The β22 Stereo Amplifier

RightMark Audio Analyzer test

Testing chain: M-Audio Firewire Audiophile -> β22 -> M-Audio Firewire Audiophile
Sampling mode: 32-bit, 96 kHz
33Ω load


Summary

Frequency response (from 40 Hz to 15 kHz), dB: +0.05, -0.05Excellent
Noise level, dB (A): -90.3Very good
Dynamic range, dB (A): 90.1Very good
THD, %: 0.0011Excellent
IMD, %: 0.0073Excellent
Stereo crosstalk, dB: -85.7Excellent
IMD at 10 kHz, %: 0.0072Excellent

General performance: Very good




Frequency response

Spectrum graph


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




Noise level

Spectrum graph


Parameter Left Right
RMS power, dB:-89.1-88.8
RMS power (A-weighted), dB:-90.3-90.0
Peak level, dB FS:-70.6-70.2
DC offset, %:-0.00-0.00




Dynamic range

Spectrum graph


Parameter Left Right
Dynamic range, dB:+89.0+88.8
Dynamic range (A-weighted), dB:+90.4+89.9
DC offset, %:-0.00-0.00




THD + Noise (at -3 dB FS)

Spectrum graph


Parameter Left Right
THD, %:0.00110.0013
THD + Noise, %:0.00520.0053
THD + Noise (A-weighted), %:0.00360.0037




Intermodulation distortion

Spectrum graph


Parameter Left Right
IMD + Noise, %:0.00730.0073
IMD + Noise (A-weighted), %:0.00540.0054




Stereo crosstalk

Spectrum graph


Parameter L <- R L -> R
Crosstalk at 100 Hz, dB:-78-78
Crosstalk at 1 kHz, dB:-84-85
Crosstalk at 10 kHz, dB:-81-86




IMD (swept tones)

Spectrum graph


Parameter Left Right
IMD + Noise at 5 kHz, %:0.00720.0073
IMD + Noise at 10 kHz, %:0.00730.0074
IMD + Noise at 15 kHz, %:0.00710.0073

This report was generated by RightMark Audio Analyzer 5.5