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YST-SW160
Digital Home Theater Subwoofer
With dual 20cm (8") drivers,
Advanced YST and a 150W high
power amplifier, this subwoofer is
capable of delivering a powerful
punch. There’s a BASS (Bass Action
Selection System) mode for automatic
adjustment of frequency response,
Phase Control, Auto Standby and a
High Cut Filter.
YST-SW90
Digital Home Theater Subwoofer
An all-discrete 100W high power
amplifier and the highly efficient
Advanced YST system give this
subwoofer exceptional performance
capabilities. A Continuously Variable
High Cut Filter ensures best matching
with room conditions and other
speakers. Plus Auto Standby and more
in a slim design.
YST-SW45
Digital Home Theater Subwoofer
Using the Advanced YST system to
deliver deep bass with 70 watts of
power from a compact body, the
YST-SW45 provides tremendous
value. It also offers useful features like
Continuously Variable High Cut Filter,
Auto Standby and Two-Way Input. A
great choice for anyone considering a
dual subwoofer system.
Conventional speaker
Speaker + YST Subwoofer
Increased bass reproduction capability
20 50 100 20,000 (Hz )
(dB)
90
80
70
deep bass tones, the Advanced YST system
includes a negative output impedance
amplifier. By precisely matching it to the
Helmholtz system, the combined amp-
speaker impedance become zero. This
enables the compact cabinet to reproduce
bass frequencies with close to perfectly flat
response. You’re assured of getting the
highest levels of sound pressure and overall
performance.
Advanced Yamaha Active Servo Technology
(Advanced YST) combines the excellent
imaging and point source characteristics of
small speakers with the superb bass response
of large ones. The key to its success is a
Helmholtz resonator—a small port in the
speaker cabinet. The cabinet volume and port
size are scaled to an exact ratio, which causes
small amplitude input signals to be magnified
without distortion. And because zero speaker
impedance results in the best reproduction of
To fully optimize bass performance in a high-
end system, two subwoofers are
recommended.