The Precision SW1 (which requires
the WM1 Wall Mount) is a high-quality pan and tilt swivel designed for
use with the SM-1 System. This patented swivel features locking spring
pins and tension knobs for optimal control. The pan holes are set in
15-degree increments and the tilt holes are set in 30-degree increments
for precise positioning.
The SM-SW1 is 130mm- speaker mounting holes to to wall plate.