Yamaha YST-SW012 100W 8-Inch Front-Firing Subwoofer
$125.00
The woofer in this one has been replaced, which removes the single part of a used subwoofer most likely to fail. An 8-inch front-firing shielded cone under Advanced YST II servo control, 28 Hz to 200 Hz, 50 watts continuous and 100 dynamic, in a cabinet 11.4 inches on a side. RCA LFE input, variable level. The front grille is missing and the price reflects it. Level 1 serviced; cabinet good.
1 in stock
Yamaha YST-SW012 100W 8-Inch Front-Firing Subwoofer
A good-cosmetic-condition Yamaha YST-SW012 active subwoofer with a freshly replaced woofer driver — a compact, front-firing 8-inch powered sub featuring Yamaha’s Advanced YST II (Active Servo Technology II) and QD-Bass technology, ideal as a subtle, room-friendly bass reinforcement for a small-room music or home-theatre system.
The YST-SW012 is built around Yamaha’s Advanced Yamaha Active Servo Technology II, a closed-loop feedback design that pairs a high-current amplifier with an optimised driver / port system to extract genuine low-frequency extension from a remarkably compact cabinet. The result is rated frequency response down to 28 Hz from a sub that occupies just 11.4 inches on a side — useful for music, dialogue reinforcement, and the lower end of film effects in apartments, condos, dens, and small-to-medium living rooms where a larger sub simply will not fit.
The 8-inch front-firing magnetically shielded cone driver is paired with Yamaha’s Linear Port for clean, low-distortion port output, and the front-firing design gives the sub flexibility for placement against a wall or under a console. Power output is 50 watts continuous / 100 watts dynamic, with a variable level control on the rear panel. Connectivity is straightforward via a single RCA LFE input — clean and simple, and fully compatible with the dedicated subwoofer output of any modern AVR, integrated amp, or active-speaker setup.
The most important thing about this particular unit: the 8-inch woofer driver has been replaced and the sub has been bench-tested as fully working and sounding great. The driver is the part of any used subwoofer most subject to age-related failure (foam surround rot, voice-coil rub, suspension fatigue), so a fresh driver materially extends the practical service life of the unit and removes the single biggest reliability risk that buyers worry about when shopping used subs.
Please note that the original front grille is not included with this unit. The driver is fully functional and visually presentable, but buyers with young children, pets, or high-traffic placement should plan for that. The price has been set with the missing grille fully accounted for.
Cosmetically, the cabinet presents in good condition, with the typical light handling marks consistent with careful use and no significant blemishes to the cabinet or rear panel.
This Yamaha YST-SW012 has undergone our Level One service and testing which should ensure many more years of reliable performance ahead.
Product highlights:
8-inch front-firing active subwoofer
Advanced Yamaha Active Servo Technology II (Advanced YST II)
QD-Bass front-firing port technology
Magnetically shielded driver — safe placement near CRT displays
50 W continuous / 100 W dynamic amplifier output
Variable level control
RCA LFE / line input
Compact cabinet — easy placement in small rooms
Freshly replaced woofer driver
Specifications:
Type: Active front-firing subwoofer with Advanced YST II and QD-Bass
Driver: 8-inch (200 mm) magnetically shielded cone
Continuous output: 50 W
Dynamic power: 100 W into 5 ohms
Frequency response: 28 Hz – 200 Hz
Input sensitivity: 50 mV (50 Hz, 50 W / 5 Ω)
Inputs: RCA LFE / line
Front grille: Not included
Condition: Good cosmetic, fresh replacement woofer
Dimensions (W x H x D): 11.4 x 11.4 x 12.9 inches (290 x 290 x 328 mm)
Weight: 18.7 lbs (8.5 kg)
A good-cosmetic-condition Yamaha YST-SW012 active subwoofer with a freshly replaced 8-inch woofer driver — a compact, room-friendly powered sub that adds welcome low-end reinforcement to any small-room music or home-theatre system, with the practical service life of a much newer unit thanks to the fresh driver.
Backed by Radique Audio’s 90-day limited subwoofer warranty and our Perpetual Trade-Back Program, you can purchase with confidence.
| Weight | 21 lbs |
|---|---|
| Dimensions | 17 × 15.4 × 15.4 in |
Yamaha began as an organ maker in Hamamatsu, Japan, in 1887. It made gramophones from the 1920s and began hi-fi with the 1954 HiFi Player. We carry Yamaha AV receivers, vintage stereo receivers, CD players, subwoofers and speakers. We've had more than 280 Yamaha listings so far, covering nearly 200 different models. Every used Yamaha here is inspected, tested and serviced as required, then photographed in-house and covered by our Bumper-to-Bumper Warranty and Perpetual Trade-Back Program. Every AV receiver we list is tested input by input on our bench: each HDMI input and output, the analog, optical and coaxial inputs, the subwoofer outputs and the wireless features where it has them. Don't see the model you want? Tell us on First Dibs and we'll email you when one arrives.
Yamaha models we've sold most often: the SW-3 subwoofer, the NX-E270 surrounds, and the RX-V1400, RX-V850 and RX-V800 AV receivers.
The Yamaha hi-fi story
Torakusu Yamaha built his first reed organ in Hamamatsu in 1887 and founded Nippon Gakki in 1897; the company was renamed Yamaha Corporation in 1987. Yamaha calls the 1954 HiFi Player its first audio product, and dates its first Natural Sound (NS) speakers to 1967.
1970s hi-fi. The CA-700 and CA-500 of 1972 were Yamaha's first integrated amplifiers, and the CA-1000 of 1973 could switch its output stage between Class A and Class A/B. The NS-1000 and NS-1000M speakers of 1974 used beryllium dome drivers, and the NS-10M of 1978, sold for home use, became a studio monitor.
CD and surround. The CD-1 of 1982 was Yamaha's first CD player. The DSP-1 of 1986 was a Digital Sound Field Processor, and in 1993 the RX-V870 became the first Yamaha receiver with CINEMA DSP. The RX-V992 of 1997 added built-in Dolby Digital decoding.
AVENTAGE. The AVENTAGE (RX-A) receiver line launched in 2010, above the RX-V range.
Which Yamaha is which?
CA integrated amplifiers (1972 to about 1979): the CA-500, CA-700, CA-1000 and CA-2000, followed by the A-series.
CR receivers (mid-1970s to about 1980): the CR-1000, then the CR-620 to CR-2020 generation of 1977 to 1979.
NS speakers: from the NS-690 and the beryllium NS-1000 to the NS-10M bookshelf speaker, made from 1978 to 2001.
CD players: from the CD-1 of 1982 to the CDX and GT-CD models.
RX-V AV receivers (from at least 1991): such as the RX-V800, RX-V850 and RX-V1400 we sell often. Built-in Dolby Digital arrived in 1997, YPAO room calibration in 2003 and HDMI in the mid-2000s.
RX-A AVENTAGE (from 2010): the step-up AV receivers. The RX-Z models were the flagships until 2007.
Buying used Yamaha: what to check
Formats. On an AV receiver, check what it decodes and connects to: Dolby Digital from 1997, room calibration from 2003, HDMI from the mid-2000s.
HDMI boards. On modern AV receivers, HDMI is usually the first thing to fail. We test every HDMI input and output before listing.
CR receivers. Owners suggest asking whether service bulletins were done on a CR-2020, and expect scratchy controls and burnt-out dial lamps on any unserviced unit.
NS speakers. Check that the tweeters on an NS-10M are original and both work, and inspect the beryllium domes on an NS-1000, since Yamaha stopped making beryllium diaphragms in 1997.
Everything we list is inspected, tested and serviced as required here, and comes with our warranty.
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