Optimal Audio Sub 15


High-power sub-bass loudspeaker

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SKU Sub 15


  • Compact size
  • Powerful sub-bass support down to 40Hz (-10dB)
  • High power handling

Sub 15 is a compact, high-performance, passive, 15” subwoofer designed for applications that call for increased impact and low frequency performance across the Optimal Audio loudspeaker range. 

The 15” (380mm) driver is loaded into a plywood bass-reflex cabinet that maximises performance, with a peak SPL of 135dB, while taking up minimal space. Sub 15 can be used on the ground or flown using integral M8 inserts.

An impact-resistant perforated steel grille protects the driver, and rubber feet on the base resist movement. The Sub 15 enclosure is constructed from plywood and finished in black textured paint.

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Speaker Size15"

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