Hi, This is my first post on here with a few questions about a mini amp I'd like to build...inspired by my Smokey Amp.
The Smokeys a lot of fun, esp with a graphic EQ in front, which opens up a huge palette of tones...but, it has two big drawbacks. It sounds terrible through a real speaker (tinny bass response), and it has virtually no clean headroom. Of course, this is be expected from a toy. I'm thinking there are two reasons.
1. It doesnt get enough current from its 9v battery to provide strong clear bass tones.
2. The output cap is too small for good bass, only 47uf.
However, I thought I could ramp up the design by making something similiar with a LM380 chip instead of the Smokey's LM386, and using a power adapter with 470uf caps.
Question is, what power supply exactly...12v...18v...20v?
How will the power supply voltage affect the amps clean headroom?
Any suggestions? Thanks!