FATFreq Grand Maestro - AO128 Hi on Measurement's report - Reference Audio Analyzer

Reports / FATFreq / Grand Maestro - AO128 / Hi on - report for a pro

FATFreq Grand Maestro - AO128: Hi on (report for a pro)

After testing in the benchmark mode in the Reference Audio Analyzer software, the data is added to the online database of the RAA website.

You can view the test results on the comparison pages and summary reports for beginners and professionals. You can go to the desired report or comparison/selection service through the menu on this page. Additionally, you can go to the comparison pages from any graph in this report and add other tested products for direct comparison.



This is a summary report of headphones for professionals.

You can additionally look for FATFreq Grand Maestro - AO128 Hi on






Sensitivity average in band from 100 Hz - 10 kHz89.3dB/V SPL
71.9dB/mW SPL
Impedance average in band from 40 Hz - 15 kHz18.3ohm
For 90 dB SPL, a voltage is required0.7dBV
1.090VRMS
Taking into account the peak factor of 9 dB for the music signal9.7 dBV
3.071VRMS
Measurements were performed on the stands:SIEC, IEC711 Coupler


Frequency response FATFreq Grand Maestro - AO128 Hi on headphone

АЧХ - Стенд: SIEC

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Channel

Range

Frequency band

Smoothing

АЧХ - Стенд: IEC711 Coupler

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Range

Frequency band

Smoothing


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Impedance / Electric phase FATFreq Grand Maestro - AO128 Hi on headphone

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Channel

Frequency band


Channel:LeftRight
Impedance average in band from 40 Hz - 15 kHz18.3 18.3ohm
Resistance at 1 kHz11.7 11.7ohm
Resistance at 500 Hz15.9 16.0ohm
The minimum value in band from 40 Hz - 15 kHz8.3 8.3ohm
The maximum value in band from 40 Hz - 15 kHz36.2 36.0ohm


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Range

Frequency band


Channel:LeftRight
Phase deviation is the average in the range 40 Hz - 15 kHz-21.6 -21.5°
Phase at 1 kHz-26.1 -26.0°
Phase at 500 Hz-35.8 -35.6°
The minimum value in band from 40 Hz - 15 kHz-36.9 -36.6°
The maximum value in band from 40 Hz - 15 kHz-8.5 -8.3°



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Frequency response and sensitivity FATFreq Grand Maestro - AO128 Hi on headphone

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Frequency band

Smoothing


Channel:LeftRight
Sensitivity average in band from 100 Hz - 10 kHz88.2 89.8dB/V SPL
Sensitivity average in band from 100 Hz - 10 kHz70.872.4 dB/mW SPL
Sensitivity at 1 kHz74.081.7dB/V SPL
Sensitivity at 500 Hz81.783.2dB/V SPL


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Type of chart

SPL


SPLVoltageCurrentPower
dB SPLdBVVRMSdB(mA)mAdBmmW
60-29.30.0345.51.9-11.90.065
70-19.30.1115.56.0-1.90.65
80-9.30.3425.518.88.16.5
900.741.135.559.618.164.9
10010.73.445.518828.1649
11020.710.955.559638.16492
12030.734.565.5188448.164921
13040.710975.5595958.1649213



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Impulse response FATFreq Grand Maestro - AO128 Hi on headphone

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Stand

Duration for impulse

Waveforms


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Frequency of square wave


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Динамический спектр FATFreq Grand Maestro - AO128 Hi on headphone

Ваттерфол

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Frequency band

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Затухание

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Other summary reports for FATFreq Grand Maestro - AO128 Hi on headphone

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More detailed

Measurements of FATFreq Grand Maestro - AO128 Hi on were carried out by Roman Kuznetsov on the hardware-software complex RAA.

The FATFreq Grand Maestro - AO128 Hi on 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.

I believe that it is important to do not make an absolute assessment of the device, but an aggregate assessment when working together with a source amplifier and taking into account external factors. This allows you to effectively reveal the potential of the entire set of devices or to make a more optimal choice of components.




Kuznetsov Roman
Founder of RAA



Known by the nickname romanrex
Аuthor of articles iXBT.com



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