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Five Ways to Enjoy the Power and
of Yamaha Bass.
Subwoofers YST-SW800 YST-SW320 YST-SW160 YST-SW90 YST-SW45
Advanced Yamaha Active Servo Technology Yes (Advanced YST) Yes (Advanced YST) Yes (Advanced YST) Yes (Advanced YST) Yes (Advanced YST)
QD-Bass (Quatre Dispersion Bass) Technology Yes Yes
High-Efficiency Power Amplifier Yes Yes
High-Efficiency Power Supply Yes
Drivers 25cm (10") multi-range, 25cm (10") multi-range,
Dual 20cm (8") multi-range
20cm (8") multi-range 20cm (8") multi-range
extra-long stroke design extra-long stroke design
with dual-bias system
Magnetic Shielding Yes Yes Yes Yes Yes
High Cut Filter (Continuously Variable Control) 40–140 Hz 40–140 Hz 40–140 Hz 50–150 Hz 50–150 Hz
Phase Control (Normal or Reverse) Yes Yes Yes Yes
Auto Standby Yes Yes Yes Yes Yes
BASS (Bass Action Selector System) Yes Yes Yes
Two Input Connections (Speaker or Line Level) Yes Yes Yes Yes Yes
2-Way Binding-Post Speaker Terminals Yes Yes Yes Yes Yes
Output Power 1,000 W 250 W 150 W 100 W 70 W
Frequency Response 18–160 Hz (–10 dB) 20–160 Hz (–10 dB) 20–160 Hz (–10 dB) 23–170 Hz (–10 dB) 30–200 Hz (–10 dB)
Dimensions (W x H x D) 390 x 482 x 420 mm 340 x 432 x 370 mm 235 x 602 x 463 mm 235 x 485 x 409 mm 235 x 365 x 318 mm
15-3/8" x 19" x 16-9/16" 13-3/8" x 17" x 14-9/16" 9-1/4" x 23-11/16" x 18-1/4" 9-1/4" x 19-1/8" x 16-1/8" 9-1/4" x 14-3/8" x 12-1/2"
Weight 24 kg; 52.9 lbs. 17 kg; 37.5 lbs. 20 kg; 44.9 lbs. 14 kg; 30.9 lbs. 9 kg; 19.8 lbs.
YST-SW800
Digital Pro Series Subwoofer
This subwoofer is the best that Yamaha
has to offer. New design, new
technology, and a new dimension of
power bass performance. Featuring
QD-Bass technology and Advanced YST,
it also introduces a new Dual-Bias driver
and a new power supply. Experience
bass down to 18Hz with up to 1,000W
of power: awesome!
YST-SW320
Digital Pro Series Subwoofer
Another powerful demonstration of the
advantages of QD-Bass technology. The
YST-SW320 disperses 250W of pure bass
power in four directions from its down-
firing drivers. The 25cm (10”) driver has
an extra-long stroke design for greater
stability and durability. Advanced YST
adds to the outstanding performance.