JBL Synthesis

SSW-1 Dual 15" Subwoofer

The SSW-1 is the flagship JBL Synthesis subwoofer designed to complement any of the Synthesis Custom Loudspeakers (SCL-series). Featuring new dual 15-inch (380mm) high-excursion cast-frame woofers capable of handling 2500 WRMS each in a heavily-braced, ported enclosure, the SSW-1 delivers extreme performance for custom installations in large theaters.
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Part of the Synthesis Subwoofer series, the SSW-1 is the flagship passive subwoofer acoustically designed to complement any of the Synthesis Custom Loudspeakers (SCL series) as part of a complete JBL Synthesis solution. The SSW-1 features dual 15-inch (380mm) cast-frame, advanced Aluminum Matrix cone woofers, each with a massive 6-inch (152mm) voice coil for total system power handling of 5000W RMS. Cabinet tuning is via dual front-firing tuned ports featuring JBL’s patented Slipstream™ contouring for incredibly low-noise performance. The robust enclosure is constructed from 1-inch (25mm) MDF with extensive internal bracing and includes a steel-frame, magnetically-attached cloth grille. The configuration of the enclosure allows it to be positioned vertically or laid on its side horizontally for tremendous placement flexibility in applications including built-in, behind the screen, or in-room. The SSW-1 delivers powerful, dynamic, and accurate bass response in large rooms.


  • Dual 15” (380mm) cast-frame advanced Aluminum Matrix cone woofers, each with a 6-inch (150mm) voice coil capable of over 3” (80mm) of cone travel
  • Heavily braced black vinyl-clad cabinet built from 1-inch thick MDF with dual front-firing Slipstream ports, tuned to 18 Hz
  • Cloth-wrapped, edge to edge metal frame grille with magnetic attachment
  • Flexible horizontal or vertical placement
  • Total system power handling of 5000 WRMS

General Specifications

  • Type - Dual 15-inch (380mm) in-room passive subwoofer
  • Recommended Amplifier Power - 2500 WRMS per woofer (5,000 WRMS total)
  • Recommended Amplifier - (1) JBL Cinema MA4-D (bridged)
  • Impedance - 8 Ohm per woofer
  • Loudspeaker Sensitivity - 90 dB/1W/1m
  • Frequency Response - 15 Hz – 400 Hz (-6 dB)
  • Low Frequency Extension - 13.5 Hz (-10 dB), 15 Hz (-6 dB), 16.7 Hz (-3 dB)
  • Enclosure Type - Bass reflex with dual front slipstream ports, tuned to 18 Hz
  • Grille Dimensions - 53.5" H x 24" W x 0.738" D (1358.9mm x 609.6mm x 18.75mm)
  • Product Dimensions - 53.5" H x 24" W x 22" D (1358.9mm x 609.6mm x 558.8mm)
  • Input Type - Dual sets of gold-plated binding posts
  • Product Weight - 350.5 lb. (159 kg.)
  • Shipping Weight - 541.5 lb. (245.5 kg.) in crate

More Information
Weight350.50 lbs
Color OptionsBlack
FeaturesPorted Box Design, Wired
Warranty5 Years
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