The M³ Stereo Headphone Amplifier

RightMark Audio Analyzer test

Testing chain: M-Audio Firewire Audiophile -> M³ -> M-Audio Firewire Audiophile
Sampling mode: 32-bit, 96 kHz
33Ω load


Summary

Frequency response (from 40 Hz to 15 kHz), dB: +0.04, -0.05Excellent
Noise level, dB (A): -97.4Excellent
Dynamic range, dB (A): 96.9Excellent
THD, %: 0.0009Excellent
IMD, %: 0.0051Excellent
Stereo crosstalk, dB: -95.4Excellent
IMD at 10 kHz, %: 0.0057Excellent

General performance: Excellent




Frequency response

Spectrum graph


Frequency range Response
From 20 Hz to 20 kHz, dB-0.11, +0.04
From 40 Hz to 15 kHz, dB-0.05, +0.04




Noise level

Spectrum graph


Parameter Left Right
RMS power, dB:-90.3-90.4
RMS power (A-weighted), dB:-97.4-97.2
Peak level, dB FS:-72.4-72.8
DC offset, %:-0.00-0.00




Dynamic range

Spectrum graph


Parameter Left Right
Dynamic range, dB:+92.7+92.6
Dynamic range (A-weighted), dB:+97.3+96.9
DC offset, %:-0.00-0.00




THD + Noise (at -3 dB FS)

Spectrum graph


Parameter Left Right
THD, %:0.00090.0011
THD + Noise, %:0.00490.0049
THD + Noise (A-weighted), %:0.00270.0029




Intermodulation distortion

Spectrum graph


Parameter Left Right
IMD + Noise, %:0.00510.0054
IMD + Noise (A-weighted), %:0.00310.0032




Stereo crosstalk

Spectrum graph


Parameter L <- R L -> R
Crosstalk at 100 Hz, dB:-89-86
Crosstalk at 1 kHz, dB:-94-94
Crosstalk at 10 kHz, dB:-92-91




IMD (swept tones)

Spectrum graph


Parameter Left Right
IMD + Noise at 5 kHz, %:0.00570.0058
IMD + Noise at 10 kHz, %:0.00570.0058
IMD + Noise at 15 kHz, %:0.00580.0059

This report was generated by RightMark Audio Analyzer 5.5