I just rebuilt pair of Infinity Infinitesimals. The guy paid 400.00 for a nice looking pair. He bought new ribbon for the tweeters. I installed the ribbons, checked the DVC Watsons, surrounds and turned them 180 degrees. I replaced the tweeter caps and inductors and cleaned up all the LPad switched. I added a great pair of red copper 5 way binding post and rewired with OCC/silver.
They are 12" tall. 95% efficient at least. What a great speaker and the rework paid big time.. I think the binding post and wiring were the biggest thing..
He uses First Watt gear.
I tested them with a MX110z and a MC225. 28 wpc
They filled my whole work shop 30 x 40 and I used a single BB sub. The sub is in a 8cf box. It uses a 12" firing up, a 15" firing down and an 18" HE passive radiator facing forward. 250 watts. :-) The drivers are 92 - 94%. 100db was pretty easy
The sub is behind me 5 feet away the speakers are in front 10 feet away.
About 800.00 total for the little Titans. He had used stands that were to short. He had some pavers he like. He glued three together and painted the pavers with the same color as the stands. Looked great. 30.00 for the construction goop and primer and spray paint.
Great and they ARE from 1978 - 1980 or so.. Way ahead of their time and make quite a statement, Then and NOW..
I got a couple pairs stashed somewhere.. :-)
Regards