Hi, All.

Today, I recommend

200 watts super bridge power amplifiers

This is a 200 watts super bridge power amplifiers, include the transistors as based of circuit, so suitable for signals from the bass guitar. It's a high power, durable and cheap. Use it in the house, the sound quality also is good.[...]
Read more:
I recommend E-book for those who interested.
1.www.eleccircuit.com/ebook/my-first-variable-supply-by-lm317.pdf
2.www.eleccircuit.com/ebook/simple-auto-cut-off-12V-battery-charger.pdf

Best Regard,
Momename
http://www.eleccircuit.com/