KLH BURWEN RESEARCH DNF 1201A DYNAMIC NOISE FILTER - Hiss filter - Adjustable

KLH BURWEN RESEARCH DNF 1201A DYNAMIC NOISE FILTER - Hiss filter - Fully Adjustable. In working condition. Some minor scratches here and there. A classic hi frequency hiss filter / remover with some smarts - hence DYNAMIC. Reduces noise without destroying high frequency content of audio. Goes in the audio chain between whatever you want to remove hiss or hi frequency noise from (historically a tape deck unit, but can be from any audio source) and your amplifier. Cutoff frequency fully adjustable. Not a museum piece but a decent working example. See my other items up for auction. other search terms: reel to reel cassette am fm audiophile stereo recording studio instrument scratch pop