2.57	2.57	2.57	2.57	2.57	-14.36	17.11	29.31	37.99	1.17
IBM ThinkPad X31	-12.08	-12.08	-12.08	-12.08	-12.08	-15.39	-6.25	-1.19	9.21	70.02
Cowon D2+	-3.11	-1.11	-1.13	-1.11	-1.11	-17.67	-5.08	3.50	30.86	1.83
FiiO uBTR	-15.93	-15.93	-15.93	-15.93	-15.93	-18.16	1.72	19.75	19.75	0.24
New Bee NB-1	-59.95	-59.95	-0.37	-0.37	-0.37	-26.05	-26.05	31.48	31.48	3.01
Xiaomi Redmi Note 4X Android 6 24 bit	-88.86	-4.74	-4.74	-4.74	-4.74	-53.27	17.91	21.46	30.85	0.76
Xiaomi Redmi Note 4X VLC OpenES	-90.17	-0.78	-0.78	-0.78	-0.78	-54.63	17.50	21.05	32.81	0.80
LeEco Cool changer s1	-95.30	-95.30	-9.46	-9.12	-9.12	-62.22	-62.22	23.64	23.94	6.36
Xiaomi Mi A1 VLC OpenSL ES	-84.13	5.97	5.97	5.97	5.97	-63.28	28.83	28.83	28.83	1.30

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Измерения усилителей проведены Романом Кузнецовым на программно-аппаратном комплексе RAA.

Всё тестируется как "черные ящики", без учета стоимости и статусности. Это главный принцип измерений и разработки тестов в RAA.

Из-за большого количества протестированных устройств затруднительно просматривать каждый отчет в поиске продукта с необходимыми характеристиками усилителя для наушников. Для этого и была создана эта страница сравнения, где можно быстро сравнить устройства по основным параметрам и перейти в отчет или специализированные сервисы on-line сравнения.

Kuznetsov Roman
Founder of RAA

Known by the nickname romanrex
Аuthor of articles iXBT.com

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Operating mode of the amplifiers
Voltage	- dBV
Current	- dB(mA)
Impedance	- ohm
Operating mode of the amplifiers
The type of amplifier:
Columns
Basic characteristics of headphone amplifiers
Impedance , Minimum value
Comparison services and Test reports
Measurement's report
Voltage and Sensitivity
Frequency response
Impedance
Spectra
Harmonic Distortion vs Level
Crosstalk
Crosstalk Phase
Voltage/Current

Comparison of basic characteristics AMPs

About Table management