SS7761B All-Aluminum Speaker Stand Our most versatile speaker stand is also extremely affordable! Lighter than the SS7730, the reversible-shaft design on this model may be used with either 1-3/8? or 1-1/2? speaker cabinet inserts. Applications: Mid-size speakers Upper Shaft Tubing: 1 3/8? or 1 1/2? Weight Capacity: 120 lbs. Height Adjustment: 44?-80?