Measurement's report theBit OPUS 2 Balance - Reference Audio Analyzer

Reports / theBit / OPUS 2 / Balance / A set of device tests as a headphone amplifier - report for a pro

Test report theBit OPUS 2: Balance (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 theBit OPUS 2 Balance

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 theBit OPUS 2 (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 kHz4.5ohm
Voltage:
Pure or equal class A / Maximum or before clipping level
7.5/7.5dBV
2.4/2.4VRMS
Current:
Pure or equal class A / Maximum or before clipping level
11.6/22.9dB(mA)
3.8/14.0mA






Frequency response theBit OPUS 2 Balance (as headphone amplifier)

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Channel

Range

Channel:LeftRight
Variation in frequency response in band from 40 Hz - 15 kHz -0.1, +0.0-0.1, +0.0dB


Brief information

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



Impedance theBit OPUS 2 Balance (as headphone amplifier)

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Channel

Channel:LeftRight
Impedance average in band from 40 Hz - 15 kHz4.3 4.6ohm
The minimum value in band from 40 Hz - 15 kHz4.3 4.6ohm
The maximum value in band from 40 Hz - 15 kHz4.3 4.6ohm


Comparison of basic characteristics AMPs

Brief information

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



Crosstalk theBit OPUS 2 Balance (as headphone amplifier)

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Channel

Range

Load

Channel:LeftRight
Crosstalk @ 1 kHz @ 15.8 ohm -86.0 -85.6dB
Crosstalk @ 1 kHz @ 24.5 ohm -90.8 -90.2dB
Crosstalk @ 1 kHz @ 30.5 ohm -90.7 -88.8dB
Crosstalk @ 1 kHz @ 62.4 ohm -86.8 -83.4dB
Crosstalk @ 1 kHz @ 100.0 ohm -85.9 -90.6dB
Crosstalk @ 1 kHz @ 198.9 ohm -89.4 -90.4dB
Crosstalk @ 1 kHz @ 300.0 ohm -88.1 -85.7dB
Crosstalk @ 1 kHz @ 763.0 ohm -88.5 -86.3dB
Crosstalk @ 1 kHz @ Not loaded-88.0 -90.2dB


Brief information

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



Crosstalk Phase theBit OPUS 2 Balance (as headphone amplifier)

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Channel

Load



Brief information

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



Frequency response theBit OPUS 2 Balance with resistive load

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Channel

Range

Frequency response of amplifier with resistive load @ 40 Hz - 15 kHz
Channel:LeftRight
HP 16 Ω + theBit OPUS 2 Balance 0.00.0dB
HP 32 Ω + theBit OPUS 2 Balance 0.00.0dB
HP 64 Ω + theBit OPUS 2 Balance 0.00.0dB
HP 126 Ω + theBit OPUS 2 Balance 0.00.0dB
HP 256 Ω + theBit OPUS 2 Balance 0.00.0dB
HP 512 Ω + theBit OPUS 2 Balance 0.00.0dB


Brief information

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



Frequency response theBit OPUS 2 Balance loaded dynamic headphone type

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Channel

Range

Frequency response of amplifier loaded dynamic headphone type @ 40 Hz - 15 kHz
Channel:LeftRight
HP 10000 Ω + theBit OPUS 2 Balance 0.00.0dB
Grado GH4 Limited Edition + theBit OPUS 2 Balance 0.70.7dB


Brief information

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



Frequency response theBit OPUS 2 Balance loaded type balance armature headphone type

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Channel

Range

Frequency response of amplifier loaded type balance armature headphone type @ 40 Hz - 15 kHz
Channel:LeftRight
HP 10000 Ω + theBit OPUS 2 Balance 0.00.0dB
Campfire Audio Andromeda + theBit OPUS 2 Balance 5.45.6dB
Fearless Audio S8F Freedom + theBit OPUS 2 Balance 4.44.2dB


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 theBit OPUS 2 Balance

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Channel

Load

Harmonic, number

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Channel

Load

Harmonic, number

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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 theBit OPUS 2 Balance

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Type of chart

RAW coordinates

Power characteristics of the Voltage Current
dBVVRMSdB(mA)mA
Equivalent class A 7.52.411.63.8
Equivalent class AB 7.52.417.17.1
Equivalent class B 7.52.420.210.3
Maximum mode 7.52.422.914.0


Volume Control TypeDigital
Optimal range of volume control36.0dB
Signal/Noise / Maximum106.0/7.5dB/dBV
Signal/Noise @ -14.9 dBV 32 ohm (1 mW)84.69dB
Signal/Noise @ -5.2 dBV 300 ohm (1 mW)93.39dB


Comparison theBit OPUS 2 Balance and another amplifiers by loudness (Volume Level)

Main characteristics of the theBit OPUS 2 Balance

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 theBit OPUS 2 Balance

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