Pioneer GM-DX874 1,200 Watts Class D Powerhouse Amplifier, 4-Channel Amp, Variable Low-Pass Filter, Compact Design, and Remote Bass Boost Control

Great build quality. About as compact as you can get. Unfortunately it was not what I needed so it was returned. 5 star for build, festures and simplicity

For the price it is worth it. I used a 2ohm 12 inch Subwoofer to utilize the 500 watt rms power. Blew the voice coils on 2 subs. So I found a great deal for a sundown audio classic subwoofer, it handles 700 watts rms and seems to be handling the power this little amp puts out. I think it puts out more power than 500 watts as advertised this little amp does. It aint obnoxiously loud, like I would like it to be, but it's plenty loud in the cab of the car.

Price was great ($169). I am running 4 3way Pioneers (70w) with this amp. No overheating, no glitches. Easy to hook up. Has presented no problems with my truck's charging/electrical system. Very pleased with purchase.

Awesome amplifier! Pioneer is the factory, amplified sound system in my car. I replaced all speakers and amplifier with updated Pioneer units. This amp for great in the factory location even though it's slightly bigger, but not too big that it wouldn't fit on the factory amp bracket. I recommend.

Bought this thinking it was brand new and come to find out it was refurbished. Okay not a big deal until I stumbled onto one of the rca plugs was defective.

- Probably better for speakers than a sub - Sleek metal build that stays decently cool - Not as powerful as other amplifiers, but still good power. - Small, and can fit in tight spaces - Worth the money as a starter amplifier

Amp is great, sound output is good. Powers a Kicker L7 Q12 with no issues.

Added to a 2022 Mustang to power a 10" subwoofer, and 2 two-ways in the rear deck, to upgrade the existing "Bang and Olufson" stereo. Generally good results, after using a pre-amp DSP (AudioControl LC2i) to sort out the signal from the stock head unit. Has plenty of power, setting the gain about 40% level. The low pass and high pass filters work well, and I was able to custom tune to my ears. This is not a high end Amplifier, and you can find others that will cost you double or triple. For my needs it was perfect when you need just better and cleaner sound.

Great customer service by 1156425 Ontario Inc who took back this amplifier, thank you very much for that. The amplifier itself, if you like to listen to music is a very poor amplifier. The signal to noise ratio is absolutely terrible, which means that listening to jazz at low volume, you hear a lot of pink noise in your speakers. BUT it's capable of driving speakers to make a lot of noise for a low price. If you want high volume and to impress people, yes, if you are a fine listener, no.

Büyük bir hayal kırıklığı. Araç multimedia sına bağlandı. Sanki yokmuş gibi hiçbir katkısı olmadı. Ne ses kalitesi ne de volume da bir iyileşme yok. Boşu boşuna ısınan mavi ışığı yanan bir kutu sadece.

És un amplificador muy compacto y fácil de instalar. Yo lo he utilizado sín rca y no he oído ningun ruído al conectarlo o apargarlo, mis altavozes son unos Coral de 45wRMS y ahora puedo subir más el volumen sín que se distorsione. Si quieres dar un aumento de potencia a tus altavozes y estos no son excesivamente potentes cumple su función. Lleva el suficiente cable como para poder colocarlo en el sitio donde se desee. A parte lleva un sistema para filtrar la frequencia de agudos o graves, que ea muy facil de utilizar. La unica pega que le veo es que los cables están sin encintar y deberian estarlo ya que si rozan durante cierto tiempo con alguna pieza del coche se pueden dañar.

Amazing amp Easy to tune Loads of power

Have this running a set of Audison APK130 component speakers fully active with signal from a Pioneer headunit. Sounds fantastic and plenty of power. Extremely simple to install. Literally plug and play if you're using a headunit with ISO connections. No need to run additional power to the battery if your stereo circuit has enough power. Unit is very small so easy to hide in or behind the dash. Comes with some mounting screws but I just used velcro to stick it to the carpet behind the glovebox. Only minor complaints would be no gain control and fixed wire lengths can limit placement and/or a pain to tuck away.