Galaxy Audio CM-140
A calibrated SPL meter with A/C weighting and fast/slow response — the reference for checking the decibel meter and loudness targets.
Used by: Decibel meter · Loudness meter
Budget$24
Ultra-compact USB-C DAC with 0.004% THD+N and 32-bit decoding for clean playback and distortion testing, free of motherboard noise.
| Outputs | 3.5mm SE + 4.4mm BAL |
|---|---|
| Decoding | PCM 32bit/384kHz, DSD128 |
| THD+N | 0.004% @ 32 Ω |
A calibrated SPL meter with A/C weighting and fast/slow response — the reference for checking the decibel meter and loudness targets.
Used by: Decibel meter · Loudness meter
A calibrated, phantom-powered measurement mic that pairs with any interface for spectrum and distortion work.
Used by: Room acoustics · Spectrum analyzer · Microphone test
Electrical and acoustic measurement in one box: T/S parameters, impedance sweeps, and polarity checks for speakers and subs.
Used by: Speaker test · Subwoofer test · THD test