The 108/HSB is a single 8” high output, low frequency subwoofer sound reinforcement system. The speaker utilizes an injection molded enclosure designed for use in direct weather applications. This product is intended for venues where additional low frequency acoustic output is required in conjunction with the 108/HTC, 108/HTH, 106/HTH and 104/HTH One Systems enclosures.

The 108/HSB may be used in outdoor installations, as well as indoor applications where extended low frequency output or additional bass response is required. The unique design of the 8-inch woofer provides an excellent combination of high sound pressure levels and low distortion.

The 108/HSB is designed for bi-amp applications only. The 108/HSB does not include an internal passive crossover.

The enclosure may be configured for either low impedance (8 ohm) operation or 70V/100v high impedance operation. Wiring instructions are found on the last page of this data sheet.

When operated in high impedance mode a 4th order Butterworth high pass filter with a corner frequency of 43Hz is required. A 4th order Butterworth high pass filter is also recommended for low impedance (8 ohm) operation to ensure optimal performance.

Do not use this product in oceanfront or marine applications!


  • Weather Resistant Eight-Inch Low Frequency Subwoofer
  • Injection Molded High IP45 Enclosure
  • Optimized for use with the 108/HTC, 108/HTH, 106/HTH and 104/HTH
  • 1 x 8 inch ONE SYSTEMS long excursion eight-inch woofer
  • Multiple M8 Flying Points
  • Low impedance (8 ohm) and 70V/100V High impedance operation
  • Barrier Strip Inputs with Gland Nut Weather Cover