Power Speaker Optimizer from dbx. The DriveRack PX is no longer available from dbx. This unit is used and comes with power cord, M2 measurement mic and mic bag and a used XLR cable for mic. The unit helps to "optimize" PA sound for the room and stop feedback. The unit was rack mounted and used with a JBL system.
The price on this unit ($135.00) includes UPS ground shipping in the 48 contiguous USA. Any shipping upgrades are paid for by purchaser. No international shipping available.

Year Condition Case
Call Very Good None


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Purchaser is responsible for all handling, shipping, insurance and related costs. Shipments must be insured, with tracking number and claims are the responsibility of the purchaser. International shipping is not available. Please contact Mike to discuss shipping options at

No Returns. Items sold "AS IS". All sales final.