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Optimus Prime\'s Stereo Equipment
Old School Audio - Old School Prices - Professionally TestedProduct Description
The Yamaha YST-SW012 is a compact powered subwoofer featuring Yamaha\'s Advanced YST (Yamaha Active Servo Technology) circuit, which uses negative impedance drive to cancel back-EMF from the woofer and deliver tight, controlled bass from a small enclosure. This unit has been tested and confirmed fully working — amplifier, driver, and port all perform as designed. Cosmetically it shows light surface scratches and scuffs on the cabinet consistent with normal use, but the cabinet is solid and structurally sound.
Please review all photos for details.
Highlights At A Glance
- ✔ Fully tested and verified
- ✔ Good cosmetic condition with light surface scratches and scuffs from use
- ✔ Free 30-day returns
- ✔ Fast, insured shipping
Testing & Verification
The internal amplifier was powered up and driven through the RCA input, with volume control verified across its full range. The woofer driver was tested for clean output at multiple levels with no distortion, rattles, or buzzing, and the front-firing driver and side port were inspected and confirmed clear. Power switch was tested on and off normally.
Shipping & Returns
Fast, insured shipping from Minnesota. Free 30-day returns. Item is carefully packaged for safe delivery.
