Need a amplifier schematic

[mbates14]

I want to build a simple yet, powerful amplifier using transistors, not an output IC.

I heard that P3a was a good one, where can i find the schematics.
I also want to integrate it into an enclosed subwoofer box. I need plans to a box.

Any ideas??

 

[Kilowatt]

http://sound.westhost.com

There's all kinds of cool stuff there, including the p3a schematics and design notes. 😀 Nowhere better!

 

[paulb]

ESP project 3A is at www.sound.au.com .

 

[skaara]

ou calculate box size from speaker characteristics.