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Author Topic: Homemade hybrid
magnetmons-
ter

Posts: 16
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Post Homemade hybrid
on: February 13, 2013, 06:46
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My old trusty Marshall power amp recently breathed its last, and I'm wondering whether it's viable to cannibalise my older Carlsbro for its power stage?!!

I'm thinking (if possible) to re-size the combo cab into a head, and rip out the pramp side of things.

I'm a bit of a noob when it comes to amps, and am I maybe being presumptuous thinking there will be a clear delineation between the pre and power stages, and is it a cogent idea to turn it into what will effectively be a rack system?
mwseniff

Posts: 149
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Post Re: Homemade hybrid
on: February 13, 2013, 06:57
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It's maybe doable but may be very difficult. What is the Marshall? I've always found it cheaper and easier to repair than mod stuff (I am a long time electronic tech). How about some more particulars about the amps?
magnetmons-
ter

Posts: 16
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Post Re: Homemade hybrid
on: February 13, 2013, 10:22
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The Marshall rack power amp was a solid state behemoth of some age, very loud, it just gave up the ghost after many faithful years, I took it to an electrician friend who's dabbled in amps, and he told me it wasn't salvageable, so I sent it to amp heaven.

The amp I'm contemplating mutilating is a Carlsbro stingray, 120W 2x12;
in the back, above preamp out, it has two jack sockets marked slave.

I've never needed to think about slave amps or their uses before, are they both outs, or will I be able to bypass the preamp? (like I said, I've only ever really 'plugged and played' before.
mwseniff

Posts: 149
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Post Re: Homemade hybrid
on: February 15, 2013, 07:35
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Slave amp outputs are usually the preamp outs or sometimes it is derived from the pwr amp output. You might be able to hack a pwr amp input by following the preamp output signal wiring and follow it back to the pwr amp in connection. However not all preamp/pwr amp input and output impedance adhere to standards values and may not play nicely with others.

magnetmons-
ter

Posts: 16
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Post Re: Homemade hybrid
on: February 15, 2013, 18:29
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Thanks!

I'll have a look and hopefully see...
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