ASW 2500

About the ASW 2500

The B&W ASW-2500 is an active subwoofer designed primarily for multi-channel playback and home theater use, but it is also fast and accurate enough for demanding audiophile music applications. It features a 10-inch (250 mm) diameter long-throw woofer made from a resin-impregnated composite of paper and Kevlar fibers, which provides strength and resistance to deformation under stress. The woofer is supported by a mushroom structure center cap and double damper. The subwoofer is powered by a specially developed lightweight switching amplifier delivering 700 watts continuous power and 1 kW peak power. It offers a frequency response adjustable between approximately 20 Hz to 150 Hz, with a low-pass filter adjustable from 50 Hz to 150 Hz and a fixed high-pass filter at 80 Hz. The unit includes line-level input and output connections, a phase inversion switch, two equalization settings, a crossover bypass switch, and an auto-on/off circuit for energy saving. The enclosure is a sealed design available in black ash or cherry wood veneer finishes. Its compact dimensions (approximately 315 mm width x 315 mm height x 400 mm depth) and weight (around 23 kg) make it suitable for smaller rooms where it delivers tight, deep bass down to about 22-25 Hz. The ASW-2500 was released in November 2001 and is no longer in production but remains highly regarded for its build quality and sound performance.