Loch Eite LDR Hi-Fi Attenuator

LDR Optocoupler Hi-Fi Attenuator - Technical Data & Laboratory Tests

THD & Noise @ 4 kHz
Screenshot 2019-06-15 at 10.20.24 am.png

THD & noise at maximum volume for 4 kHz input, bear in mind that LDRs cannot achieve a full 0 dB attenuation (lossless) because the LDR possess a minimal resistance even when fully lit, in this case, the maximum volume is of -1.9 dB. The noise is below the 100-105 dB of the testing device, while the effective THD is below 0.02 %