Pioneer GM-6400F Review
4-Channel Bridgeable Amplifier
The GM-6400F is one of Pioneer’s latest amplifiers (2009 model) and was designed to fit both cosmetically and technically with Pioneer subwoofers. The GM-6400F gives you total installation freedom and no distortion.
With an H-shaped chassis for vibration control and a PWM regulated power supply, you can drive multiple speaker channels or subwoofers and turn your in-car audio experience into the sound staging environment you’re looking for.
Review by E. Rodriguez, Miami
I installed this amp in my F-150 two weeks ago and wanted to test it out a bit before submitting my review and so far, I couldn’t be happier. My mids and highs are extremely clear now and I can actually hear small details in music that I couldn’t hear before with just my pioneer head unit powering my speakers. I’m using this amp together with a GM-5400t bridged powering a 10″ Kicker CVT and the systems sounds extremely clear even at high volumes with no distortion.
Being a relatively cheap amp, I wasn’t expecting much out of it but I’m truly impressed by it’s output and clarity. I also read that the previous version of this amp the GM-6300f had some overheating issues but I think they have been resolved with this model. I have two amps mounted behind my rear seat with barely any ventilation and neither of them have turned off once. I’m sure that there are better amps out there but in this price range, I can’t imagine one being better.
Review by Andrew R. Williams, Miami
Been in my car for a month or so now and sounds great. I have it hooked up to my 4 factory in-car speakers (98 Eclipse Infinity speakers) and they sound crystal clear and very loud. All my settings are set to default out of the box on the amp and the stereo is set for max highs and slightly below highest setting for mids. I don’t need to go higher on any of the gain values default is great on the amp. Although I’m not using this amp for any bass it sounds great if I do turn the bass level above 0 on my stereo (I have a separate amp for bass on a sub).
One thing I didnt like is the way the speaker out part is. They are ontop of each other but the rears extrude out further as if they where steps. It sticks out quite a bit and for some reason left and right are backwards so its right speaker and then left? Besides that its a great amp, looks nice to with the black and the red on the sides.
Pioneer GM-6400F
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