Rockford FosgateP600x4 Punch 4-Channel Amplifier

Great seller and amplifier. It solved my white noise coming through my speakers.

I replaced an Alpine (100w x 4) class-D amp on my boat with this Rockford Fosgate (75w x 4) class A/B amp and it sounds much better . It's driving (4) Alpine 6 x 9 speakers, model 6912m. More than enough power. This amp gets just as loud as the 100w Alpine. I think both amps are plenty of power for the Infinity's.This amp was very easy to fine tune. Nice controls. Parametric Bass EQ let me pick the bass frequency I wanted to boost and then a separate gain control to adjust the bass level to just how I wanted it. Perfect Boom... but not too much to interfere with the rest of the music, but it's really there. Boom.All the harmonics that were missing with the class-D amp are back now. I listen to rock and occasionally rap/pop. This amp is perfect for that. Rock on Fosgate!

PUNCH p600.4 is a good amp, it produces a good amount of power and its clean sounding , high SQ.MY SPEC SHEET Claims 529 watts @ 4 ohms, thats right around 132 watts each channel@ 4 ohms.This amp has the c.l.e.a.n technology and it appears it does a good job cause the sound is clear at high volume, my ears give out before the clear music does. This amp is pushing 4 HERTZ door speakers and its loud, prolly hearing damage loud, but still clean and clear with no distortion. Of course i dont ride around with it playing full tilt but its fun to show off to stereo enthusiats.

i normally dont write reviews but i just have to let everyone know I'm absolutely loving my amp. I had bought an Alpine pdx f6 with 600 watts rms for $420 DOLLARS and I sent it right back because it was cutting off at high volume which my older rockford with 400 watts was pushing with no problem. So I decided to go back to rockford but I wanted more watts and it was the grratest decision ever. This baby is pushing 4 power acoustik 8" mids speakers, each 100 watts rms and 4 tweeters and is putting power like no other amp. I might even upgrade my speakers soon for more rms and get full power. Btw my certificate states 847 watts rms!!!!! Dont listen to negative comments probably from people that dont even have a good set up to start with. Figure the rms watts needed for your system and chose between the p400 or p600 and you won't go wrong.Good luck.

Got this in yesterday and to my surprise the birth sheet was 821 watts! Running 2 sets of alpine type r 6.5 components at 4 ohms, my soundstream 4.560 was louder at 4 ohms but the sound quality on this is way cleaner. It is 3 times the price but you get what you pay for! The set up was kind of confusing at first with the clean set up, but found out my radio does not distort even at max volume, after that it was easy. Very clean look and for being 1/2 the size of my other amp it weighs a lot more. Sounds just as good as my wife's jl 700/5 xd but a lot cheaper. After breaking this in i read more and turned the punch eq up that also works on the hpf if you read instructions, after turning this up 1/2 way i can turn my stereo up 1/2 way and it is loud! So if you purchase it before you think its not loud play with the settings before thinking something is wrong. Just bought the t1 6/9', and t1 component 6.5's to match. Update this review once thats done to see how they match up with this amp soundwise.