Pioneer GM-A6704 4-Channel Bridgeable Amplifier with Bass Boost

I'm no car audio expert and I don't have any testing instruments to read any data off of what this amp produces. I wish I did. But what I can say is that it fired right up as soon as I connected all the wires and started tuning it to my ears, and I am extremely happy with its performance.Currently it is driving two six and a half inch door subs in the front and two eight inch door subs in the rear and I got to tell you it really improved the sound of my system. I like it a lot. The bass notes are very clear and distinct. Recently I switched one of the 6.5" Skar front door subs into a small ported enclosure underneath the rear seat. One 125w RMS channel from this amp really pumps out some good bass from that little box. I'm going to take the other front sub out and replace it with a woofer like I did with the other one and make another ported enclosure for underneath the other side of the back seat. I bought an install kit by Installgear on Amazon. It works great and has no issues. I'm very happy with the $97 I spent for this kickin little amp. Thumbs up.

No complaints at all. Very affordable along with very good audio quality. I used this to power four Pioneer 6x8's. WOW!!! Turns out I may have over powered the speakers a bit (Pioneer 240 Watt Max), but the sound was amazing. I have used this amp for just over 3 years, still non stop performance. Pioneer makes good stuff; best bang for your buck.

Can't really write a review on it. We had a house fire before we got it installed

I use this on two 6x9 speakers and a 12 inch sub. The audio sounds great, crisp and responsive. However, the subwoofer does not have the same “punch” in the bass that pricier amps do. Also, this amp gets extremely hot fairly quickly. After about 20 minutes of loud music with bass boost (as loud as it can be without being uncomfortable), the amp gets too hot and the audio cuts down to like 25% volume until it cools down.Aside from that, this is a decent amp for everyday listening. But if you’re buying this kind of audio equipment, you’re probably looking for an amp with some bass power and endurance, and you should find a better choice before you find yourself waiting to upgrade later.

I used this to replace a Pioneer 2 channel 760 watt that was driving 2 Yamaha 15 inch cabinets.Now I am able to add a 18 inch Rockville 1800w in a sealed box as a sub. Big bass upgrade.It runs hard, turns heads, Blurs my rear view mirrors, is probably killing my hearing, and doesn't run too hotHopefully I will get at least 10 year out of it like I did the last Pioneer.The *only* think I can think of to improve it would be if it had a built in bluetooth receiver like the little $80 blaupunkt brick.

Powerful super clean sound

Amp is hooked up to 4 pioneer 6.5in door speakers 200 warts max each.Ues for 2 days and not pushed hard because I'm breaking in the new door speakers now once I get into volume it shuts off. I checked for voltage drop and nothing stays at 12.35 volts on the power wire and the amp turn on wire. I think it got hot and melted some of the connections in the amp. Which I could see if it was covered and was in an enclosed area but it's in the open and still heats up super fast.

Powers my 4 6.5 speakers 60 RMS/ 120 peak. Installed easily and performs well

sounds good so far, haven't had volume over 12

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Cheap amp. Not made like the older ones. Light weight and cheap. Wish I would have bought different.

Good