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USM Subwoofer Kit

The USM Subwoofer Kit is designed to extend the performance of the USM speaker collection with deep, controlled low-frequency response.

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Color Golden Yellow

Seamlessly integrated within the USM modular system, the subwoofer adds weight, depth, and balance while maintaining a clean architectural aesthetic. Designed to operate independently or alongside the full speaker collection, it delivers powerful bass performance with discreet, furniture-grade integration.

The USM Subwoofer Kit Includes:

  • 1 x Powered Subwoofer Insert
  • 1 x front panel w/ grill
  • 1 x rear panel w/ cable cutout
  • 1 x 12’ RCA Cable

A dedicated bass module engineered to complement the USM speaker collection. The USM Subwoofer Kit delivers powerful low-end extension and controlled response through a refined modular enclosure designed for seamless integration into contemporary listening spaces.

Features

  • Amplification: SP1-300 Subwoofer Amplifier
    Class-D plate amplifier with integrated DSP
  • Power Output: 300W @ 4Ω / 150W @ 8Ω
  • Driver: SB Acoustics SB29SWNRX-S75 10" Subwoofer
    10" (254 mm) Norex paper cone
  • Impedance: 6Ω nominal
  • Sensitivity: ~84 dB (1W / 1m)
  • Excursion: ±11 mm linear xmax
  • Power Handling: 200W nominal / 400W program
  • Frequency Response: ~20 Hz – 500 Hz (system dependent)
  • Voice Coil: 3" (75 mm) copper, 4-layer for high power handling
  • Vented pole piece and cast aluminum chassis for reduced compression and distortion
  • DSP Controls: Adjustable gain, crossover (up to ~500 Hz), delay, and LF boost (±12 dB @ 25 Hz)
  • Inputs: Balanced (XLR) and unbalanced (RCA)
  • Design: High-efficiency, low-distortion system optimized for deep bass extension and control
  • Character: Deep, controlled low-frequency response with high output capability and clean transient performance
  • Powder-coated steel panels
  • GREENGUARD and Cradle to Cradle Certified®
  • Available in 14 iconic colors

Details

Dimensions

13" w x 8" d x 29" h

Production Time

8 weeks

Product Weight

45 lbs

Shipping

White Glove

Easy to Install
Our Speaker Kit installs quickly within the USM system using a simple friction fit.
Connectivity
Precision-machined terminals ensure a secure connection and clean signal transfer.
Endless Possibilities
Reconfigure, Retrofit, or Design from scratch your USM Haller System with the USM Subwoofer Kit
Powered Subwoofer Amplifier
High-output monoblock amplifier engineered for deep, controlled bass with reliable long-term performance.

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