On Mon, 08 May 2006 19:52:50 -0400, you wrote: >alan smith wrote: >> OK audio guys..... >> >> I have an amplifier that can deliver up to 50W of audio per channel, and need to switch on and off differnent channels outputs depending on some control inputs. I was thinking of relays but that rather a large real estate usage, so wondering about just using some of those small solid state photoMOS relays, like those used in telco applications. >> >> Its a one-off project, so production costs aren't of a real issue other than I do want to keep costs down of course. In which case relays are probably the answer. You probably want gold-plated contacts for this type of application to avoid odd things happenning at low levels. Shouldn't be too expensive - really not worth trying to be clever for a 1-off. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist