I need an amp. Basically, I plan to incorporate a pair of 4" car speakers (Probably these) into a cabinet, which will also contain my monitor (which has absolutely crap speakers) and the computer itself. I've looked at car amps, kits on ebay, shitty amps on ebay, etc but nothing really seems to fit the bill. They either all have bluetooth, which I don't want (I'll be using the computers bluetooth for headphones and the computers 3.5" output jack as a source) or are too cumbersome, too expensive, or too/not powerful enough. In a perfect world, I'd like something very compact, very reliable with relatively decent (think lowish end car amps) for 50 bucks or less. Maybe $100 if absolutely necessary, but under $50 would be much better 2x30W RMS would be perfect, far better than the 2x2-3w usually built into monitors. No need for bluetooth, able to run on a 5-10A wall wart or even a computer PSU 12V rail. There will be a powerboard built into the cabinet, I plan on having basically a suitcase sized computer with a single IEC plug on the rear, no other inputs on the exterior. This means I also have no plans for a subwoofer, not that I actually want one. I'll be running the amp either full time (computer power on, but not necessarily with amp in use) or with a soft power-on switch, obviously preferable so that the amp only comes on when I turn the sound on for the PC, which is rarely. I mostly just use bluetooth headphones via the PC's onboard bluetooth, hence the lack of need for bluetooth. I would however like, and this is a want, not a need, to have a remote 3.5" headphone jack I can mount on the front of the case in case I need to use different headphones if desired. Of course people will suggest I just buy some powered computer speakers or a soundbar. I don't want these, I want half decent, very compact built in speakers such as the ones I linked above. They'll be loud enough, and in the 5L or so rear area I will have available to fit each speaker, I should have sufficient room to create a decent enclosure for each of them, providing me with sufficient bass and sound for my needs. I won't have the frontal area available for a pair of standard speakers though, due to some other stuff on the cabinet, hence the 4" speakers. I also do not want a subwoofer, so it is my opinion that any 2.0 computer speakers small enough to fit the space will not cut the mustard bass wise. I'm no audiophile, and they are to be computer speakers, not a home theatre. I don't wish the speakers to have a separate volume control. I might perhaps be persuaded to have a 'speaker on' button though, to switch the amp on and off as desired instead of full time power or 'soft on' auto switching. I'm sure there are heaps of kits out there which cost bugger all that can do all this. I don't have the skills to play with them. If anyone is able to find and adapt a kit to suit my needs, within my $50-100 budget, I'm all ears The nearest 'off the shelf' solution I have found is THIS ONE, but reviews are wildly varying. It would seem that the REAL output of these amps is probably about 2x25W, which is fine, but quality appears to be haphazard. Any ideas, or even better, anyone who can build or modify something cheaply to suit my needs?