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Built into the GM-D7500M is a very smart crossover network. It works like a gateway, routing the big bass signals (adjustable from 40 to 240 Hz or lower, at -12 dB/octave) and filtering out higher-frequency signals to that subwoofer. This optimizes your system's efficiency and delivers the best possible sound quality. 100 % of the power, 45 % of the size. 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.
Specifications: • Peak music power: 800 watts • Number of channels: 1 • Load impedance capability: 2~8 ohms • Continuous power (4 ohm): 200 watts x 1 • Continuous power (2 ohm): 400 watts x 1 • Frequency response: 10 Hz ~ 240 Hz • Total harmonic distortion: 0.03% • S/N ratio: 80 dB • Channel # capability: 1 • RCA inputs: 2 channel • Input level control: Hi-Volt (200mV ~ 6.5V) • Built-in crossover: Variable LPF • Crossover frequency range: 40~240 Hz, -12 dB/Oct. • Bass level control: 50 Hz, 0/6/9/12 dB • Warranty: One year • Dimensions: 8-7/8" x 2-1/4" x 7-7/8" (225 x 56 x 200 mm).
Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
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