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Title: mixing preamp and power amps sections from different amps Post by: beatnik on March 06, 2012, 10:03:12 AM Hi guys, It's my first post here! I'm kinda new to valve amplification but I'm starting right now.
I'd like to build a system extremely versatile, mainly for recording purposes. I need flexibility with the wattage of the power amp, without losing the opportunity of a good sounding pre. For example, I'd like to use the sound of the JCM preamp, in a Champ power amp!! I think about using a buffer like the c-lator, which could match the impedances and levels between pre and power sections on different amps. Do you think that this could work? Many thanks in advance Title: Re: mixing preamp and power amps sections from different amps Post by: wyatt on March 06, 2012, 09:27:49 PM The JCM 800's cathode follower stage (V2B) pretty much takes care of any voltage/impedance issue you would have matching it to a power amp.
So, in this image, the preamp is on top.... http://www.drtube.com/schematics/marshall/jcm800pr.gif You can take the signal coming of the 'B" at right of that preamp schematic and run that into whatever power amp you want run it into. |