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This $1,800 asking price is ambitious, sitting well above the 75th percentile of $1,220 and the median of $800 for recent used Sunfire Theater Grand listings; it’s not a bargain unless the unit is in pristine, original-owner condition with all accessories.
The TGA-7407 (likely the 7401 variant) is a respected 7-channel powerhouse delivering 400W per channel into 8Ω, prized for its clean, dynamic performance in high-end home theater setups. If this listing includes the original box, manuals, and ventilation accessories—and shows no signs of overheating or channel dropouts—it could still be a worthwhile buy for enthusiasts who value Sunfire’s rare, robust multi-channel design, but only if the seller justifies the premium with documented care and completeness.
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.
