Measurement's report Ambient Acoustics MAD4 Universal - Reference Audio Analyzer

Reports / Ambient Acoustics / MAD4 / Universal - report for a pro

Ambient Acoustics MAD4: Universal (report for a pro)

Test report - general data Ambient Acoustics MAD4 headphone

Frequency response, Impedance, Frequency response with standard AMPs

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Perception of headphone frequency response curves of equal loudness ISO 226-2009

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Sensitivity average in band from 100 Hz - 10 kHz134.7dB/V SPL
115.3dB/mW SPL
Impedance average in band from 40 Hz - 15 kHz11.4ohm
For 90 dB SPL, a voltage is required-44.7dBV
0.006VRMS
Taking into account the peak factor of 9 dB for the music signal-35.7 dBV
0.016VRMS
Measurements were performed on the stand:SIEC






Frequency response and sensitivity headphones Ambient Acoustics MAD4 Universal headphone

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Channel

Frequency band

Channel:LeftRight
Sensitivity average in band from 100 Hz - 10 kHz134.5 134.9dB/V SPL
Sensitivity average in band from 100 Hz - 10 kHz115.1115.5 dB/mW SPL
Sensitivity at 1 kHz134.0134.2dB/V SPL
Sensitivity at 500 Hz135.3135.5dB/mW SPL


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Frequency response of headphone Ambient Acoustics MAD4 Universal headphone

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Channel

Range

Frequency band

Smoothing

Channel:LeftRight
Variation in frequency response in band from 100 Hz - 10 kHz -13.2, +3.6-12.5, +3.4dB


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Impedance Ambient Acoustics MAD4 Universal headphone

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Channel

Frequency band

Channel:LeftRight
Impedance average in band from 40 Hz - 15 kHz11.4 11.4ohm
Resistance at 1 kHz11.5 11.5ohm
Resistance at 500 Hz10.8 10.8ohm
The minimum value in band from 40 Hz - 15 kHz9.8 9.7ohm
The maximum value in band from 40 Hz - 15 kHz14.3 14.3ohm


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Electric phase Ambient Acoustics MAD4 Universal headphone

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Channel

Range

Frequency band

Channel:LeftRight
Phase deviation is the average in the range 40 Hz - 15 kHz5.3 5.4degree
Phase at 1 kHz6.9 6.9degree
Phase at 500 Hz6.8 6.9degree
The minimum value in band from 40 Hz - 15 kHz1.0 1.1degree
The maximum value in band from 40 Hz - 15 kHz9.2 9.0degree




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Perception of headphone frequency response curves of equal loudness ISO 226-2009

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Channel

Range

Variation in frequency response in band from 30 Hz - 12 kHz
Channel:LeftRight
Deviation -36.0 dB-15.0, +8.2 (23.2)-14.3, +8.6 (22.9)dB
Deviation -24.0 dB-14.8, +6.2 (21.0)-14.0, +6.6 (20.7)dB
Deviation -12.0 dB-14.5, +4.3 (18.7)-13.7, +4.7 (18.4)dB
Deviation 0.0 dB-14.2, +4.1 (18.3)-13.5, +3.9 (17.3)dB
Deviation 12.0 dB-13.9, +7.9 (21.8)-13.8, +7.3 (21.2)dB
Deviation 24.0 dB-14.2, +12.0 (26.3)-15.5, +11.5 (27.0)dB
Deviation 36.0 dB-15.0, +16.1 (31.2)-17.0, +15.6 (32.6)dB

Variation in frequency response in band from 40 Hz - 1 kHz
Channel:LeftRight
Deviation -36.0 dB-15.0, +8.2 (23.2)-14.3, +8.6 (22.9)dB
Deviation -24.0 dB-14.8, +6.2 (21.0)-14.0, +6.6 (20.7)dB
Deviation -12.0 dB-14.5, +4.3 (18.7)-13.7, +4.7 (18.4)dB
Deviation 0.0 dB-14.2, +4.1 (18.3)-13.5, +3.9 (17.3)dB
Deviation 12.0 dB-13.9, +7.9 (21.8)-13.8, +7.3 (21.2)dB
Deviation 24.0 dB-14.2, +12.0 (26.3)-15.5, +11.5 (27.0)dB
Deviation 36.0 dB-15.0, +16.1 (31.2)-17.0, +15.6 (32.6)dB


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Frequency response Ambient Acoustics MAD4 Universal headphone when connected to amplifiers with constant output impedance

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Channel

Range

Frequency response

Variation in frequency response in band from 100 Hz - 10 kHz
Channel:LeftRight
0.1 ohm @ Ambient Acoustics MAD4 Universal + Topping EX5 Hi Gain -12.7, +4.1-11.7, +4.2dB
10.1 ohm @ Ambient Acoustics MAD4 Universal + ASUS Essence One -11.9, +3.4-11.1, +3.6dB
22.1 ohm @ Ambient Acoustics MAD4 Universal + E-MU 1616m -11.6, +3.1-10.9, +3.4dB
50.0 ohm @ Ambient Acoustics MAD4 Universal + Behringer MicroAmp Ha400 -15.5, +2.2-14.4, +2.4dB
98.7 ohm @ Ambient Acoustics MAD4 Universal + ASUS STRIX RAID PRO Hi -11.3, +2.8-10.6, +3.5dB
298.5 ohm @ Ambient Acoustics MAD4 Universal + Gigabyte GA-A75-UD4H Realtek ALC889A -11.1, +2.9-10.5, +3.5dB

Variation in frequency response with amplifiers with constant output resistance @ 100 Hz - 10 kHz
Channel:LeftRight
0.1 ~ 0 ohm @ Ambient Acoustics MAD4 Universal + Topping EX5 Hi Gain 0.10.0dB
10.1 ~ 0 ohm @ Ambient Acoustics MAD4 Universal + ASUS Essence One 5.55.4dB
22.1 ~ 0 ohm @ Ambient Acoustics MAD4 Universal + E-MU 1616m 9.39.3dB
50.0 ~ 0 ohm @ Ambient Acoustics MAD4 Universal + Behringer MicroAmp Ha400 14.114.2dB
98.7 ~ 0 ohm @ Ambient Acoustics MAD4 Universal + ASUS STRIX RAID PRO Hi 19.619.6dB
298.5 ~ 0 ohm @ Ambient Acoustics MAD4 Universal + Gigabyte GA-A75-UD4H Realtek ALC889A 28.628.5dB


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Frequency response Ambient Acoustics MAD4 Universal headphone when connected to an amplifier with zero output impedance and raising of output impedanse in low frequencies

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Channel

Range

Frequency response

Variation in frequency response in band from 100 Hz - 10 kHz
Channel:LeftRight
Ambient Acoustics MAD4 Universal + Topping EX5 Hi Gain -12.7, +4.1-11.7, +4.2dB
Ambient Acoustics MAD4 Universal + Colorful Colorfly C4 Pro Jack 6.3 -12.6, +3.1-11.7, +3.2dB

Deviation of frequency response @ 40 Hz
Channel:LeftRight
Ambient Acoustics MAD4 Universal + Topping EX5 Hi Gain 0.10.0dB
Ambient Acoustics MAD4 Universal + Colorful Colorfly C4 Pro Jack 6.3 5.55.4dB


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Impulse response Ambient Acoustics MAD4 Universal headphone

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Channel

Duration for impulse, envelope and step responses

Waveforms

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Square wave Ambient Acoustics MAD4 Universal headphone

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