RightMark Audio Analyzer test: comparison

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
Comparison of M³ driving 330Ω, 33Ω and 8Ω loads

Summary

Test	M³ 330	M³ 33	M³ 8
Frequency response (from 40 Hz to 15 kHz), dB:	+0.04, -0.05	+0.04, -0.05	+0.04, -0.05
Noise level, dB (A):	-97.4	-97.4	-97.5
Dynamic range, dB (A):	97.1	96.9	97.1
THD, %:	0.0009	0.0009	0.0011
IMD + Noise, %:	0.0052	0.0051	0.0056
Stereo crosstalk, dB:	-94.2	-95.4	-93.8

Frequency response

Spectrum graph

Noise level

Spectrum graph

Dynamic range

Spectrum graph

THD + Noise (at -3 dB FS)

Spectrum graph

Intermodulation distortion

Spectrum graph

Stereo crosstalk

Spectrum graph

This report was generated by RightMark Audio Analyzer 5.5