Yamaha YST-SW315 250W Powered Subwoofer (Black)

Yamaha SW315 250Watt 10" Powered Subwoofer
Yamaha's SW315 offers 250 high-efficiency watts--enough power to deliver shattering, movie-theater-like bass effects. Full enjoyment of Dolby Digital and DTS surround sources requires deep, clear bass. This is especially true with 5.1- and 6.1-channel sound, because the ".1" channel is dedicated to the bass frequencies. That means you not only need a subwoofer, but a high-power subwoofer capable of handling extremely low frequencies. The SW315's down-firing 10-inch driver translates power into clean bass sound, and the SW315 boasts a frequency response of 20 to 160 Hz (-10 dB at the extremes of the range).

The SW315 delivers high power at deep bass frequencies, with excellent stability and low power consumption. This is made possible by the sub's highly efficient PWM (pulse-wave modulation) digital-drive power amplifier. The amplifier achieves superior conversion efficiency by minimizing power loss from the power transistors. It delivers stable audio power while minimizing AC power consumption and heat production. As it requires no output filter coil, it's extremely quiet with low distortion.

Yamaha's patented Advanced Active Servo Technology (Advanced YST) generates incredible bass from small speaker enclosures. This system uses negative-impedance feedback in the amp and a Helmholtz resonator in the speaker to provide strong and accurate bass.

Features:

	QD-Bass (Quatre Dispersion Bass) Technology
	Advanced Yamaha Active Servo Technology
	A/V ready, magnetically shielded for video use
	Built-in 250 Watt high power amplifier
	10" down-firing driver
	Frequency Response: 20Hz-160Hz
	Dimensions (W x H X D): 13-3/8" x 17" x 14-9/16"
	Weight: 37.4 lbs.
	Auto power on/off
	Line level and speaker level connections
	40Hz to 140Hz continuously variable high-cut filter
	High cut slope:-24dB/octave
	Volume control
	Phase normal/reverse switch
	BASS selector switch
	Measures 13.75 x 17 x 15.1 inches (W x H x D)
	10-inch driver with high-efficiency, 250-watt PWM digital amplifier
	Advanced YST ensures that the speaker and amplifier work together to create perfectly linear speaker motion
	BASS (Bass Action Selector Switch) tailors the sub's output for video or music at the touch of a switch
	Yamaha's QD-Bass technology radiates bass in all directions for greater impact

Comes with 2 year limited warranty through Yamaha