Memphis M-Class amps

 

None of their amps seem particularly small to me.

 

helix is decently small... mostly just really thin...

 

Audison..........SRX and LRX series amps. Really well made amps, super reliable and tons of power for the size they are.

 

I just saw the Alpine 150x2, 150x4 and 1000x1 PDX amps in person and I gotta say they are incredibly small for the power you can get, especially the 150x4 and 1000x1. The Xtant 1.1 is a tiny amp, but it's only 1 channel too.

 

Eclipse has a 4 channel amp with gobs of power as well. It is the new ICEpower class D full range amp, 125w rms x 4 and the thing delivers big time. Size wise it is not too large but it is also not a small amp as well. Without knowing the space limitations or budget, it kinda makes it hard to recommend any one given amplifier for the application.

Only other one that comes to mind is the rather small Concept HC65.4.

 

I just picked up an Audison LRX 1.400, and I couldn't believe how small this sucker is for the power it puts out (rated 900W RMS @ 1ohm).

 

The only question that bothers me is how well do those fullrange class D amps sound. I'd like to do a comparo one day. I've heard mixed thoughts about this.

 

Ive heard that the first of the full range class Ds had audible switching noise, especially at high frequencies....

but Id tend to think anything made since the late 90's would be decent... there are probably also class T amps around that will come in a compairatively smaller footprint and work at 2-4ohms...

class G and H amps are essentially class A/B but have higher efficiency and should come in a small footprint... but I don't know of anyone who makes them in car audio.....

 

The Eclipse and Xtant full range class D amps have proven to be amazing.