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Old 2nd July 2008, 08:42 PM   #1
Shardik is offline Shardik  Sweden
diyAudio Member
Join Date: Jul 2008
Default Simple amp for a complete newbie

Hi folks!
I recently bought two very cheap speakers that i would like to hook up with my computer. Commercial amplifiers are a bit too expensive, so i wonder if it is possible to construct one myself. The only things i really need are a volume control, two RCA or one trs jack, and some kind of connector for the speakers.
(Correct me if im wrong)
It would be nice if someone could give me instructions for this.

These are the specifications from the back side of the speakers:

Impedance: 4 ohm
Max continous power handling capacity: 20 W
Max music handling: 30 W
Sensitivity: 1,2 W
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Old 2nd July 2008, 08:49 PM   #2
jaycee is offline jaycee  United Kingdom
diyAudio Member
Join Date: Apr 2004
Location: Norwich, UK
If you want cheap and simple, go with a chip amp of some kind.

Two LM1875 chips would be ideal.
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Old 2nd July 2008, 08:53 PM   #3
diyAudio Member
Join Date: Jul 2001
Location: The Netherlands
I think you are should be looking for a chip-amp

be even then, you can get a NAD3020 for 150 dollar: ..DIY is fun, but not cheaper...
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Old 3rd July 2008, 06:05 AM   #4
YFW is offline YFW  United States
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Join Date: Jun 2007
LM675T,a very good choice for the beginners.
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Old 4th July 2008, 12:53 AM   #5
Shardik is offline Shardik  Sweden
diyAudio Member
Join Date: Jul 2008
It was a cheaper solution i was looking for, so i'll just buy one then. Thanks for the advice anyway
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