BOSE 501 Series IV speaker, Amazing Condition! Photo #689642 - US Audio Mart
Lot - Pair of Bose 501 Series IV Walnut Finish Speakers
BOSE 501 specifications Bose
Bose 501 Series II, grille removed, showed angled tweeter array. Far better than their new speakers! | Bose speakers, Vintage speakers, Vintage electronics
Bose 501 Original Series Help?!! | Audioholics Home Theater Forums