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Capacitor between DC amp and preamp?

Posted by KanedaK on February 29, 2012 at 04:57:44:
Hi all,

don't know if it's the right forum to post this but...

I use a DIY Kaneda preamplifier (not built by me, I'm totally unable to build anything at this point) and a Technics SE-A5 power amp. Both circuits are pure DC and that leaves me a little worried because I don't really trust the preamp's reliability... The power amp is supposed to cut if DC is detected but I don't really trust that either (amp is from 1981).

I've been reading advices on the internet to put some caps at the preamp's output. Granted, I could use the amplifier "normal" input (as opposed to the DC input, there's a choice of both) but I'd prefer to chose a great quality output cap rather than use the amp's probably rather mundane entrance caps.

Question is: I have no idea wich type and wich value I'm supposed to use...

thanks folks!