I'm building a Combo Amp for someone.

The cabinet is Pine 13" wide x 15" tall and 11" deep. All glued together and used a 1/2" roundover bit in my router for the edges.

The speaker is a vintage 10" Utah 15W 8ohm. The amp is my dual Im386 chip bridged amp design. Can run on 9volt battery or walwart and output is 1 to 2 watts.

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If you want a open back or a closed back, you can have either one you want.

Thanks, I'm glad to get it done.

Almost every guitar and CBG played with this amp comes out sounding very bright. Guessing it's the speaker that is doing that because the original/first amp that I made was used with a different speaker and was less bright sounding.

Thinking of adding a tone pot to take away some of the brightness if that is wanted. I'll give it a try out this week.

The speaker has a break in time period and might get a little darker later, but a tone pot would still be a good idea if it works okay.

The tone circuit helped tame the brightness a tad. I had 2 choices, put a tone pot in before the signal got to the chips or put 2 tone pots on the output lines that would probably mess with the volume too much. So I chose to put it in before the signal gets to the chips.

Drew out the new schematic.

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