Orlando, FL (July 6, 2011)–At InfoComm in Orlando, Bose Professional Systems Division announced Bose RoomMatch Arrays and PowerMatch Amplifiers–“new Bose patented technologies” in a system conceived to “provide audio quality equaling that of the best concert-sound systems, in a fixed-installation format.”
The RoomMatch RM7020 large format array consists of five vertical and four horizontal coverage pattern options, developed to “allow arrays to direct sound precisely to desired listening areas, improving audio quality by reducing unwanted acoustic reflections” through the matching of the individual cabinets into a curvilinear array in application specific combinations. The high-frequency section of each cabinet employs six Bose EMB2 drivers, each with two-inch voice coils, in a “Continuous-Arc Diffraction-Slot (CADS) manifold” that affords “interference-free acoustic summation of six compression drivers and acoustically-equal spacing of diffraction slots across multiply modules.” The RM7020 cabinet also houses two Bose LF10 “ultra-linear” 10-inch woofers that utilize three-inch voice coils. The rated frequency response (+/- 3dB) is 60 Hz – 16 kHz, and each cabinet weighs in at 123 lbs.
The RoomMatch cabinets are designed to be mated with the new Bose PowerMatch PM8500/PM8500N “Configurable Professional Power Amplifiers.” These Class-D amplifiers have a patent-applied-for design that includes a dual feedback circuit that “continuously monitors and controls both the current and voltage of the output devices.” The PowerMatch “QuadBridge” outputs can be configured in single, dual, or quad channel modes, which allows 4kW of power to be allocated between 2 to 8 channels. These software-selectable configurations range from 8 channels at 500 watts, 4 channels at 1,000 watts, 2 channels at 2,000 watts, or mixed combinations. Dual or quad modes can drive either low-impedance or 70V or 100V loads. The PowerMatch amplifiers’ “PeakBank” power supplies are a “regenerative 4-quadrant power supply with fast-tracking PFC [power factor correction that] supports high efficiency, while improving the peak burst power for superior transient response and current reserve for bass impact.The PM8500 delivers 4kW rated power from a single AC mains outlet, with greater than 75 percent conversion efficiency.”
Available in two versions, the PM8500 provides USB connection for single-unit setup and control using Bose ControlSpace V3.0 or higher software. The PM8500N adds Ethernet connectivity for network control and monitoring of multiple “N” version amplifiers. PowerMatch amplifiers include integrated audio DSP for loudspeaker EQ, crossover (550 Hz for the RM7020), delay, and limiting. Bose’s ControlSpace Designer software helps the user determine configuration and provides system control.