Measurement's report Questyle QP1R L-Gain - Reference Audio Analyzer

Reports / Questyle / QP1R / L-Gain / A set of device tests as a headphone amplifier - report for a pro

Test report Questyle QP1R: L-Gain (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 Questyle QP1R L-Gain

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".

Test report - general data Questyle QP1R (as headphone amplifier)

Frequency response, Impedance and Frequency response with standard headphones

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Voltage levels from the load at the output of the amplifier

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Average value of impedance band in 40 Hz - 15 kHz0.0ohm
Voltage:
Pure or equal class A / Maximum or before clipping level
0.0/0.0dBV
1.0/1.0VRMS
Current:
Pure or equal class A / Maximum or before clipping level
0.0/0.0dB(mA)
1.0/1.0mA






Crosstalk Questyle QP1R L-Gain (as headphone amplifier)

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Channel

Range

Load

Channel:LeftRight
Crosstalk @ 1 kHz @ 15.8 ohm -63.8 -63.6dB
Crosstalk @ 1 kHz @ Not loaded-100.8 -96.3dB


Brief information

Clicking on the graph will take you to the comparison page of different headphone models with advanced graph display settings.



  

THD vs load vs output voltage Questyle QP1R L-Gain

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Graphics setting view
Channel

Load

Harmonic, number

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Channel

Load

Harmonic, number

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Graphics setting view
Channel

Load

Brief information

Clicking on the graph will take you to the comparison page of different headphone models with advanced graph display settings.



Maximum voltage output level vs load Questyle QP1R L-Gain

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Graphics setting view
Type of chart

RAW coordinates

Power characteristics of the Voltage Current
dBVVRMSdB(mA)mA
Equivalent class A 0.01.00.01.0
Equivalent class AB 0.01.00.01.0
Equivalent class B 0.01.00.01.0
Maximum mode 0.01.00.01.0


Volume Control TypeAnalog
Optimal range of volume control36.0dB


Comparison Questyle QP1R L-Gain and another amplifiers by loudness (Volume Level)

Main characteristics of the Questyle QP1R L-Gain

Brief information

Clicking on the graph will take you to the comparison page of different headphone models with advanced graph display settings.



Maximum voltage output level vs load Questyle QP1R L-Gain

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Graphics setting view
Type of chart

RAW coordinates

Maximum Amplifier Voltage Level
Load Pure or equal class AOptimal or equal class ABHard or equal class BMax, before clipping
dBVVRMSdBVVRMSdBVVRMSdBVVRMS



Maximum level of amplifier current
Load Pure or equal class AOptimal or equal class ABHard or equal class BMax, before clipping
dB(mA)mAdB(mA)mAdB(mA)mAdB(mA)mA


Power
Load Pure or equal class AOptimal or equal class ABHard or equal class BMax, before clipping
dBmmWdBmmWdBmmWdBmmW



Clicking on the graph will take you to the comparison page of different headphone models with advanced graph display settings.

Brief information


   

Spectrum of Total Harmonic Distortion vs Level Questyle QP1R L-Gain (as headphone amplifier)

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Graphics setting view
Channel

Level
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Graphics setting view
Channel

Level
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Channel

Shift

dBm

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