I have a pair of 15" - 411s that I bought from Fleebay and I had them reconed by Bill from GPA recently. Anyway, over at the JBL/Altec Lansing Forum they tell me that these woofers had a flawed design (deep VC, heavy cone, etc.) and most believe they are not worth restoring into a system.

Although I have not used them yet, I did note they have a very LOW efficiency rating of 93DB at 1 watt at 3 feet.

I've owned a VOTT system for +30 years and always admired the super high efficency (96db) and wide dynamic range of Altecs but the 411s don't seem to meet this bill; right?

I remember the Santiagos when they first were issued in the 1970s and they did not sell well as I remember.

Any thoughts on these?

Thx.