Up for sale is a single Crest Audio 4601 Amplifier.
This amp was pulled out of a working install and is guaranteed to not be DOA.
More detailed info here
https://www.yumpu.com/en/document/view/2350744/4601-power-amplifier-crest-audio
This is the last one we have.
Pick-up also available from Pasadena 91105. 30 day returns if not as described.