JBL PRX618SXLF Subwoofer (1000 Watts, 1x18 in.) (New)
JBL provides the PRX618SXLF to provide extended low frequency operation to your PA System.
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As low as $419.00 out of 3 sellers
User Review: Once I connected it this way, and turned up the input level until the red limit LED occasionally flickered on, this monster thumped hard and had a nice pure bass tone to it.