Image Dynamics IDQ 12 OR Sundown X-12 Sundown SA-12 OR Alpine Type X 1

[exef 0]

Which one would be the best at 600-700W at 2Ohms in an SUV.

Which one would be the overall winner on comparing the lows, distortion, mechanical noise, efficiency, how musical it is, how clean it sounds.

Basically for an SQ build I'm gonna look into very soon.

Other suggestions in the price range are welcome.

[///M5 2,833]

If you truly want what you say you want I wouldn't pick any of them...but I also wouldn't really be so worried about the sub end of things.