Measurement's report Questyle QP1R test and graphs - Reference Audio Analyzer

Questyle QP1R is available in reports and services. You are in a professional report.

Service and suite of tests

Information for entry level users

report for a newbie
(Headphone amplifier)

General recommendations

The automatic selection of the optimal AMP models

Information for all

Review

Comparison of on-line graphs


Reports / Questyle / QP1R / DAC Line Out / report for a pro

Test report Questyle QP1R (report for a pro)






Test report - general data of Questyle QP1R as Line Out mode

Frequency response


Graphics setting view
Frequency band, Hz:
Range, dB:
Type test:

Spectrum of Total Harmonic Distortion (THD)

Spectrum of Jitter


Spectrum of Multitone Distortion



General results
General results Questyle QP1R
Channel
Center/Summary
Variation in frequency response in band from 100 Hz to 10 kHz, dB
-0,02, 0,00
Max voltage output at 0 dBFS, VRMS
1,56
Max voltage output at 0 dBFS, dBV
3,88
Max voltage output at 0 dBFS, dBu
6,10
Harmonic distortion at 0,0 dBFS @ 1 kHz, dB
-90,9
Total harmonic distortion at 0,0 dBFS @ 1 kHz, %
0,002866
Harmonic distortion at -3,0 dBFS @ 1 kHz, dB
-94,4
Total harmonic distortion at -3,0 dBFS @ 1 kHz, %
0,001911

The table shows a most important technical characteristics of Questyle QP1R

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



Test conditions



Frequency response of Questyle QP1R as Line Out mode


Graphics setting view
Frequency band, Hz:
Range, dB:
Channel:
Type test:




Table of measured characteristics
Frequency response Questyle QP1R
Channel
Left
Right
Variation in frequency response in band from 100 Hz to 10 kHz, dB
-0,02, 0,00
-0,02, 0,00

Crosstalk of Questyle QP1R as Line Out mode


Graphics setting view
Range, dB:
Channel:




Table of measured characteristics
Crosstalk Questyle QP1R
Crosstalk at the frequency 100 Hz, dB
-102,1
Crosstalk at the frequency 1000 Hz, dB
-86,0
Crosstalk at the frequency 10000 Hz, dB
-83,2

THD vs output voltage of line out of Questyle QP1R as Line Out mode


Graphics setting view
Channel:
Type test:




Table of measured characteristics
THD vs output voltage of line out Questyle QP1R
Max voltage output at 0 dBFS, VRMS
1,56
Max voltage output at 0 dBFS, dBV
3,88
Max voltage output at 0 dBFS, dBu
6,10


Total Harmonic Distortion vs Level (dBFS) of Questyle QP1R as Line Out mode


Graphics setting view
Channel:
Type test:



Impulse response of Questyle QP1R as Line Out mode


Graphics setting view
Time, ms:
Channel:



Impulse Response Envelope (ETC - Energy Time Curve) of Questyle QP1R as Line Out mode


Graphics setting view
Time, ms:
Range, dB:
Channel:



Step response of Questyle QP1R as Line Out mode


Graphics setting view
Time, ms:
Channel:





Aliasing of Questyle QP1R as Line Out mode


Graphics setting view
Channel:
Type test:



Checking for correctness of reproduction signals depth more than 16-bit of Questyle QP1R as Line Out mode


Graphics setting view
Channel:
Type test:



Spectra of high resolution

Noise floor spectrum of Questyle QP1R (High resolution graph) as Line Out mode


Graphics setting view
Range, dB:
Channel:
Scale:



Spectrum of Total Harmonic Distortion (THD) of Questyle QP1R (High resolution graph) as Line Out mode


Graphics setting view
Range, dB:
Channel:
Level, dBFS:
Scale:




Table of measured characteristics
Harmonic distortion
Questyle QP1R
Harmonic distortion at 0,0 dBFS @ 1 kHz, dB
-90,9
Total harmonic distortion at 0,0 dBFS @ 1 kHz, %
0,002866
Harmonic distortion at -3,0 dBFS @ 1 kHz, dB
-94,4
Total harmonic distortion at -3,0 dBFS @ 1 kHz, %
0,001911




Table of measured characteristics
The levels of harmonics when applying signal 1 kHz 0 dBFS
Questyle QP1R
Harmonic, number
1
2
3
4
5
6
7
8
9
10
The level of harmonics, dB
0,0
-91,0
-105,2
-127,2
-116,8
-117,1
-124,5
-123,9
-140,1
-156,5
Harmonic, number
11
12
13
14
15
16
17
18
19
20
The level of harmonics, dB
-130,1
-132,5
-139,9
-136,8
-134,1
-139,6
-148,4
-139,2
-143,3
-140,3


The levels of harmonics when applying signal 1 kHz -3 dBFS
Questyle QP1R
Harmonic, number
1
2
3
4
5
6
7
8
9
10
The level of harmonics, dB
-3,0
-97,6
-112,4
-113,8
-127,7
-135,3
-140,0
-127,7
-149,9
-150,1
Harmonic, number
11
12
13
14
15
16
17
18
19
20
The level of harmonics, dB
-144,9
-137,1
-150,4
-144,7
-143,5
-145,7
-148,3
-150,0
-146,7
-142,6
The data in the tables correspond to by average value of left and right channels

Spectrum of Dynamic Range (-60 dBFS) of Questyle QP1R (High resolution graph) as Line Out mode


Graphics setting view
Range, dB:
Channel:
Scale:



Sine low ammplitude spectrum -90 dBFS of Questyle QP1R (High resolution graph) as Line Out mode


Graphics setting view
Range, dB:
Channel:
Scale:



Spectrum of Intermodulation Distortion (IMD) - SMPTE of Questyle QP1R (High resolution graph) as Line Out mode


Graphics setting view
Frequency band, Hz:
Range, dB:
Channel:
Level, dBFS:
Scale:



Spectrum of Intermodulation Distortion (IMD) - CCIF of Questyle QP1R (High resolution graph) as Line Out mode


Graphics setting view
Range, dB:
Channel:
Level, dBFS:



Spectrum of Multitone Distortion of Questyle QP1R (High resolution graph) as Line Out mode


Graphics setting view
Range, dB:
Channel:
Level, dBFS:
Type test:



Spectrum of Noise Distortion of Questyle QP1R (High resolution graph) as Line Out mode


Graphics setting view
Range, dB:
Channel:
Level, dBFS:



Spectrum of Jitter of Questyle QP1R (High resolution graph) as Line Out mode


Graphics setting view
Frequency band, Hz:
Range, dB:
Channel:
Type test:




Table of measured characteristics
The accuracy of the playback speed Questyle QP1R
Fundamental tone 11025 Hz, Hz
11025,0000
Variance from 11025 Hz, Hz
0,0000

Spectra vs Amplitude

Total Harmonic Distortion vs Level (dBFS) of Questyle QP1R as Line Out mode


Graphics setting view
Channel:
Level, dBFS:



Spectrum of IMD SMPTE vs Level (dBFS) of Questyle QP1R as Line Out mode


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



Spectrum of IMD CCIF vs Level (dBFS) of Questyle QP1R as Line Out mode


Graphics setting view
Channel:
Level, dBFS:



Spectrum of Multitone Distortion vs Level (dBFS) of Questyle QP1R as Line Out mode


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



Spectrum of Noise Distortion vs Level (dBFS) of Questyle QP1R as Line Out mode


Graphics setting view
Channel:
Level, dBFS:



Close

Measurements of Questyle QP1R were carried out by Roman Kuznetsov on the hardware-software complex RAA.

The Questyle QP1R test was conducted as a black box test, without regard to cost and prestige. This is the basic principle for making measurements, measurement reports and developing tests in RAA.



Kuznetsov Roman
Founder of RAA



Known by the nickname romanrex
Аuthor of articles iXBT.com




Questyle QP1R is available in reports and services. You are in a professional report.

Service and suite of tests

Information for entry level users

report for a newbie
(Headphone amplifier)

General recommendations

The automatic selection of the optimal AMP models

Information for all

Review

Comparison of on-line graphs






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