The JS-SP50 is exactly what you need for your subwoofer/satellite speaker PA system. It’s adjustable in height from 31.5" to 52.5" and mounts between a subwoofer cabinet with a top mounting hole and a speaker with a bottom mounting hole (1.375" for both). The JS-SP50 features both a friction locking knob and a security pin system and is made from durable steel.
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