What is the impact of hiding the B139 in the Kef Concord? | Audioholics Home Theater Forums
KEF B139 SP1044 "Race Track" bass drivers PAIR Photo #2318845 - US Audio Mart
VINTAGE SPEAKER PARTS-KEF B139 CLASSIC WOOFERS PAIR..PRICED EACH | eBay
KEF b139 in CB? | diyAudio
Rare KEF B139 SP1333 - matched, NOS (2nd pair) Photo #2616868 - UK Audio Mart
Everyone, meet my new girl, (Janie5, SM Labs, lol) Rogers Labs early Summit Elan Series modded with a Kef B139 belly and a phat rear facing Klipsch Tangent Passive inverted surroud 12"
Vintage KEF B139 / 6171 Oval Woofer Bass Driver Made IN England / Pair