These are full range speakers and are quite dynamic with amazing bass combined with precise imaging and a huge soundstage. They are 102 decibel efficient.
The horns are as new. The cabinets are over an inch thick; Each speaker weighs over 120 lbs. Thus, shipping would be difficult.
I have powered these huge speakers with Quicksilver Mini Monos Mono blocks, @ 25 wpc.
Because of their size, I will not ship, but I will deliver within 300 miles of Midland, Texas or can meet buyer half way for longer distances. Buyer responsible for paypal fees. Horns: Altec 511B's, 500hz type. New powder coating. Crossovers: Altec N501-8B, very rare, made only one year and for only one pair of loudspeakers; VOTT A-7 500's.
Woofers:15" Dayton Audio PA380-8 Pro Bass Horn drivers, spec'd very closely to the original Altec 416-8C, which were used exclusively in the Altec A-7 VOTT's.
Wiring: 12-gauge flat braided OFC.
Cabinet: Onken 360L, designed in Japan but perfected by the French engineer Jean Hiragas. The Onken 360L is a vented design, but is similar to a folded horn in efficiency. The cabinet is renown for its low frequency speed and definition. The cabinet was constructed using 1-inch China Birch plywood, and has been screwed, glued, internally braced, and finished in walnut veneer with 5-coats of hand rubbed satin polyurethane.