New Class-D Amps From Pioneer: GM-D9500F, GM-D8500M and GM-D7500M

Pioneer Electronics Inc. today introduced three new high-efficiency “GM Digital” series Class-D amplifiers, the 4-channel GM-D9500F and the monoblock GM-D8500M and GM-D7500M. Inherent to Class-D amplifier design are vastly improved electrical and thermal efficiencies, allowing the amplifiers to produce the same power output as conventional amplifiers more than double their physical size. The new Pioneer GM Digital series Class-D amplifiers feature dynamic, balanced sound quality combined with high power output, all in an extremely compact chassis.

Pioneer GM-D9500F

“While it is commonly understood that the addition of an external amplifier to an in-vehicle entertainment system can make the system play louder, the improvement in sound quality if often overlooked. An amplifier contributes to extended frequency response, greater dynamics and a less constricted sound overall,” said Ted Cardenas, director of marketing for the mobile business group of Pioneer Electronics (USA) Inc. “The new GM Digital series Class-D amps are also very efficient and compact, allowing them to be installed practically anywhere in the vehicle.”

Power and Performance

Pioneer’s GM Digital series Class-D amplifiers are 80-90 percent more efficient than those of traditional class A/B design. The monoblock GM-D8500M and GM-D7500M are engineered specifically to power in-vehicle subwoofers and feature 2 ohm stability allowing them to deliver high power and high current in a wide variety of configurations, from a single subwoofer to multiple subwoofer applications. The 4-channel GM-D9500F completes the line-up of GM Digital series by providing a matching full-range Class-D amplifier featuring the same electrical and thermal efficiencies and the same compact chassis design. The combination of the GM-D9500F with either of the GM Digital monoblock amplifiers provides the foundation of a truly high performance car audio system in a footprint that takes up less than 2 square feet of space.

For car audio enthusiasts, the GM series amps look as good as they sound. They feature a simple yet classy and modern cosmetic design perfect for custom installation displays. Each unit features black, aluminum die-cast heat sinks and a hairline silver aluminum top plate for maximum heat dissipation.

The new four-channel GM-D9500F produces 75 Watts X 4 while the monoblock GM-D8500M provides 300 Watts X 1 and the GM-D7500M produces 200 Watts X 1.

The GM-D9500F, GM-D8500M and GM-D7500M will be available in January 2010 for suggested retail prices of $270, $280 and $200 respectively.