Pioneer GM-D8604 (Ships as 2019 model: Pioneer GM-D8704)

powerful little amp

so much power in such a small footprint. This amp is perfect if you have speakers that need power especially mid-range and high frequency tweeters.

Wow

Powerful very compact. For the price, you can't beat it. Nice quality amp.

Pioneer GM-D8604

This amp is seriously packing for what you pay for it. It is my first digital amp and I am beyond satisfied with it. It has all the bases covered. I have it running my door speakers and it does not disappoint. I would buy this all over again if I had to buy an amp. Sounds great with my Pioneer speakers and head.

A++

Works great. I have it powering my 4 door speakers in my 2001 GMC Yukon. I have Focal 6.5" components and they sound pretty good. Pioneer head unit and sub amp as well. I'm pleased. The 8604 runs cold. I've never even felt it get even a little warm.

Superior 4 channel amp!!!!

Overall excellent price from sonic electronix. First amplifier I have ever owned for my 4 door speakers. Running it 100 watts x 4 at 4 ohms and this amp barely even warms up at high power. Very excellent amp and I can see me using this amp for years. I will be purchasing more from these guys...
Thanks sonic electronix!!!!

I love this little amp

This thing really knows how to put out some power. I have this in my 99 grand prix along with pioneer d series speakers. The highs really sound crisp. It is set up to work as a highs amp so there is no bass but I am going to get some subs hopefully soon.

Excellent product

A very good product that is both compact, of high quality and excellent value. I would recommend this product.

good power small package

Small size good sound for the money out powered old stuff for a fraction of the cost!

Fantastic

Pioneer has certainly perfected the technology allowing class d amplifier to play full range with perfect sound quality giving you massive output with minimal power usage. This amp is a must have, I just replace my Fosgate P500-4 with this baby and I am so happy.

Very impressed

Small package big power..very clean highs will be finishing project very soon

loud and clean mids and highs.

I got this amp in my challenger with 6/9 three way INFINITY KAPPAS and 6/5 two way INFINITY KAPPAS. All i can say is wow. THANK you sonic electronix for the low prices and free and fast shipping. I also got the pioneer GMD 9601 pushing 2 12inch keenwoods in a sealed box in the trunk. What a nice set up.

Cool under pressure

I have always ran higher end Premier and Pioneer headunit's with complete confidence. This is the first time I've ever taken a leap with a Pioneer amplifier. My experience has only been with class A/B amplifiers. This amplifier retires an older PPI 4ch and powers a Diamond Audio Hex component set in the front and dual 10's in the rear.

There is no shortage of power with this unit. It seems to produce its sustained rated power with ease. Many times it's pushed through long road trips and has not even gotten hot.

I will not concur with the others in that it has the fantastic sound quality. It has good sound quality. I believe that this is the trade between digital and analog amplifiers. I've spent much time with both live and recorded music that I notice a slight coloring of the music as compared to decent A/B class amplification. While crisp, the brighter notes sound over processed a bit. The warmer tones and bass notes do sound quite good.

While I do wish that the unit provided for a remote bass knob, its very easy to set up and its small footprint and cool operation makes for a very flexible installation.

This is more machine than one would expect at this price point and will work very well for most.

Great 4 Channel

excellent, compact, beautiful and clear highs. With the right set of full range speakers this amp is up for the challenge. First class D amplifier I've owned and I cant complain.

excellent choice!

I search for that particular amplifier long time ago and find it at Sonic electronix web store almost for half of original price. I install it myself and instead of running four speakers of it i did 8 of them (four at front 4Ohm each and four at rear 4 Ohm too and every pair of speakers i connect in parallel what give me 2 Ohm load and 150 watt RMS for each channel,600 watt total).Sounds incredible because amplifier supply more then enough power to my two front pioneer punch series 6.1/2inch. speakers(each 100 watt RMS) with pair of Infinity Kappa twitters(50 watt RMS each) and two rear Infinity Kappa 6x9inch 3 way speakers(each 110 watt RMS) with two Polk Audio dome twitters{each 60watt RMS).I recommend this amplifier for any car audio enthusiast out there.And Sonic Electronix ROCKS !

Awesome sound!

I am using this on my '15 Altima with my factory radio. I needed power for my infinity 6.5s and 6x9s. I love the crystal clear sound and bass. The amp doesn't need a remote turn on due to the auto sensing feature. I do have a "pop" sound when the amp turns on or off, but I'm sure it's not amp related. It puts out plenty of power and is very tiny. Easy terminal connections. Pioneer continues to do well every time I use their products. Definitely worth the money!