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Optimus Prime's Stereo Equipment
Old School Audio - Old School Prices - Professionally Tested
Product Description
Professionally tested and confirmed fully functional. Speakers were tested using a dedicated audio source to verify proper sound output, clarity, and balance.
Good cosmetic condition with only minor wear from use. Grill Status shown in photos (Not included, if not shown). Please review all photos for details.
Highlights At A Glance
Fully tested and verified
Clean cosmetic condition
Free 30-day returns
Fast, insured shipping
Testing & Verification
Each speaker tested individually for sound output and clarity
Drivers verified to be active with no distortion at normal listening levels
Speaker terminals inspected and confirmed secure
Our Passion for Audio
We are audio enthusiasts who grew up with this gear. Every receiver, amp, and deck is treated as if it's going into our own system. We revive classic sound to make it affordable for everyone.
Why Buy From Us
Consistent 5-star eBay feedback
Professionally verified vintage gear
Careful packaging, guaranteed authentic
Support after the sale - message for help anytime
Shipping
Shipped daily via UPS, FedEx, or USPS. Every unit double boxed, cushioned, and tracking provided automatically for peace of mind.
Free Returns & Buyer Confidence
Free 30 Day Returns. Buy with confidence - if it's not as described or doesn't meet your expectations, we'll make it right! Proud of our 5-star feedback and fast shipping.
Thanks for supporting small business - keeping classic sound alive!
Optimus Prime Stereo - Est. 2017
At USD$110 for a used SoloCinema XTR subwoofer, you're looking at a solid entry point. This 8-inch wireless sub originally retailed as part of a USD$1,999 system around 2012, so finding just the subwoofer alone at this price is reasonable—likely 20–30% of what a comparable standalone wireless sub would cost new. Used pricing for this model typically ranges USD$80–150 depending on condition and functionality, so this sits comfortably in fair territory, not a steal but not inflated either.
Before committing, verify the wireless pairing still works reliably with the soundbar (or confirm it pairs with your own equipment) and check for any rattles or distortion at volume—the 250-watt class-D amp and sealed 8-inch driver are robust, but age can affect capacitors. Confirm the power cable and any proprietary wireless receiver are included; replacements aren't trivial to source for a 14-year-old product. Listen for any hum or hiss in standby mode, which can indicate aging power supply components.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Definitive Technology emerged in 1990 from Owings Mills, Maryland, founded by Sandy Gross—a former Polk Audio founder—alongside Don Givogue and Ed Blaise. The company was born during the digital audio revolution of the early 1990s, driven by a collective passion for cinematic sound quality and home theater excellence. Today, Definitive Technology operates as a division of Sound United under DEI Holdings, maintaining headquarters in Vista, California, where it continues its legacy of audio innovation.
The brand specializes in home theater audio systems, loudspeakers, soundbars, and headphones, positioning itself as a comprehensive solution for both dedicated audiophiles and mainstream consumers seeking quality home entertainment. Their product portfolio emphasizes integrated audio design that balances sonic performance with aesthetic integration into living spaces. The company has built its reputation on engineering sophistication and meticulous attention to sound quality across its range.
Definitive Technology occupies the premium segment of the consumer audio market, recognized among the world's leading speaker manufacturers. The brand commands respect for decades of award-winning product development and consistent delivery of high-fidelity audio systems. Rather than pursuing niche boutique positioning, Definitive Technology targets discerning listeners who demand professional-grade sound quality without sacrificing design elegance—a middle-to-premium positioning that appeals to both serious home theater enthusiasts and quality-conscious consumers seeking reliable, well-engineered audio solutions.
See all Definitive Technology listings on RADAR.
