Audio amp 400 mW specially for bad/weak signal to noise audio files
This is not a normal audio amplifier, though it can be used as such. It was specially made to make files/audio recordings (e.g. magnetic tape cassettes or so) very good audible at a 400 mW loudspeaker output level. When recorded (again) with a high quality low noise microphone in an audio dead chamber you can get rid of disturbing noise at the background from old radio recordings/cassettesor whatever audio recordings. More audio in my book on the Lulu website: "Schematics 2, audio amplifiers and loudspeaker boxes". This book is also availabe in bookshops/resellers or Amazon. When you download it from "Cloudflare" (San Fransisco) or from a Russian website (Myfreemediacloud) it can contain viruses or malware.
