Infinity Beta speakers

I agree with Hrcapers on the ARC amps on the panels. I recently found that replacing the non polarized electrolitic capacitors in the crossover found base of the planars with 250 volt polyprylene capacitors of the same value to make a huge improvement in clarity as well as control of the lower frequency of the planars, making them match the woofers better and giving less bass boom. Highly recomended!

I've had Betas for 7 years. Set up according to the manual with no mods. They are very amplifier sensitive. Suggest Audio Research tube amps for the mid/twt columns and - believe it or not - QSC PLX 3002 for the bass. The QSC can be purchased for less than $1000 new at musical instrument dealers. It beat out Krell, Bryston, etc. by taking bloom out of the bass and adding "punch". 900 W/ch @ 4 ohms.