Some 6 years plus ago when very busy I sold my Rega deck, quad amp & Cd system and bought a Sonos speakers for two small room and felt resonably happy. Recently however I moved house and inherited a 30+ year old Hi Fi system with NAD series 20 amp, marantz CD-40 and kef speakers. Out of interest I tried the system (albeit in a much bigger room than the sonos system was in) and was blown away by the sound in terms of clarity, depth of sound and overall quality of listening experience. Unfortunately the amp produces some intermittent interference and loss of sound but am now convinced I need to invest in Hi Fi separates again, starting with a new amp. I suspect it is financially viable to repair the amp but do wonder whether anyone can usmake use such old equipment or does it just go to the tip.