Rare Acoustic Research 10 Woofer Pair (1 Powered, 1 Passive) – DIY/Project Use Only. ? Holiday Sale: Save over 15%! Offer ends December 31, 2025! Acoustic Research matched 10 speaker driver pair: includes one powered woofer and one passive radiator, both tested and cleaned-ready for speaker building, enclosure upgrades, or restoration projects. No cabinets or crossovers included. 1x 10 AR powered woofer driver (powered, tested for output). 1x 10 AR passive radiator driver (cone and spider tested for action). Tested with simple signal generator and amplifier for working voice coils. Both units cleaned and ready for DIY application. Fits AR, Advent, and other classic 10 custom speaker projects. No cabinet, no grills/transducers/crossovers or enclosures included. Project/repair parts only: not plug-and-play or stand-alone speakers. Used, cleaned, and signal-tested, no open or shorted coils. Cosmetic wear or minor dust/marks per age; please inspect photos for detail. No mounting hardware, enclosure, or crossover supplied. Higher value for matched, working pairs; rarely available for DIY use. Clearance price reflects driver-only sale (no cabinets or crossovers). Carton Size: 14″ x 12″ x 10. 29+ years experience in vintage audio parts. Tested, described, and photographed with full honesty. Prompt support for builder and restorer customers. ? Build your dream DIY speakers with AR drivers. Black Friday Sale Ends December 31, 2025!