Pioneer announced its new line of high-efficiency “GM Digital” series Class-D automotive amplifiers, consisting of the GM-D8604 4-channel model and GM-D9601 (pictured) and GM-D8601 mono models. Pioneer’s digital amplifiers can produce the same power output as conventional amplifiers more than twice their physical size through improvements in their Class-D amplifier technology and design. The new amplifiers feature an extremely compact chassis for maximum installation flexibility, a new industrial cosmetic design, balanced audio inputs for improved sound quality and higher power output compared with previous models.
Power and Performance
The GM-D9601 and GM-D8601 mono amplifiers are designed specifically to power large subwoofers that can produce low bass frequencies that are often missing in most vehicles. Both models feature 1-ohm stability, allowing them to deliver extreme power and high current in a wide variety of connectivity configurations, from a single subwoofer to multiple subwoofer applications. The larger GM-D9601 can deliver up to 1200 Watts (1-ohm) of RMS power while the GM-D8601 produces up to 800 Watts (1-ohm) of RMS power. Both units feature selectable bass boost at 0dB, 6dB, or 12dB at 50Hz.
The 4-channel GM-D8604 amplifier complements the mono amp models by providing ample power for speakers that reproduce a wider frequency range. The 4-channel model can produce up to 100 Watts x 4 (4-ohm) RMS power, 150 Watts x 4 (2-ohm) of RMS power, or 300 Watts x 2 (4-ohm bridged) RMS power when configured to play in 2-channel mode. The 4-channel model features speaker level inputs and a built-in low pass or high pass crossover with a frequency slope of 40-500Hz, making it easy to add on to any system.
All three amplifiers utilize a very small, compact chassis that is ideal for applications with limited space. Each unit has been cosmetically redesigned with a new, more durable industrial design that utilizes perforated aluminum die-cast heat sinks to provide maximum heat dissipation.
|Number of Channels||Mono||4/3/2||Mono|
|Maximum Power Output||2,400 W||1,200 W||1,500 W|
|Continuous Power Output (1 Ω, ≤ 1% THD+N)||1,200 W x 1||125 W x 4||800 W x 1|
|Continuous Power Output (2 Ω, ≤ 1% THD+N)||800 W x 1||150 W x 4||500 W x 1|
|Continuous Power Output (4 Ω, ≤ 1% THD+N)||500 W x 1||100 W x 4||300 W x 1|
|Continuous Power Output Bridged (4 Ω)||―||300 W x 2||―|
|Frequency Response||10 Hz to 240 Hz||10 Hz to 35 kHz||10 Hz to 240 Hz|
|Total Harmonic Distortion (4 Ω)||< 0.5% (100 Hz)||< 0.05% (1 kHz)||< 0.5% (100 Hz)|
|Signal-to-Noise Ratio (IHF-A Weighted, at 1 kHz)||> 100 dB||> 95 dB||> 100 dB|
|Dimensions (WxHxD)||12-3/8″ x 2-3/8″ x 7-7/8″||10-3/8″ x 2-3/8″ x 7-7/8″||10-3/8″ x 2-3/8″ x 7-7/8″|