JBL ASB-6128-WH Dual 18" Subwoofer - White deluxe-bedford The WA-87 R2 uses a

The WA-87 R2 uses a custom-wound Cinemag USA output transformer like the original WA-87 did

even at extremely high sound pressure levels

-Solid Kick Bass Pad

600-Denier Nylon Over 1/2" Plywood Construction

JBL ASB-6128-WH Dual 18" Subwoofer - White deluxe-bedford The WA-87 R2 uses aJBL's ASB6128 is a front loaded, high power subwoofer system with a vented configuration for extended bandwidth and high output. It's comprised of two 460 mm (18") SVG Super Vented Gap low frequency drivers. Applications Performing arts facilities Theatrical sound design Auditoriums Houses of worship Live clubs Dance clubs Sport facilities Themed entertainment venues Features Large vent area for high output Parallel Discrete switchable Specifications