A friend dabbles in electronics and enjoys rebuilding older speakers. I finally got a chance to hear his Dahlquist DQ-10's tonight. I just found another speaker to add to my short list. He spent about 3 months rebuilding them. All new cross overs, refoamed woofer, rebuilt all the drivers and mirror imaged them. I must say I'm not easily impressed but those things sounded spectacular.
I really coudn't get enough of the openess of their sound. So airy and smooth, errily smooth and what a soundstage and the bass was so solid an tight. If I can find a pair locally on the cheap side he said he'd help me rebuild them. This is one of the few speakers that I knew I might want after only listening to a few songs. I heard DQ-10's back in high school but really wasn't at the level of audio sophistication I am now.
He got all the upgrade kits, wiring kits and drivers from Ragnar who bought out Dahlquist and still maufactures stock parts. He spent a lot of money restoring them the right way and they sound fantastic. It's weird to see this square sitting in front of you and having it project the sound it does. Goes against all convention of what a speaker should look like.