Product Description

The Yamaha Advanced YST II and QD-Base Subwoofer is an outstanding combination of power, depth and clarity. The QD-Bass(Quatre Dispersion) and high-efficiency amplifier delivers bass you can feel, while the BASS (Bass Action Selector System) will make both albums and movies sound their best. When it comes to delivering rich, accurate lower bass responses for your stereo or home-theater system, you'll find this subwoofer to be an outstanding performer. 8 multi-range driver Output - 150 watts Frequency Response - 25 to 180 Hz Auto Standby with Sensitivity Selector Wood Finish cabinet Color - Black Dimensions(WxHxD) - 12-3/8 x 14-15/16 x 14-3/4 Weight - 28.7 lbs.

Product Details

• Amazon Sales Rank: #25595 in Consumer Electronics
• Color: Black
• Brand: Yamaha
• Model: YST-SW325
• Number of items: 1

Features

• 150-watt active subwoofer with high-efficiency PWM amplifier and luxurious wood finish cabinet
• 8-inch multi-range cone woofer with magnetic shielding; 25 Hz to 180 Hz frequency response
• Advanced YST II system produces stable, energetic low-range tones; 50 to 150 Hz high-cut filter
• QD-Bass system radiates sound in 4 horizontal directions; Bass Action Selector System (BASS)
• Auto standby mode; measures 12.38 x 14.94 x 14.75 inches (W x H x D); 2-year warranty

Amazon.com Product Description
Digital 5.1, 6.1, and 7.1 audio sources require not just a subwoofer, but a subwoofer capable of handling extremely low frequencies and high power levels while delivering a deep, accurate, and clear bass response. Enter the YST-SW325, which employs Yamaha's Advanced YST II system and QD-Bass technology to bring out the full potential of Dolby Digital and DTS surround sound formats. The sub starts with an 8-inch multi-range cone woofer and a PWM high-efficiency 150-watt amplifier. The driver produces a frequency response of 25 Hz to 180 Hz in conjunction with the linear port, which helps minimize extraneous noise. The PWM amplifier, meanwhile, is designed to deliver high power outputs at deep bass levels while consuming very little power itself.

The sub's real innovation, however, derives from the Advanced Yamaha Active Servo Technology II system, which optimizes the speaker impedance to create more stable, energetic and accurate low-range tones. The system also drives the speaker cone with tighter control than other subs, resulting in a more natural-sounding, explosive performance. The QD-Bass (Quatre Dispersion Bass) technology ups the ante by using its down-firing drivers and square, pyramid-shaped reflective plates to radiate the sound efficiently in four horizontal directions. This negates any effects caused by the floor surface while reducing unwanted resonance and distortion. The extraordinary power produced by the QD-Bass system also lets you place the YST-SW325 virtually anywhere in the room without suffering a dropoff in performance.

Adding to the sub's versatility is a Bass Action Selector System (BASS) that automatically switches between movie and music modes to ensure an optimum frequency response for each. Other features include a luxurious black wood finish cabinet, a 50 to 150 Hz high-cut filter (continuously variable), an auto standby mode with a sensitivity selector (high, low, and off), and magnetic shielding against video interference. The subwoofer measures 12.38 by 14.94 by 14.75 inches (W x H x D) and is backed by a two-year warranty on parts and labor.

What's in the Box
YST-SW325 subwoofer, nonskid pads, user's manual.

Customer Reviews

Great product
Bought this at Amazon for only 40% of the original price. Deal was a steal, and the speaker rocks! Has got it hooked to my Yamaha RX-1600 receiver! Movie never sounded better! In-fact, even the music sounded a lot better than what we have been listening to. It took me two weeks doing my R&D and was worth every penny that I spend on this!
Great Product!

alot of bass and worth every penny!
If you can afford this subwoofer buy it this thing rocks i plug it up and testing and playing movies-music, i could feel the bass two room away it felt like i was in the room with it and the power of my receiver was at 1/3 the way using all yamaha with bose 301 front and surround my wife keep telling me to turn it down. I haven't heard 515 but is the best money i spent got it for $229.00 with free shipping, you wouldn't be disappointed with it.

Works very nicely
I have had several Sw over the years. Nice clean lows, it is relatively light and medium in size. Lows are clean and nice. Remember this is a reasonably priced SW - there is no remote nut the controls are easy to reach when necessary. For the money it is a bargain. I own another SW but it weighs a 'ton'.