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Old 4th January 2010, 11:40 PM   #1
stwhite is offline stwhite  United States
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Default Transformer for Velleman K4003 amp and K8084 Preamp

Hello,


Just a quick question about the Velleman K4003 stereo amp and the K8084 preamp kits and and their power needs. I have both kits and the transformer (24V CT 3A Power ) recommended for the amp and want to know if the transformer has enough guts to power both units (I want to build an integrated amp) or do I need to have second transformer for the preamp also? If it can, what needs to be done as far as current requirements etc. if anything for the preamp? It wasn't clear in any of the threads I read.

Thanks in advance for the input.


Stew White
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Old 4th January 2010, 11:49 PM   #2
mikje is offline mikje  United States
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Stew,
I have both of those and I use the same transformer for both. Even though they don't sell the pre-amp at Parts Express, the techs were familiar with it and told me the same transformer can be used for both. No need for a second transformer.
Mike
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Old 4th January 2010, 11:49 PM   #3
Minion is offline Minion  Canada
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The preamp will draw much less current than the power amp maybe 100ma if it"s got a lot of opamps and/or transistors but probably much less ... You should be fine .....
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Old 5th January 2010, 01:02 AM   #4
stwhite is offline stwhite  United States
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Default Thanks guys

Thanks for the info guys...I was hoping that would be the case. I built my first amps ( 2 Dynaco ST 150's bridged as monos and a Dynaco ST 70 tube amp... which are all used semi regularly), about 18 years ago. Looking forward to see what the chip amp will end up sounding like. I think my little B&W's might be efficient enough. I know my Maggie IIC's will not. Again thanks for the help.

Stew
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