760W Max Output
RCA / Speaker Input
Speaker Input Signal Sense
RMS 60W x4 @ 4Ohms
RMS 180W x2 @ 4 Ohms Bridged
RMS 90W x4 @ 2 Ohms
MAX 760W Bridged @ 2 Ohms
MAX 120W x4 @ 4 Ohms
MAX 190W x4 @ 2Ohms
Frequency Response; 10Hz to 70kHz
SN Ratio; >95dB
Crossover Frequency Slope - Ach; 80Hz - 12dB/Oct (LPF / HPF) Bch; 40 to 500Hz, -12dB/oct (LPF/HPF)
13.75" x 8.5" x 2.5"
This review is from: Pioneer GM-A6604 4 Channel Car Amplifier 760W Amp New GMA6604
Pros: The amp works well. I have it tuned perfectly for my 4v pre-outs and it works well powering two 6x9's for now. I intend to finish hooking up 6.5's tonight to use the full four channels. The 6x9's are very powerful and clean with the deck at 3/4 volume--I cannot stomach much higher and neither could my neighbors.
Cons: The packaging was dismal. There was some bubble-wrap on all but one side. The amp was in its original box, though there was no instruction manual or other accessories. This makes me think the item was possibly open-box or tampered with previously. Nonetheless it does work (at least the B-channels do. I will test the A-channels tonight.) Packaging was the only reason I docked an egg.
Other Thoughts: I have HPF tuned to 63Hz before it ever reaches the amplifier, so I cannot attest to the high and low-pass features of this amp as I am not using them. I am not pushing gain higher than matched 4v pre-outs. I prefer sound quality over loudness/clipping and I want my car audio equipment to last.
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