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Key Features New IC and MOSFET Unlike conventional amps that contain individual PWM modulators and ICs mounted separately, our new Class-D amplifiers integrate those capabilities in the more compact form of a single newly developed IC with built-in PWM modulator. Also, with power MOSFET extra-effective at dissipating heat, these Pioneer amps are brilliant combinations of advanced circuitry, space-efficient design and light weight. More Impact Made More Compact. A Class-D amplifier isnâ€™t just more powerful than preceding amplifiers â€” itâ€™s also much more compact. Powered up 33% â€” Slimmed down 57% Efficiently Compact, Awesome Power Class-D amplifiers overcome the inefficiencies of traditional Class-A or AB amplifiers. Pioneerâ€™s Class-D amps transform very little power into heat so a higher percentage of the power supply is transformed into the load. This results in a very compact amp which needs less input power to produce very high output power. Clearer Sound, Less Distortion. More conventional Class-D amplifiers have had advantages in energy efficiency and compactness, but not sound quality. They have been useful mainly for sound pressure-oriented subwoofers. So Pioneer devised new circuitry, carefully selected electronic parts and provided for more fine-tuned acoustic capabilities for its new Class-FD amplifiers. The results: high-quality, clearly localized sound throughout the full frequency spectrum from a more compact amplifier. GM-D7500M Number of Channels Mono Max. Wattage (4 Î©) 400W x 2 Max. Wattage (2 Î©) 800W x 1 Wattage RMS (2 Î© <=1% THD+N) 400 W x 1 Wattage RMS (4 Î© <=1% THD+N) 200 W x 1 Frequency Response 10 Hz to 30 kHz Total Harmonic Distortion (4 Î©) <0.03 % Signal-to-Noise Ratio (IHF-A Weighted, at 1 kHz) >95 dB Dimensions (W x H x D) >245 mm x 56 mm x 200 mm
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