Subwoofers spoil one of the best speakers ever made. None of them are fast enough. Have owned and sold ESL 63's for many years. Put your money in upgrading the front end of your system (better turntable/CD player)
quad esl 63 needs a sub woofer
I have an quad esl 63 and I am planning to add a sub woofer. I need help about choosing one. I heard about gradient sw 63s. have anyone know anything about that. I am using tube amplifiers since I will need an extra amplifier to drive the sub, do you think eloctrocompaniet ampli (Class A)they match with the tube amplifiers. Thank you. Note:they are selling gradient sw 63pair( excellent cond.) for $1900. Do you think I should go for them?