digital (I assume) simple: one in and one out with a true bypass. optical sensor, the top silent and accurate at the time.
used with a low: nice.

UTILIZATION

manual without interest, two knobs to fiddle with, we can no longer simple.

SOUND QUALITY

to be used for (too) long an old VOX 70 years, there's no picture: it does not blow, it does not crackles is precise and the effect is readily assayable.

OVERALL OPINION

very good quality / price ratio, it does its job properly and that's all we asked ...