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Help wanted for first time build?
Help wanted for first time build?
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Old 2nd October 2005, 06:06 AM   #1
MidnightLamp is offline MidnightLamp  Canada
diyAudio Member
Join Date: Oct 2005
Default Help wanted for first time build?

Hi All,

I've just got a pair of wharfedale 8.2 Diamond speakers as a gift, and would like to make a small amp to use them with. As a little background, I've been building tube amps for guitar for years, and know the ins and outs of silicon electronics as well (I build a lot of guitar effects and stuff). I'm basically looking for an amp with a pcb design that can meet a few not so specific demands...

I'm looking for an amp that is:

Hi-Fi..meaning around 0.05% THD, or close to it.
-Small-medium output power (I'd say from 40W to 100W).
-Not too difficult of a build.
-Not too noisy or hot.
-Has a PCB layout available if possible.

I'm also looking to build it a matching preamp that has:
-Tone controls (Bass, and Treble).
-A plain line level input (Cd player, hi fi inputs etc..) is all that's needed.

I'm generally open to all sorts of sounds (mosfet, chip, etc... as long as they provide me with the above noted needs).

Any help will be greatly appreciated, cheers,

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Old 2nd October 2005, 07:09 AM   #2
jaycee is offline jaycee  United Kingdom
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Join Date: Apr 2004
Location: Norwich, UK
Look at Rod Elliots site http://sound.westhost.com and you will find there the P3A and P97 projects which will cover it
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Old 2nd October 2005, 09:11 AM   #3
bogicp is offline bogicp  Yugoslavia
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Join Date: Oct 2005
Your specification tell that you can use even simpler power amplifier circuit than discrete, ("Not too difficult of a build"). Reod Elliots P97 is ok for tone controls, but you can use one of widely used chip amplifiers, mostly named "Ganiclone" and "single chip amplifiers", if you use this words with Google you will see. Or you can visit Chip Amps forum on this site...

Best regards

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Old 2nd October 2005, 01:22 PM   #4
roger-k is offline roger-k  Norway
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Join Date: Mar 2004
Location: Karm°y in Norway
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