RADAR is a price search engine. We link to the original listing — we never sell direct. Transactions happen on the source site.
For Sale is a SUNFIRE True 10" Active Subwoofer 2700W; Tested and it works great and is in very nice condition.-Power: 2,700-watt RMS Tracking Downconverter amplifier.-Drivers: One active 10" driver + one passive 10" radiator.-Frequency Response: 18 Hz to 100 Hz (plus 0-3 dB).-SPL: >110 dB, including room gain.-Controls: Variable volume, 35Hz–100Hz crossover, and 0-180° phase control.-Inputs: Speaker level and line level (RCA).-Dimensions: 11" x 11" x 11" cube.-Weight: Approximately 48 lbs
Asking USD$595 for a Sunfire True 10 is solidly fair, maybe slightly firm. The True 10 was Sunfire's workhorse compact sealed sub—punchy, reliable, and built to last. Used examples typically move in the USD$450–USD$750 range depending on condition and whether the original remote and documentation are present. At USD$595, this lands right in the middle of that band. The 2700W rating is marketing speak (peak), but the sub delivers genuine output for its footprint. The "tested" claim is a plus; verify it powers on cleanly and doesn't exhibit any hum or rattle at moderate volumes.
Before committing, confirm the amplifier hasn't been recapped recently (or needs recapping soon—these are 15+ year old units by now). Ask the seller whether the power cord, IEC connector, and low-level RCA cables are included, and push for a demo if possible. Check for any cone damage, torn gaskets, or loose internal components by listening for rattles. Sunfire subs are tough, but age and thermal cycling take their toll on capacitors. If it passes a full power-on test without hum or distortion, you've got a solid buy.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Sunfire was founded in 1972 by legendary audio engineer Bob Carver in the United States. The brand emerged from Carver's unconventional approach to amplifier design, beginning with a graduate-school assignment to simulate earthquakes—a project that sparked decades of innovation in home audio. Headquartered in Petaluma, California, Sunfire is now part of Core Brands, a division of Nortek Technology Solutions that consolidates ten prominent audio and control brands under unified marketing and product development.
The brand has built its reputation primarily around subwoofers and power amplifiers. Sunfire pioneered the concept of true subwoofers in the early 1990s—compact, sealed designs with dramatically increased driver excursion that deliver powerful bass from remarkably small enclosures. The company's signature Tracking Downconverter power supply technology enables high efficiency and low distortion by dynamically matching output to instantaneous demand. Beyond subwoofers, Sunfire manufactures surround-sound processors, in-wall speakers, satellite loudspeaker systems, and premium home theater electronics.
Sunfire occupies the high-end segment of the consumer audio market, positioned for serious audiophiles and home theater enthusiasts willing to invest in performance. The brand's innovations—particularly compact, high-output subwoofers and efficient amplifier designs—have influenced industry standards and remain respected among discerning listeners. While not a household name like some mass-market brands, Sunfire maintains strong credibility within the audiophile community for uncompromising engineering and sonic performance.
See all Sunfire Audio listings on RADAR.
