Big Power, Small Size
Pioneer’s extra-efficient GM-D8701 Class-D amplifiers mark a dramatic improvement in power output capability, yet are 50% smaller than the current GM-Series Class-AB amplifiers. That makes them more versatile in terms of installation as well as performance.
Improved Circuit Design of the GM-D8701
To prevent circuit shutdown, Pioneer’s GM-D8701 digital amplifier circuit “Protection Control System” senses its internal temperature and automatically moderates input level accordingly. Stable, durable circuitry lessens the risk of high input power for the unit to achieve a 1 Ω connection. This design enhances the flexibility to connect multiple subwoofers to a system.
Variable Low Pass Filter
For extra flexibility, a variable LPF makes audio frequency more adjustable according to subwoofer characteristics and personal listening preferences. The GM-D8701 LPF is adjustable from 40 Hz to 240 Hz.
|Speaker Level Inputs|
|Crossover Type||Variable LPF|
|Warranty (must be purchased from an Authorized Pioneer Dealer)||1 Year|
|800W RMS x 1||500W RMS x 1|
300W RMS x 1
|Frequency Response||10 Hz to 240 Hz|
|Total Harmonic Distortion (THD)|
< 0.5% (100 Hz)
|Signal-to-Noise (SN) Ratio||> 100 dB|
|Low-Pass Crossover Frequency|
|Low Pass Slope (dB/octave)||-12dB|
|High-Pass Crossover Frequency|
|Bass Boost Frequency||50 Hz|
|Hi-Volt Input Level Control|
200 mV to 6.5 V
|Load Impedance Allowance (Ohms)|
1 to 8
|Protection Control System|
|Bass Boost Level|
0 dB to 18 dB
|Bass Boost Remote|
10-3/8″ x 2-3/8″ x 7-7/8″
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