Re: 4 channel for mids and highs opinions and help!
You need to have a way to control the extra tweeters. The simplest way is to put some caps on the tweeter positive wires and wire them to the same amplifier channels, but this is the lazy way. I have a few options from CDT Audio made just for this purpose. They're called UpStage Systems. Upstage Series
For an amp my best recommendation for your budget is a Precision Power P900.4. I sell a lot of these and they sound great while running cool and efficient.
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