chip mono amp kits

[loudnoises]

I need a ~200w mono amp for subwoofer use, something that can drive this 4ohm sub without getting all hot and bothered at the load. Currently using one channel of an ra150, which i want to gift to my son as he's finally showing interest in having his own gear. Not only won't it run 4ohm bridged, it looks silly. Great little monitor amp, horrible for a 4ohm sub. (worst of all, i have 2 of these annoying little amps and every time i get rid of one another finds me).

Getting a nice polished monoblock would be nice, but not fiscally practical at this time. I've been tempted by some of the ebay chip amps but they're like rabbits and every time i look there are 3 new ones, sightly different

Can anyone recommend one or two of the cheaper chip amps? It's got to have some competence down at that 20hz range. never crossed above 80hz. Just need something to hold me over for a few months, not expecting class A quality sound.

 

[Poultrygeist]

The Yung plate amps at Parts Express are class D and make little to no heat. The picture shows a single Yung SD300 which drives two bucket subs.

 

[whoaru99]

I don't have any suggestions for a 200W mono chip amp but a couple things to bear in mind when looking at the chip amps.

1. The rated power is typically at fairly high distortion, 10% THD is not uncommon.
2. The rated power is usually at lower impedance. In your case 4 ohms is good, that's common for chip amp ratings. But, be sure to check because some of the higher powered ones are rated at 2 or 3 ohms, which means they'll be less power where you're using them.
3. Rated power is contingent on a power supply of a certain voltage, and one having enough current to support the output. For example, if you want to get 200W out, the power supply needs to have greater than 200W rating as nothing is 100% efficient.

Personally, I'd look into the lower priced offerings such as the Crown XLS DriveCore series. The smaller versions would easily support your requirement and often sell for $100 to $150.