Just replaced a 50W RMS 4-channel amp with the PPI to drive a PPI PC3.65C front stage and I'm blown away!!!! Mere words don't do justice to this setup.

Great value, power and size. Almost too powerful, had to turn the gain way down.

I recently installed this amplifier and it certainly has more power than I need for my system. Very clear and loud. no distortion or interference. It has versatility in installation being 2ohm stable. The documentation could be much better. Use a small philips screwdriver and you will have no problems installing the speaker and power wires. Don't forget to buy the 8ga inline fuse, for install.

This is a great budget amplifier. I'm using it to power my Hybrid Audio Unity U61-2 6.5" 2-way in the front doors and my DLS MS6A components in the rear deck. What I love most about this amp is that it came with 0 gauge adapters for the power/ground cables.

This is also a class D amp but very nice compared to most Class A/B amps out there. It produces nice sound quality compared to my old amp and no noise issues.

It's not flashy, and it wasn't made to be. It won't wow you with a bunch of unnecessary bells and whistles. What it will do is very quietly, cleanly, and efficiently deliver ample power to all 4 of your cabin speakers, to your front stage and a subwoofer, or to a set of 2 way components run active. Completely utilitarian in design, this little powerhouse completely owns it's price point in the market. If you've made it this far in the decision making process to read this, buy it. You won't regret it.

I installed a PPI P900.4 and a PPI P1000.1 under the driver's seat in 1998 Toyota Tacoma. These little amps are amazing the power they produce in such a small package. There are 3 things that I can say bad about the PPI is:

1.) Why use Phillips head screws for setting the gains and crossover points?

2.) The Phillip screws for the power and speakers wire holders are partial blocked by the bars made into the ends of the amp. I had to use a very small headed flat head screw driver to tighten the screws without stripping them.

Even with my above complaints these amps are a definite best buy! Btw, SonicElectronix.com sent them at lightning speed! Within 2 days after my order, they were at my house!!!

This is a great big amplifier in a tiny little package. Sounds great! Pushes my Front component speakers and bridged the rear to push my iDMAX 12! More than enough power for me. Fits very nicely under my passenger seat. Solid little amplifier. I'm very happy with my purchase.

I installed this in place of the factory amp in my Porche Boxster S, along with Polk Momo's in the door. Very nice improvement.

This amp is a power house and its smaller than a paperback book. Pics do no justice on it's size. Very low noise floor and very efficient. Barely gets warm. I've had a lot of amps most mid level and a couple high end this amp was without a doubt one of the best amps I've had due to its price, size, power and performance. I've picked up another one because of it. Its not the prettiest but you don't look at amps for looks. Homerun on this one PPI.

This amp was for a stealth project in my family sedan. No subs, just a strong front stage and subtle rear stage. This amp is amazing, lots of power. It's set 1/4 way full range and it's making my pioneer rev 6x9s shine. It has a great x-over and great small foot print. Fits perfectly under the front seats. Only gripes with this amp, is the RCA connects seem kinda fragile. Also accessing the power and speaker terminals are a pain, you need a small screwdriver to tighten and adjust them. Problem is you lose the torque ability and can't easily tighten. If you can overlook those drawbacks, this is the best 4 Channel amp on the market, at any price point.