YST-SW150 Yamaha Sub Woofer |
Price: Original MSRP: $399.00 - 150.00 or Best Offer
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| Ad # | 1004971 |
| Contact | Tom Ehrisman |
| Address | |
| City | Hooksett |
| State | NH |
| Zip | 03106 |
| Phone | (H) 603-232-0550 (C) 603-620-6180 |
| Web site | Click to visit |
| Type | Not Applicable |
| Created | October 8, 2008 |
| Updated | November 2, 2008 |
| Expires | April 9, 2009 |
| Viewed | 32 times |
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The YST-SW150 is an active servo technology subwoofer. Exclusive Yamaha system allows the amp and the speakers to work together to boost the power of a stereo speaker's output. Instead of an ordinary woofer unit, the speaker has a Helmholtz Resonator that intensifies the sound waves inside until they are output as much stronger sounds. Total impedance (resistance to current flow) has to be zero, so the amp's circuitry produces negative impedance, canceling out the speaker impedance. The result is bass sound that is very powerful. Phase Control allows you to adjust speaker phasing to best suit the room's acoustic conditions and different sound source. You can set the cut-off frequency from 40 to 140 Hz, at the position where the subwoofer output best matches the other speakers, so the overall sound is balanced and natural. This subwoofer will turn itself on automatically when it senses a music signal. It will also turn itself off automatically shortly after the music signal stops.
You can also contact me at: tehrisman@aol.com with any question(s). Please put; Item(s) You are selling on Craigslist, in title bar.
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