Originally Posted by
Steve Schell
Andrey, I looked through my literature and cannot find any dimensions that would assist you in building these cabinets. The original blueprints may no longer exist. It is possible to make a drawing by measuring an existing cabinet; perhaps 16hz lover can do this for you. The RCA W bin should be quite close in dimensions to the Lansing, as both were derived from the Shearer.
I am curious as to your need for the plans. Are you planning to build these cabinets for home hi fi? As bass horns go the Shearer design is not particularly well suited, as the axial length is only 40" and the cutoff frequency is fairly high, probably 80Hz. or so.