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Pioneer GM-D7400M Mono Amplifier with 800-Watt Maximum Power
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List Price: $240.00
Our Price: $121.00
You Save: $119.00 (50%)
Availability:
Usually ships in 1-2 business days
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Product Details
- Binding: Electronics
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- Brand: Pioneer
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- EAN: 0012562884264
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- Features: mono subwoofer car amplifier, 200 watts RMS x 1 at 4 ohms (400 watts RMS x 1 at 2 ohms), variable low-pass filter (40-240 Hz), selectable bass boost (0, 6, 12 dB at 50 Hz), preamp- and speaker-level inputs
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- Label: Pioneer
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- Manufacturer: Pioneer
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- Model: GMD7400M
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- Product Group: CE
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- Publisher: Pioneer
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- Studio: Pioneer
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- Title: Pioneer GM-D7400M Mono Amplifier with 800-Watt Maximum Power
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- UPC: 012562884264
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Avg Customer Rating: 
Product Description: The superior efficiency of a Class-D amplifier means higher power output and greater compactness than an analog amplifier offers.Class-D amplifiers overcome the inefficiencies of traditional Class-A or AB amplifiers. Pioneer's Class-D amps transform very little power into heat so a higher percentage of the power supply (67 %) is transformed into the load. This results in a very compact amp which needs less input power to produce very high output power. The Class-D amplifier's PWM (Pulse Width Modulator) modulates the original audio input signal with a triangulated signal wave which has a much higher fixed frequency. The result is a digital signal which contains both the input signal and a band of frequency components around the modulation frequency. A LPF (Low Pass Filter) then filters out the high frequency pulses and the resulting amplified output signal is then sent to the subwoofer and/or speakers.Bass boost gives you more control over how your music sounds. It lets you set the optimal bass level for each speaker/sub connected to the GM-D7400M, so the tone controls from your headunit can do what they do best. And because this is selectable bass boost, you can set the level at 0dB, 6dB, or 12dB, whichever sounds best to you.Built into the GM-D7400M is a very smart crossover network. It works like a gateway, routing the big bass signals (adjustable from 40 to 240Hz or lower, at -12dB/octave) and filtering out higher-frequency signals to that subwoofer. This optimizes your system's efficiency and delivers the best possible sound quality.The GM-D7400M's speaker level inputs allow you to connect your OEM unit (or any unit that doesn't have the typical RCA-type inputs) without having to buy add-on adapters. So, the install goes faster, you save money, and you've got a Pioneer amp in your vehicle.
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Customer Reviews
Review
I bought this amp because space was a concern. It had to fit in a Lexus GS400, inside the dash, above the glove compartment, where the old CD changer was. No other amp would fit in such a small place so the form factor was good. Since I had a Pioneer head stereo I though matching the make could only be good. However the problem is that this amp emits some strange background sounds, even with the engine off and the volume at zero, (a high pitch morphing sound, and a low droning one) which I still have not been able to resolve. Other than that it hits good and it is descent for what it was designed for -- driving sub woofers. Changing the factory sub to a new one may help with the noise though I have not tried it yet.
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