Phono-preamp with a built-in headphone output

JammyBStard · 4th November 2011, 09:22 AM

I've currently got a Le Pacific I built in my main system and I'm very happy with the sound I'm getting from the 2SK170's. a bit prone to microphonics but all round a lovely sound.

I'm going to build a similar battery powered version which I'd like to couple in the same housing with a headphone amplifier. This would be mainly be for portibility (where-ever I can find a quiet room!!)

So I thought I'd basically couple a Le Pacific to a CMOY in a housing. both tried and tested designes.

Problem is the Le Pacific is a single supply (24v) design and the Cmoy is a (+/-) design.

I think it should be possible to run the CMOY of a single supply I'm just not sure how (I'm thinking of biasing the input perhaps). any help getting started with that please?

4th November 2011, 09:22 AM	#1
JammyBStard diyAudio Member Join Date: Feb 2008 Location: York, UK	Phono-preamp with a built-in headphone output I've currently got a Le Pacific I built in my main system and I'm very happy with the sound I'm getting from the 2SK170's. a bit prone to microphonics but all round a lovely sound. I'm going to build a similar battery powered version which I'd like to couple in the same housing with a headphone amplifier. This would be mainly be for portibility (where-ever I can find a quiet room!!) So I thought I'd basically couple a Le Pacific to a CMOY in a housing. both tried and tested designes. Problem is the Le Pacific is a single supply (24v) design and the Cmoy is a (+/-) design. I think it should be possible to run the CMOY of a single supply I'm just not sure how (I'm thinking of biasing the input perhaps). any help getting started with that please?

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