Looking to build a solid state power amp. Class D?

[azrael]

What's a good chip to base this on? I'm looking for something I gig with, something that's pretty clean sounding.
I've seen the TDA2040, which is 22W at 18V, but I think I might need more power than that.

[Jazz P Bass]

Class D IC

TDA 7482
Class D
25W
Datasheet:http://www.datasheetcatalog.org/data...onics/5200.pdf

[azrael]

Well that's not significantly more powerful, right? I need something that will remain reasonably compact and clean but still get over drums.

Thank you for the suggestion, though.

[azrael]

What about this?
Free Schematic Diagram at www.circuitdiagram.net
Where do I go about getting a bipolar power supply like that, though?

[Jazz P Bass]

http://www.st.com/internet/com/TECHN...CD00002355.pdf
This guy will do 40Watts. Class D.
That link that you supplied is used on a lot of amps.
Marshall comes to mind.
There MG stuff.
It is a class AB amplifier ic.

[Steve Conner]

If you want Class D, buy a ready-made module. It's hard to do properly.

[J M Fahey]

Also search (here) for the Crate Power Block schematic, it has 2 x 75W/4 ohms class D channels.
That said, it's complex and even they, with all that corporate muscle behind, had to drop it.
Maybe a nice old technology AB amplifier, such as an LM3886 fills the bill.

[azrael]

Actually I own a power block, but I was hoping to find a more compact design that that. Haha.

[J M Fahey]

Actually I own a power block, but I was hoping to find a more compact design that that.

WTF

Or, to state it better, since I did not find the *very* surprised/dumb smilie I was looking for:

[azrael]

I don't see why it's so confusing. Something as big as the EHX 44 Caliber would have been cool.