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|Create Date||April 17, 2015|
Stage Accompany - SA4515-4518 TechDoc, cabinet.
The W-bin is a horn-loaded bass cabinet, with vents located at the front; the 4518 featured a single JBL 18" speaker and the 4515 featured double JBL 15" speakers. They were both available in standard version or SA-blue or black "S" version (wheels, scratch-proof finish and aluminum corner protection).
The 4515 and 4518 were produced between 1977 and 1986.
Because of the simple, but rigid cabinet construction and the efficiency, most of them are still on the road and hold good value.