Cheapest Solid State Amp?

Hi guys, im trying to build the cheapest possible amplifier, at least 50 Watts and low THD

Can someone please tellme some amplifier with that specs?

Sorry but what spec?

You'll need to provide some definition of what you expect in terms of cost and performance or no one will have a clue what to recommend.

For instance, are you looking to build under $100, $200???

Is 0.1% THD good enough or do you expect better?

Initially, I would recommend a chip amp for most bang for your buck.

Sandy
 

markoramius

Member
2008-03-28 6:58 am
Hi,

If you want to build a discrete amp and do not want to spend too much, maybe you can read about the Mosfet Citation 12 by Nelson Pass or the project 3A from Elliott (few components, truly excellent sound, and he sells excellent pcb for the amp).

Pass Labs: Technical articles
60-80W Power Amplifier

As for cheaper chipamps, you could try with TDA7394 (Arg. Pesos 15 per device). Good sound overall. Very few components.

Good luck,
M.
 

RSK

Member
2004-11-20 3:03 pm
K.L.
Very good sound from fellow Argentinian designer

Hi guys, im trying to build the cheapest possible amplifier, at least 50 Watts and low THD

Can someone please tellme some amplifier with that specs?

Build this and be surprised of it's performance. Output can be any type you can get hold off.

Regards.......Raj
 

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Chlorofille is right, but you could still build it with 2N3055/MJ2955 (+/- 30V max PSU) or maybe MJ15003/4, and still have excellent sound ;)

Good luck,
M.

Agree, totally.

No need for "exotic" audio transistors if <5% THD will do.

In fact I'd go for the TIP3033/2955 in plastic packaging.

You should be able to get these for very little money, anywhere.

Sandy