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Speaker Type
In-Wall Speakers
Maximum Power Handling
120 Watts
Woofer Size
8" Woofer
Ease of Installation
Intermediate (Installs < 60 minutes)
Angstrom Loudspeakers
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An Elegant, In-Wall Subwoofer That Won’t Take Up Floorspace
Angstrom Loudspeakers 8-Inch In-Wall Subwoofer
Angstrom Loudspeakers 8-Inch In-Wall Subwoofer
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Subwoofer in Mounting Frame Rear View What's Included
Unique Mounting Frame Rigidly Clamps the Wallboard Wiring Diagram Manufacturer's Spec Sheet
Angstrom Loudspeakers 8-Inch In-Wall Subwoofer
Item# 82540
Price: $189.99
Free shipping on orders over $175 - See Details


  • Subwoofer mounts in the wall for clean look with full sound
  • In-wall subwoofer includes rigid steel frame for ease in mounting
  • 8-inch speaker provides 120-watt power
  • No dedicated Sub-Out required, includes crossover board

Essential Info

You don't need to install a bulky subwoofer to fill out the bass in your stereo system. The 8-Inch In-Wall Subwoofer is designed to be flush-mounted in a wall or panel for full, 120-watt sound in an unobtrusive housing. A retro-fit mounting frame for mounting into an existing wall kit is included. This subwoofer connects to your home theater system using 16-gauge or larger speaker wire, sold separately.


What's Included

  • Subwoofer
  • Grille
  • Grille removal tool
  • Installation materials
  • Painting mask
  • Mounting frame
  • Drywall locator kit
  • Steel retro ring
  • Wiring diagram
  • Instructions
  • More Info

    This in-wall subwoofer is comprised of a low-frequency driver with dual 8-ohm voicecoils and is designed so as to perform in an infinite baffle design requiring no rear chamber. The low-frequency driver is manufactured with a weather-resistant polypropylene cone and butyl surround. The crossover is a second order network (12 dB/oct) and delivers two specific ranges of frequencies to the woofer and connected speakers.

    The 8-Inch In-Wall Subwoofer mounts in an opening accessible from the front without access to the rear. Install the rigid steel frame and mounting ring assembly by passing the black mounting ring through the cutout. Verify that the speaker frame fits into the cutout, and once the frame is in place, pull the mounting ring against the rear side of the wallboard. You'll be left with a more secure, stable installation. The included drywall locator kit provides a pattern for drywall cutting as well as a tie-off hole for speaker wire that provides added ease in installation.

    Included in the package is a perforated metal grille to protect the driver; the grille is removable for servicing. All surfaces of the speaker are paintable to match your décor, as well.



    Manufacturer:Angstrom Loudspeakers
    Dimensions:10 1/2" W x 15" H x 3 13/16" D
    Cutout Size:13" H x 9" W
    Woofer:8" long throw polypropylene driver
    Frequency Response:30 Hz to 500 Hz
    Crossover:Second order with a crossover frequency of 120 Hz
    Power Handling:70 watts nominal, 120 watts maximum per channel
    System Impedance:8 ohms x 2
    Frame:ABS plastic, heat resistant to 120°
    Speaker Wire:16 gauge or larger


    Subwoofer in Mounting Frame  Rear View  What's Included  Unique Mounting Frame Rigidly Clamps the Wallboard 
    Subwoofer in Mounting Frame  Rear View  What's Included  Unique Mounting Frame Rigidly Clamps the Wallboard 
    Wiring Diagram  Manufacturer's Spec Sheet     
    Wiring Diagram  Manufacturer's Spec Sheet     


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    Share your thoughts with other customers
    FXR -- chula vista, California   11/1/2012
    I decided on this subwoofer after looking at many others. The specifications are great and for the price, a great value! Hooked this up to my LF and RF speakers via Onkyo receiver and it just sounds so realistic. My music collection of all genres sound so much better with this subwoofer as part of my system than without it. The thumping of the bass is noticeable and crisp. I have nothing but praise for this product. Cannot wait to try on blue ray movies such as Le Mans or Grand Prix. I wanted my home theater to have built in speakers and everything is flush and unobtrusive. Installation was a breeze. Only complaint would be that instruction pamphlet should have been included or at least a web link that directs you to the numerous ways that you can wire this dual voice coil passive subwoofer up. I had to do many You Tube and Google searches until I found out the best way to set it up for my system.



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