Measurement's report Musatoff HA-8 Hi - Reference Audio Analyzer

Reports / Musatoff / HA-8 / Hi / A set of device tests as a headphone amplifier - report for a pro

Test report Musatoff HA-8: Hi (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 Musatoff HA-8 Hi

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 Musatoff HA-8 (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 kHz1.1ohm
Voltage:
Pure or equal class A / Maximum or before clipping level
18.3/19.3dBV
8.2/9.2VRMS
Current:
Pure or equal class A / Maximum or before clipping level
32.2/44.3dB(mA)
40.7/164.0mA






Frequency response Musatoff HA-8 Hi (as headphone amplifier)

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Graphics setting view
Channel

Range

Channel:LeftRight
Variation in frequency response in band from 40 Hz - 15 kHz -0.0, +0.0-0.0, +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 Musatoff HA-8 Hi (as headphone amplifier)

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Channel

Channel:LeftRight
Impedance average in band from 40 Hz - 15 kHz1.0 1.1ohm
The minimum value in band from 40 Hz - 15 kHz1.0 1.1ohm
The maximum value in band from 40 Hz - 15 kHz1.0 1.1ohm


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 Musatoff HA-8 Hi (as headphone amplifier)

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Channel

Range

Load

Channel:LeftRight
Crosstalk @ 1 kHz @ 15.8 ohm -60.2 -59.0dB
Crosstalk @ 1 kHz @ 24.5 ohm -63.6 -62.3dB
Crosstalk @ 1 kHz @ 30.5 ohm -65.4 -64.2dB
Crosstalk @ 1 kHz @ 62.4 ohm -71.1 -70.3dB
Crosstalk @ 1 kHz @ 100.0 ohm -74.6 -74.0dB
Crosstalk @ 1 kHz @ 198.9 ohm -79.7 -79.6dB
Crosstalk @ 1 kHz @ 300.0 ohm -82.1 -82.6dB
Crosstalk @ 1 kHz @ 763.0 ohm -85.9 -88.9dB
Crosstalk @ 1 kHz @ Not loaded-90.3 -94.3dB


Brief information

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



Crosstalk Phase Musatoff HA-8 Hi (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 Musatoff HA-8 Hi 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 + Musatoff HA-8 Hi 0.00.0dB
HP 32 Ω + Musatoff HA-8 Hi 0.00.0dB
HP 64 Ω + Musatoff HA-8 Hi 0.00.0dB
HP 126 Ω + Musatoff HA-8 Hi 0.00.0dB
HP 256 Ω + Musatoff HA-8 Hi 0.00.0dB
HP 512 Ω + Musatoff HA-8 Hi 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 Musatoff HA-8 Hi 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 + Musatoff HA-8 Hi 0.00.0dB
Grado GH4 Limited Edition + Musatoff HA-8 Hi 0.20.2dB


Brief information

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



Frequency response Musatoff HA-8 Hi 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 + Musatoff HA-8 Hi 0.00.0dB
Campfire Audio Andromeda + Musatoff HA-8 Hi 1.81.8dB
Fearless Audio S8F Freedom + Musatoff HA-8 Hi 1.51.4dB


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 Musatoff HA-8 Hi

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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 Musatoff HA-8 Hi

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Type of chart

RAW coordinates

Power characteristics of the Voltage Current
dBVVRMSdB(mA)mA
Equivalent class A 18.38.232.240.7
Equivalent class AB 18.38.236.063.1
Equivalent class B 19.39.237.474.1
Maximum mode 19.39.244.3164.0


Volume Control TypeAnalog
Optimal range of volume control36.0dB


Comparison Musatoff HA-8 Hi and another amplifiers by loudness (Volume Level)

Main characteristics of the Musatoff HA-8 Hi

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 Musatoff HA-8 Hi

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