Panasonic SB-HW860 Sub woofer

The Panasonic SB-HW860 is a passive Kelton subwoofer, originally part of premium home theatre systems like the SC-BT100 Blu-Ray Home Theatre Sound System. It is designed to deliver deep bass through a specialized enclosure that uses internal air pressure to drive the output.

Key Specifications
Type: Passive Subwoofer (requires an external amplifier or receiver to power it).
Power Handling: 250 W (RMS/Max).
Impedance: 6 Ohms.
Frequency Range: 35 Hz to 200 Hz.
Dimensions: 180 x 350 x 315 mm.
Connectivity: Wired (proprietary Panasonic speaker terminal or standard wire clips).
Driver: Features a Kelton-style design, often utilizing a dual-chamber system for enhanced low-frequency response.

Compatibility
This subwoofer was frequently bundled with the SB-HS860 floor-standing speakers and the SB-HC560 centre speaker as part of a 5.1 channel surround sound setup. While it was specifically built for Panasonic receivers, it can be used with other home theatre systems provided the receiver supports a 6-ohm passive subwoofer and can output up to 250W.