Bag End 's PD10E-I self-powered subwoofer Barrington, IL (August 30, 2007)--Bag End Loudspeaker System's double-10 subwoofer system is now available in a self-powered version--the PD10E-I. The PD10E-I is specifically designed to fit into locations where space is at a premium. The system uses the company's exclusive Infra technology that is intended to provide high-fidelity yet compact bass sound.
The PD10E-I subwoofer system is designed to operate below resonance by utilizing the external Infra dual-integrator processor, and is 1/2 to 1/4 the size of conventional systems, yet offers a lower frequency response. The system provides flat frequency response down to as low as 8 Hz.
The PD10E-I carries the further distinction of being self-powered, thanks to the built-in Minima One internal modular amplifier, creating even more space savings. The Minima One is a 1,000-watt, hi-fidelity, high-efficiency amplifier that weighs 5 lbs.
"The Minima One onboard powered system option insures our end-users the reliable high-performance, powered solution that sound designers and sound reinforcement contractors have been demanding," Bag End president Jim Wischmeyer said.
The Minima One is more than 80 percent efficient, says Bag End, providing more power to the loudspeaker and creating less heat in the amplifier than conventional designs. Incorporating patented technology, the comparison circuit of the module corrects each individual cycle. On average, every 4 microseconds, the one-cycle modulator transforms and amplifies the input signal into the natural pulse width modulation. Switching at 250 kHz with the single cycle error correction is said to ensure low distortion and high reliability.
In addition, the power-factor-corrected AC power input automatically, and continually, adapts to any voltage between 88 and 270 volts, thus making it convenient to power, and stable to use, on any power grid, anywhere in the world.