I had a hard time back when i was looking for high power for active components.
I ended up going with a 2 channel amp for each door. 125 wrms x2 for right and 125 wrms x2 for left. Stereo separation is amazing.

 

jbl px300.4 same amp as gary biggs, mark eldgrige and myself use.

 

I ended up using a pair of 4 channel amps bridged to 2 channels each. 180 watts rms x 2 to each door. It sounds great and can get pretty loud when called upon.

 

I think this says it all...why spend a fortune on some exotic Brand, when it's obvious that good quality, popular brand name amps are just as good...just a lot less expensive!!

 

I'm quite happy with my Eclipse XA Series amps. 4x125rms @ 4ohm, but it's a rather large 4 channel. The gold plated flush connections certainly give you the idea that they spent time on SQ, but I always thought Gold plate was moot... can anyone really tell the difference?

 

what? gold plating makes it sq?

as far as big power needs, I find PG Xenon amps to be right up my alley. too bad PG went to *****, they had some nice products. xenons are big, but provide real good power per channel with no need to bridge the amp.
while Kicker isn't considered to be an SQ oriented company, I liked their KX line for the ability to deliver some good power.

i wouldn't ever chase for the "sq signature" of the amp, rather worry about reliability and sturdy build, both physical and internal wise, like power supply and ability of the amp to provide some headroom. unfortunately for these kind of details, we'd have to throw the bullshit marketing aside and need to ask someone knowledgeable who really knows the guts and their design, who is hard to come by, but those can be found on the net.

 

It goes like this

The more money you pay per watt, the more musicality you get out of that watt. hehehe

 

I have been looking at the PX 300.4 and have been trying
to find a dealer with a new one in box but no luck...
I don't want to order a new one from the US because of warrantee
purposes

I got the GTO 75.4 ll but it's just not quite there......
a little shy on power for my two sets of 660gti's

I have a line on a couple of used ones but they are not
in mint condition..I don't buy amps that have been sliding
around in a trunk

 

brax, helix, dsl, u-dimension are all musical if u can put ur hands on them

 

Sundown Audio SAX-100.4 features Sanken bipolar output transistors, and allows for full active speaker settings with no processors...

CH 1 & 2 Variable HP crossover 50 - 5000 Hz @ 12 dB
CH 1 & 2 Variable LP crossover 50 - 500 Hz @ 12 dB
CH 3 & 4 Variable HP crossover 50 - 500 Hz @ 12 dB
CH 3 & 4 Variable LP crossover 50 - 5000 Hz @ 12 dB

Just to give you an idea...