Yamaha CS80

--- In yamahacs80@yahoogroups.com, gavin curtis <gavincurtis@...> wrote:

> The 4558 (dual op amps) are extremely reliable.

I can't speak for Yamaha's 4558s, but I do a lot of work on Lexicon 224 reverbs which use RC4558s throughout their analogue circuitry and regularly have to change failed devices. Maybe Lexicon push them beyond where they were intended to go...

Cheers,

Steve L.