CSIR SUB In-Room Subwoofer

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CustomSound™ CSIR SUB In-Room Subwoofer

This In-Room Subwoofer offers several elegant and highly versatile solutions. Measuring a mere 15 3⁄4” x 15 3⁄4” x 4 3⁄4”, the CSIR SUB can disappear into the décor of any room, but its stylish design is a feature in and of itself.

  • Ultra-Slim 10” Passive In-Room Subwoofer
  • Three Placement Options:
    -On-Wall with supplied mounting bracket
    -On-Floor with supplied base
    -Laid on its back for under or behind furniture
  • Ideal match with CS500W subwoofer amplifier


CustomSound™ CSIR SUB can be placed in 3 distinct ways. It can be mounted on a narrow, low profile plinth and placed upright. It can also be set on its back allowing it to be tucked out of the way, behind or under furniture. It comes with a mounting bracket, enabling the subwoofer to be wall mounted to maximize floor space.

The 10“, high performance shallow driver offers deep and resonant bass well beyond its modest size.


  • Ultra-Slim 10” Passive In-Room Subwoofer
  • Three Placement Options:
    – On-Wall with supplied mounting bracket
    – On-Floor with supplied base
    – Laid on its back for under or behind furniture
  • High excursion, shallow driver with Glass fiber / PMI
  • Foam sandwich cone, dual rubber surround
  • Renowned PSB sonic signature, well suited for either music or home theater
  • Design and final voicing engineered by Paul Barton
  • ISO Acoustic feet for improved isolation and sound clarity
  • Ideal match with CS500W subwoofer amplifier
  • Gross Dimensions (w/o base):15¾ x 15¾ x 4¾” (W x H x D)
  • Gross Dimensions (w/ base):15¾ x 17 x 5¼” (W x H x D)

on wall in room subwooder



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Frequency Response

Frequency Response25-150Hz


Anechoic Chamber88dB
Listening Room90dB


Nominal8 Ohms

Acoustic Design

Woofer (Nominal)10” (254mm)

Glass fiber / PMI foam sandwich cone

Die Cast Basket

Rubber Surround

Balanced Drive motor structure

Recommended Power

Recommended Power40-200 Watts


Grille FaceAcoustic Transparent Cloth
Grille FrameWood

Size (W x H x D)

Net Width15 3/4 "(400mm)
Net Hight17" (432mm)
Net Depth5 1⁄4” (133mm)

Shipping Information

Net Width21 1/4” (540mm)
Net Hight21 5/8” (550mm)
Net Depth11” (280mm)
Net Weight24 4/5 lbs
Shipping Weight32 1/2 lbs


Available FinishesSatin Black, Satin White


Wall BracketIncluded
Floor StandIncluded

Data Sheet (PDF)

Quick Start Guide

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