YST-SW40

This item has been discontinued or updated and may or may not be still available at your local dealer.

Yamaha's Active Servo Technology is a complementary amplifier/speaker system utilizing negative impedance feedback in the amp and a Helmholtz resonator in the speaker to provide strong and accurate bass from small speakers.

A little over a foot high, the slim-line YST-SW40 has a small footprint and can easily fit in small to medium sized rooms.

Yamaha has placed the manual on/off and variable high-cut filter controls on the front panel, where they are easy to get to.

The complementary Active Servo Technology system of the YST-SW40 features an 8-inch driver and 50-watt amplifier--more than enough to deliver deep, rich bass in moderate sized music or home theater systems.

The subwoofer is magnetically shielded so it can be placed near a TV monitor or receiver without fear that it will degrade the picture.

The user adjustable continuously variable high-cut filter sets the highest frequency the subwoofer will deliver. It can be set anywhere from 40 Hz - 140 Hz. For instance, if the filter is set at 75 Hz, only frequencies 75 Hz or below will be delivered by the subwoofer.

For convenience, the YST-SW40 has a signal sensing circuit. When the subwoofer detects an audio signal, it turns its power on. When it senses no signal for several minutes, it shuts itself off.

Yamaha's heavy-duty speaker terminals accept banana plugs, spade connectors, and a variety of speaker wire, including heavy gauge cable.