This thread is older than the hills, (and this post is more for my post count) but I just picked a pair of Technics SB 4500As. I lopped off the tweeter box, reinforced the cabinets, added some damping material, mounted an E-wave crossover, CD and waveguide, added gasket material to the woofers and fired them up. DARN! These sound great and are 93dB. What's not to love? Now, where to use them? AND, a guy came by today who is giving me some vintage Wharfdales. I don't know what model, but fingers are crossed.