I'd recommend a good 2nd hand pair of Infinity IRS Sigma's. The last pair that went up for sale the guy was asking $2750, making this speaker an awesome bargain! The IRS-Sigma used the same cabinet as the later IRS-Epsilon. It's driver compliment included a High energy Emit tweeter, High energy Emim midrange with a transmission line, 6 1/2" IMG mid-bass coupler, 12" IMG woofer and a rear-firing High Energy Emit as depicted in this photo giving the Sigma's a dipole effect.
Like most classic Infinity's these speakers like plenty of power! (think a minimum 200 watts@8ohms, or a lower wattage, but high current amp with robust power supplies). One other caveat, unfortunately the demand for classic Infinitys has given rise to some scammers who sell 'frankenspeakers' and tell outright lies in their ads. If you see ads promising "mint condition, never used, last speakers ever made by Infinity" or if the seller only posts photos of the speakers in their boxes claiming they are "NOS/never used", avoid unless their name is Paul McGowan, Arnie Nudell or Bill LeGall. But don't let that put you off what are absolute gems of speakers.
Like most classic Infinity's these speakers like plenty of power! (think a minimum 200 watts@8ohms, or a lower wattage, but high current amp with robust power supplies). One other caveat, unfortunately the demand for classic Infinitys has given rise to some scammers who sell 'frankenspeakers' and tell outright lies in their ads. If you see ads promising "mint condition, never used, last speakers ever made by Infinity" or if the seller only posts photos of the speakers in their boxes claiming they are "NOS/never used", avoid unless their name is Paul McGowan, Arnie Nudell or Bill LeGall. But don't let that put you off what are absolute gems of speakers.