The ASW650 has all the attributes of the ASW600, but is more suited to larger rooms because of its greater output capability, achieved by a combination of a larger cabinet, driver and amplifier.

In this case the driver is a 300mm (12 in) unit that can go lower in the bass that its smaller sibling. Its capabilities are fully exploited by the powerful 200W on-board amplifier.

Like all B&W subwoofers, two or more units can be daisy-chained together should even higher levels be needed.

Technical Specifications

Description	Active closed-box subwoofer system
Dimensions	Height: 417mm (16.4 in) not including removable spike feet Width: 415mm (16.3 in) Depth: 495mm (19.5 in) allow extra 50mm (2 in) clearance for ventilation
Net Weight	25.5kg / 56 lb
Frequency Range	-6dB 20Hz – 40/180Hz adjustable (EQ at A)
Frequency Response	-3dB 25Hz – 33/150Hz adjustable (EQ at A)
Low-Pass Filter	Active 2nd-order, variable cut-off frequency
High-Pass Filter	Line level: active 3rd-order at 80 Hz Speaker Level: passive 1st-order at 80Hz into 8 ohm resistor (response of passive filters dependent on load impedance)
Amplifier	Power output: 200W continuous Signal/Noise: 90dB Input Impedance: 22kohms Functions: Volume level - Low-pass filter frequency - Low-pass filter bypass - Bass roll-off alignment - Phase 0/180 - Auto sense on/standby Line Input (RCA Phono) Speaker level input (binding posts) Line Output (RCA Phono, high-passed) Link Output (RCA Phono, parallel to Line In) Speaker level output (binding posts, high-passed)
Drive Unit	300mm (12 in) dia paper/Kevlar® cone long-throw
Finish	Cabinet: Black Ash or Sorrento (light oak) vinyl Grille: Black Cloth