Mesurement's report FiiO X7 AM2 test and graphs - Reference Audio Analyzer
FiiO X7
Headphone amplifierAM1
AM2
AM2 OLD FW
Headphone amplifierAM1
AM2
AM2 OLD FW
DAC Line OutDAC Line Out



Manufacturers / FiiO

Test report FiiO X7: AM2 (report for a pro)



About this report
This is a report for professionals with a suite of test of headphone amplifier.

You can see a simple report for "dummies" with explanations of the main characteristics for FiiO X7 AM2

One product can have multiple reports in different modes and with different a suite of tests.

A suite of tests for a headphone amplifier can be applied to just a universal output without a formal presence of an amplifier, if in this mode you can connect headphones to this output. Based on the results of the tests, you can understand the real picture, is the output powerful enough or not, with the initial data on the circuitry as a "black box".

Commentary to the report

FW 2.0



Test report - general data the headphone amplifier FiiO X7 AM2

Frequency response, Impedance and Frequency response with standard headphones


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Range, dB:

The maximum level of voltage from the musical power for the amplifier output

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General results
General results
FiiO X7 AM2
Channel
Center/Summary
Average variation in FR in the band 40 Hz to 15 kHz, dB
-0,27, 0,03
Average value of impedance band in 40 Hz to 15 kHz, ohm
0,1
Max voltage output
VRMS
dBV
Clear or equal class A?
3,07
9,74
Optimal or equal class AB?
3,07
9,74
3,07
9,74
Maximum current output at loaded
ohm
mA
Clear or equal class A?
100,0
30,66
Optimal or equal class AB?
30,5
50,18
15,8
121,71
15,8
121,71
Max power output
ohm
mW
dBm
Clear or equal class A?
100,0
94,02
19,73
Optimal or equal class AB?
62,4
150,49
21,77
30,5
305,98
24,86
30,5
305,98
24,86

The table shows the most important technical characteristics FiiO X7 AM2

*Center channel is received by data averaging between the left and right channels



Test conditions


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Amplifier type :
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A set of tests the amplifier contains :


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Frequency response the headphone amplifier FiiO X7 AM2


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Range, dB:
Channel:


Brief information
Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.


Table
Frequency response FiiO X7 AM2
Channel
Left
Right
Variation in frequency response in band from 100 Hz to 10 kHz, dB
-0,11, 0,02
-0,12, 0,02

Impedance the headphone amplifier FiiO X7 AM2


Graphics setting view
Channel:


Brief information
Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.


Table
Impedance FiiO X7 AM2
Channel
Left
Right
Impedance average in band from 40 Hz to 15 kHz, ohm
0,1
0,1
Resistance at 500 Hz, ohm
0,1
0,1
Resistance at 1000 Hz, ohm
0,1
0,1
The minimum value in band from 40 Hz to 15 kHz at frequency, Hz
14028,9
14028,9
The minimum value in band from 40 Hz to 15 kHz, ohm
0,1
0,1
The maximum value in band from 40 Hz to 15 kHz at frequency, Hz
107,7
52,6
The maximum value in band from 40 Hz to 15 kHz, ohm
0,1
0,1


Comparison of the parameters

Comparison of the impedance of FiiO X7 AM2 versus other models

How much are the characteristics of FiiO X7 AM2 different from other models?
This can be compared for all measured headphone models


Crosstalk the headphone amplifier FiiO X7 AM2


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Range, dB:
Channel:
Load, ohm:


Brief information
Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.


Table

Frequency response with loaded resistors from FiiO X7 AM2


Graphics setting view
Range, dB:
Channel:


Brief information
Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.


Table
Frequency response of amplifier the headphone amplifier FiiO X7 AM2
with resistive load
Channel
Center/Summary
Variation in frequency response in band 40 Hz to 15 kHz loaded 16 ohm, dB
0,01
Variation in frequency response in band 40 Hz to 15 kHz loaded 32 ohm, dB
0,00
Variation in frequency response in band 40 Hz to 15 kHz loaded 50 ohm, dB
0,00
Variation in frequency response in band 40 Hz to 15 kHz loaded 100 ohm, dB
0,00
Variation in frequency response in band 40 Hz to 15 kHz loaded 250 ohm, dB
0,00
Variation in frequency response in band 40 Hz to 15 kHz loaded 600 ohm, dB
0,00

*Center channel is received by data averaging between the left and right channels



Comparison of the parameters

Compare the frequency response of a bundle of headphones and amplifiers

How the frequency response of FiiO X7 AM2 changes when connected to different headphones? In the example the FiiO X7 AM2 and headphones Enigma Acoustics & Lotoo Dharma D200 , Sennheiser CX 5.00 , Sunrise Dragon Default, Audio-Technica ATH-E40 , Apple EarPods ). You can choose and compare bundles with other headphones .

Frequency response the headphone amplifier FiiO X7 AM2 load dynamic headphone type


Graphics setting view
Range, dB:
Channel:


Brief information
Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.


Table
Frequency response of the headphone amplifier FiiO X7 AM2
load dynamic headphone type
Channel
Center/Summary
Variation in frequency response in band 40 Hz to 15 kHz load the dynamic type, dB
0,34

*Center channel is received by data averaging between the left and right channels



Comparison of the parameters

Compare the frequency response of a bundle of headphones and amplifiers

How the frequency response of FiiO X7 AM2 changes when connected to different headphones? In the example the FiiO X7 AM2 and headphones Grado eGrado , VE Monk Plus , Jays v-Jays Small ). You can choose and compare bundles with other headphones .

Deviation of frequency response the headphone amplifier FiiO X7 AM2 load dynamic headphone type


Graphics setting view
Range, dB:
Channel:


Brief information
Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.


Table
Frequency response of amplifier FiiO X7 AM2
load dynamic headphone type
Channel
Center/Summary
Variation in frequency response in band 40 Hz to 15 kHz load the dynamic type, dB
0,01

*Center channel is received by data averaging between the left and right channels



Comparison of the parameters

Compare the frequency response of a bundle of headphones and amplifiers

How the frequency response of FiiO X7 AM2 changes when connected to different headphones? In the example the FiiO X7 AM2 and headphones Grado eGrado , VE Monk Plus , Jays v-Jays Small ). You can choose and compare bundles with other headphones .

Frequency response the headphone amplifier FiiO X7 AM2 loaded type balance armature headphone type (one driver)


Graphics setting view
Range, dB:
Channel:


Brief information
Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.


Table
Frequency response of amplifier FiiO X7 AM2
loaded type balanced armature
Channel
Center/Summary
Variation in frequency response in band 40 Hz to 15 kHz loaded type balanced armature, dB
0,32

*Center channel is received by data averaging between the left and right channels



Comparison of the parameters

Compare the frequency response of a bundle of headphones and amplifiers

How the frequency response of FiiO X7 AM2 changes when connected to different headphones? In the example the FiiO X7 AM2 and headphones Oriolus MK2 , Sony XBA-Z5 , Creative In-Ear 3 , Phiaton PS 320 , Dunu DN-2002 , iBasso IT03 , Dunu DN 900 ). You can choose and compare bundles with other headphones .

Deviation of frequency response the headphone amplifier FiiO X7 AM2 loaded type balance armature headphone type (one driver)


Graphics setting view
Range, dB:
Channel:


Brief information
Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.


Table
Frequency response of amplifier FiiO X7 AM2
loaded type balanced armature
Channel
Center/Summary
Variation in frequency response in band 40 Hz to 15 kHz loaded type balanced armature, dB
0,05

*Center channel is received by data averaging between the left and right channels



Comparison of the parameters

Compare the frequency response of a bundle of headphones and amplifiers

How the frequency response of FiiO X7 AM2 changes when connected to different headphones? In the example the FiiO X7 AM2 and headphones Oriolus MK2 , Sony XBA-Z5 , Creative In-Ear 3 , Phiaton PS 320 , Dunu DN-2002 , iBasso IT03 , Dunu DN 900 ). You can choose and compare bundles with other headphones .

Maximum voltage output level vs load FiiO X7 AM2


Graphics setting view
Channel:


Brief information
Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.


Table


Maximum voltage output level vs load FiiO X7 AM2 (the source data for the spectra)
Level
VRMS
dBV
VRMS
dBV
VRMS
dBV
VRMS
dBV
loaded 16 ohm
0,38
-8,32
0,77
-2,32
1,92
5,68
1,92
5,68
loaded 25 ohm
0,54
-5,30
1,08
0,70
2,72
8,70
2,72
8,70
loaded 31 ohm
0,54
-5,30
1,53
3,70
3,05
9,70
3,05
9,70
loaded 62 ohm
1,54
3,73
3,06
9,73
3,06
9,73
3,06
9,73
loaded 100 ohm
3,07
9,73
3,07
9,73
3,07
9,73
3,07
9,73
loaded 199 ohm
3,07
9,74
3,07
9,74
3,07
9,74
3,07
9,74
loaded 300 ohm
3,07
9,74
3,07
9,74
3,07
9,74
3,07
9,74
loaded 763 ohm
3,07
9,73
3,07
9,73
3,07
9,73
3,07
9,73
Not loaded
3,06
9,72
3,06
9,72
3,06
9,72
3,06
9,72





The maximum level of voltage from the musical power for the amplifier output FiiO X7 AM2

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Recommended impedances for headphones for FiiO X7 AM2
Recommended impedance for headphones from the range
8 - 1008 Ом для режима работы усилителя
Equivalent class AB F.A.Q.
For In-Ear Headphones
8 - 1007 ohm
8 - 1007 ohm
For Over-Ear Headphones
8 - 239 ohm
8 - 239 ohm
FiiO X7 AM2
Output Impedance
0.09 ohm
Power characteristics of the
Voltage
Current
3.06 VRMS
9.72 dBV
23.56 mA
27.45 dB(mA)
3.06 VRMS
9.72 dBV
47.95 mA
33.62 dB(mA)
3.06 VRMS
9.72 dBV
110.66 mA
40.88 dB(mA)
3.06 VRMS
9.72 dBV
110.66 mA
40.88 dB(mA)


Maximum current level output vs load FiiO X7 AM2


Graphics setting view
Channel:


Brief information
Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.


Table


Maximum current level output vs load FiiO X7 AM2 (the source data for the spectra)
Level, mA
Optimal or equal class AB?
Level
mA
dB(mA)
mA
dB(mA)
mA
dB(mA)
mA
dB(mA)
loaded 16 ohm
24,29
27,71
48,46
33,71
121,71
41,71
121,71
41,71
loaded 25 ohm
22,18
26,92
44,26
32,92
111,16
40,92
111,16
40,92
loaded 31 ohm
17,81
25,01
50,18
34,01
100,16
40,01
100,16
40,01
loaded 62 ohm
24,61
27,82
49,11
33,82
49,11
33,82
49,11
33,82
loaded 100 ohm
30,66
29,73
30,66
29,73
30,66
29,73
30,66
29,73
loaded 199 ohm
15,43
23,77
15,43
23,77
15,43
23,77
15,43
23,77
loaded 300 ohm
10,22
20,19
10,22
20,19
10,22
20,19
10,22
20,19
loaded 763 ohm
4,02
12,08
4,02
12,08
4,02
12,08
4,02
12,08
Not loaded
0,06
-24,26
0,06
-24,26
0,06
-24,26
0,06
-24,26



Maximum power level output level vs load FiiO X7 AM2


Graphics setting view
Channel:


Brief information
Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.

Table


Maximum power level output level vs load FiiO X7 AM2 (the source data for the spectra)
Level
mW
dBm
mW
dBm
mW
dBm
mW
dBm
loaded 16 ohm
9,32
9,69
37,10
15,69
234,06
23,69
234,06
23,69
loaded 25 ohm
12,05
10,81
47,99
16,81
302,76
24,81
302,76
24,81
loaded 31 ohm
9,68
9,86
76,81
18,85
305,98
24,86
305,98
24,86
loaded 62 ohm
37,80
15,77
150,49
21,77
150,49
21,77
150,49
21,77
loaded 100 ohm
94,02
19,73
94,02
19,73
94,02
19,73
94,02
19,73
loaded 199 ohm
47,36
16,75
47,36
16,75
47,36
16,75
47,36
16,75
loaded 300 ohm
31,36
14,96
31,36
14,96
31,36
14,96
31,36
14,96
loaded 763 ohm
12,33
10,91
12,33
10,91
12,33
10,91
12,33
10,91
Not loaded
0,19
-7,27
0,19
-7,27
0,19
-7,27
0,19
-7,27



THD vs load vs output voltage FiiO X7 AM2


Graphics setting view
Channel:
Load, ohm:
Type test:


Brief information
Full translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.


Table

Spectrum of Total Harmonic Distortion vs Level the headphone amplifier FiiO X7 AM2

Not loaded


Graphics setting view
Channel:
Level, dBV:

Loaded 15,8 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 24,5 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 30,5 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 62,4 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 100 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 198,9 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 300 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 763 ohm


Graphics setting view
Channel:
Level, dBV/dBm:


Brief information
Full translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.

Spectrum of IMD SMPTE vs Level the headphone amplifier FiiO X7 AM2

Not loaded


Graphics setting view
Frequency band, Hz:
Channel:
Level, dBV:

Loaded 15,8 ohm


Graphics setting view
Frequency band, Hz:
Channel:
Level, dBV/dBm:

Loaded 24,5 ohm


Graphics setting view
Frequency band, Hz:
Channel:
Level, dBV/dBm:

Loaded 30,5 ohm


Graphics setting view
Frequency band, Hz:
Channel:
Level, dBV/dBm:

Loaded 62,4 ohm


Graphics setting view
Frequency band, Hz:
Channel:
Level, dBV/dBm:

Loaded 100 ohm


Graphics setting view
Frequency band, Hz:
Channel:
Level, dBV/dBm:

Loaded 198,9 ohm


Graphics setting view
Frequency band, Hz:
Channel:
Level, dBV/dBm:

Loaded 300 ohm


Graphics setting view
Frequency band, Hz:
Channel:
Level, dBV/dBm:

Loaded 763 ohm


Graphics setting view
Frequency band, Hz:
Channel:
Level, dBV/dBm:


Brief information
Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.

Spectrum of IMD CCIF vs Level the headphone amplifier FiiO X7 AM2

Not loaded


Graphics setting view
Channel:
Level, dBV:

Loaded 15,8 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 24,5 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 30,5 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 62,4 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 100 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 198,9 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 300 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 763 ohm


Graphics setting view
Channel:
Level, dBV/dBm:


Brief information
Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.

Spectrum of Multitone Distortion vs Level vs Load the headphone amplifier FiiO X7 AM2

Not loaded


Graphics setting view
Channel:
Level, dBV:
Type test:

Loaded 15,8 ohm


Graphics setting view
Channel:
Level, dBV/dBm:
Type test:

Loaded 24,5 ohm


Graphics setting view
Channel:
Level, dBV/dBm:
Type test:

Loaded 30,5 ohm


Graphics setting view
Channel:
Level, dBV/dBm:
Type test:

Loaded 62,4 ohm


Graphics setting view
Channel:
Level, dBV/dBm:
Type test:

Loaded 100 ohm


Graphics setting view
Channel:
Level, dBV/dBm:
Type test:

Loaded 198,9 ohm


Graphics setting view
Channel:
Level, dBV/dBm:
Type test:

Loaded 300 ohm


Graphics setting view
Channel:
Level, dBV/dBm:
Type test:

Loaded 763 ohm


Graphics setting view
Channel:
Level, dBV/dBm:
Type test:


Brief information
Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.

Spectrum of Noise Distortion vs Level vs Load the headphone amplifier FiiO X7 AM2

Not loaded


Graphics setting view
Channel:
Level, dBV:

Loaded 15,8 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 24,5 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 30,5 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 62,4 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 100 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 198,9 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 300 ohm


Graphics setting view
Channel:
Level, dBV/dBm:

Loaded 763 ohm


Graphics setting view
Channel:
Level, dBV/dBm:


Brief information
Translation of the description is not yet ready

Original text in Russian report. You can help with translation via the forum or feedback.


On-line comparison and selection services for FiiO X7 AM2

The automatic selection of the optimal AMP models from FiiO X7 AM2.
from the measured power parameters of the amplifying part and the measured parameters of the headphones for different purpose of use.



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