Definitive Technology IW Sub Reference Fully Enclosed 13″ In-Wall Subwoofer Reference – White

Brand: Definitive Technology
Model Number: IW Sub Reference
UPC: 093207010538
Definitive Technology
Model Number: IW Sub Reference
UPC: 093207010538

Definitive Technology Fully Enclosed 13″ In-Wall Sub Reference – White

  • Passive in-wall subwoofer for an in-wall music or home theater system
  • Designed for use with Definitive Technology SubAmp 600 Subwoofer Amplifier (sold separately, required for operation)
  • 13″ active, long-throw woofer
  • 13″ passive bass radiator





Payments as low as



Availability: In stock

Product Description

Features & Specifications



Definitive Technology Fully Enclosed 13″ In-Wall Sub Reference – White

Invisible Powerhouse Bass

The IW Sub Reference is a deep-bass powerhouse that disappears in your room, with a non-resonant sealed enclosure and paintable bezel and grille.

More Bass for Your Space

Enjoy deep, high-impact bass without wasting floor space

Deep, Deep Lows

13” active subwoofer pressure-coupled to a 13” ultra low bass radiator

Easy to Install

Fits in standard new or existing wall construction

Broad-Bass Technology: 13” In-Wall Driver

Includes a special shallow-depth, long-excursion active 13″ driver pressure-coupled to its Ultra-Low Bass Radiator to produce deep, formidable bass.

Ultra-Low Bass Radiator for expansive depth

The active 13” woofer and 13″ Ultra-Low Bass radiator boast a combined bass radiating surface area of over 265 square inches—more than an 18” woofer but with greater speed and control for tighter, deeper, more powerful bass.

The SubAmp 600 for real low-end power

The IW Sub Reference is externally powered, so there’s no need for installers to run electrical to the in-wall subwoofers. The outboard SubAmp 600 (required, not included) can power up to two IW Sub Reference subwoofers, even in different rooms.
With this unbeatable combination, installers enjoy the same ease of installation with in-wall subs as they do with in-wall speakers.

Installation Flexibility: Customize to your home

Whether new or existing construction, walls or ceilings, residential or commercial, the IW Sub Reference presents a simple, secure installation. From metal pivoting lock arms to paintable grilles and frames to fully sealed enclosures, Definitive Technology engineers designed speakers that put installation simplicity on equal footing with sound quality.

Fully Enclosed for powerful sound where you want it

To play bass in the room it’s intended for, rather than spilling into adjacent rooms via walls and ceilings, The IW Sub Reference is fully enclosed and sealed with dense, acoustically inert, anti-resonant, anti-vibration Medite® wood. You’ll hear tight, powerful bass with no distortion or buzzing.

Paintable Grilles for the final custom touch

The IW Sub Reference’s grille is paintable, with easy step-by-step instructions.

Brand Definitive Technology   Model Definitive Technology UCXA
Product: Definitive Technology IW Sub Reference Fully Enclosed 13" In-Wall Subwoofer Reference - White



4 Ω

Enclosure Type

Passive Radiator


Quantity in Package: Single
Aimable Tweeter: No
Moisture-resistant: No
Bi-Amp Inputs: No
Built-in Back-box: No


Woofer Size: 13
Speaker Shape: Rectangle
Cutout Width: 14.38
Cutout Height: 25.13
Frequency Response: 14-200Hz

Estimated Shipping

When you add an item to your cart the Estimated Shipping* cost will be shown.  This estimated shipping* cost is accurate to most major city locations across Canada.  If the shipping cost is higher than the estimated shipping* then GibbysESM will contact you for approval before we process your order.

To learn more click Shipping Terms & Conditions

Definitive Technology Canada 1 year Limited Manufacturers Warranty


There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.