I have this amp put to 4 Alpine Type-R 6 and a halves components with an extra set of tweeters in the front and 4 six by nines in the back doors of my '99 tahoe and it increased the treble to the maximum in my car. i completely recommend this amp to anyone who needs plenty of power. a little underrated but thats why i got a 120 X 4 at 4 OHM instead of just 100 X 4. but thats just life. Sleek design with medium-easy knob control. Easy wiring. The ONLY bad thing is that it heats up pretty fast, i do have it in a non-airtraffic area between my sub box and where i have my sub amps at but not deadly im sure. make sure you check on that

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