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OSD ACE870 In-ceiling "LCR" home theater speaker with angled drivers

Item # 452ACE870

OSD's ACE870 gives you a handy in-ceiling option for your home theater's front channels, at an affordable price.

OSD's ACE870 gives you a handy in-ceiling option for your home theater's front channels, at an affordable price.

Item # 452ACE870

In stock
$154.99 each

About the OSD ACE870

Archer A.

Hideaway home theater sound from OSD

If you're creating a custom-installed home theater, give OSD's ACE870 in-wall speaker a look. Its "LCR" design features angled drivers to aim the sound toward your listening position. Install three across the front of your home theater for the left, center, and right channels, as close as possible to the front wall for the best results. This speaker uses an 8" carbon fiber woofer to dish out bass and a 1" pivoting titanium tweeter to handle the high notes.

Hideaway home theater sound from OSD

If you're creating a custom-installed home theater, give OSD's ACE870 in-wall speaker a look. Its "LCR" design features angled drivers to aim the sound toward your listening position. Install three across the front of your home theater for the left, center, and right channels, as close as possible to the front wall for the best results. This speaker uses an 8" carbon fiber woofer to dish out bass and a 1" pivoting titanium tweeter to handle the high notes.

Adjust the tweeter level to your liking

An onboard contour switch changes the output level of the tweeter so you can customize the sound. If your room is full of reflective surfaces, you'll want to set the switch to "-3dB" to keep the tweeter from being too overbearing. If your room has lots of carpet, cloth, or other sound absorbing materials, try the "+3dB" option to give the tweeter some extra treble emphasis and help it come through clearly in your room.

Got wire?

Most speakers don't include any. Learn more about in-wall wiring.
Shop our selection of in-wall speaker wire.

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Product highlights:

  • 2-way angled in-ceiling speaker:
    • 1" pivoting titanium dome tweeter
    • 8" carbon fiber composite woofer cone
  • "LCR" design: drivers are angled 15° to direct sound toward your listening area
  • tweeter contour switch (-3dB, flat, +3dB) adjusts the tweeter level to match your room's acoustics
  • trimless baffle for seamless post-installation look
  • frequency response: 35-20,000 Hz
  • included grille is spray paintable to match your ceiling
  • handles up to 175 watts
  • sensitivity: 88 dB
  • impedance: 8 ohms
  • cutout diameter: 9-7/8"
  • frame diameter: 11-1/2"
  • mounting depth: 5-3/8"
  • warranty: 10 years
  • MFR # ACE870

What's in the box:

  • In-ceiling speaker
  • Grille
  • Cutout Template
  • Install Guide

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More details on the OSD ACE870

Stacey B.

Features & specs

Features
Quantity in Package Single
Tweeter Hard dome
Aimable Tweeter Yes
Woofer Composition Carbon Fiber
Woofer Surround Butyl Rubber
Connector Type Spring post
Bi-Amp Inputs No
Built-in Back-box No
Moisture Resistance
Indoor (Moisture-resistant) No
Outdoor (Partial Exposure) No
Outdoor (Full Exposure) No
Specs
Tweeter Size 1
Midrange Size N/A
Speaker Shape Round
Woofer Size 8
Cutout Width 9.694
Cutout Height 9.694
Mounting Depth 5.435
Power Range (Watts) up to 175
Sensitivity 88 dB
Impedance (Ohms) 8
Frequency Response 35-20kHz
Parts Warranty 10 Years
Labor Warranty 10 Years

Product Research

Features

2-Way Driver Configuration: The Architectural Ceiling Element (ACE) Series ACE870 in-ceiling speaker from OSD Audio employs a 2-way driver design featuring a 1" titanium hard-dome tweeter and a 8" fiber cone woofer with butyl rubber surround for crisp, detailed mid and high frequencies, as well as impressive deep bass.

Angled Design: The ACE870 in-ceiling loudspeaker incorporates 15-degree angled baffle for the mid/bass woofer, plus a pivoting mechanism for the high frequency tweeter for application & placement flexibility. Due to its angled design, OSD Audio ACE870 can be utilized as a Front, Center, or Rear channel speaker in a home theater setup. The angled design allows the ideal placement in the ceiling closer to the wall just above the monitor. This creates a more realistic sound image when compared to normal in-ceiling speakers that are mounted closer to directly above the viewing area. Standard in-ceiling speakers are generally placed at least 3' from the wall to avoid reflective sound, while the angled ACE870 speaker can be placed within a 1' of the wall.

Tweeter Level: You can adjust the output level of the tweeter to -3dB, 0dB, or +3dB. The tweeter level control is located on the front baffle behind the detachable grille. Highly reflective "live" rooms benefit from a -3dB reduction, while fabric-heavy "dead" rooms will sound better with tweeter boosted +3dB.

Spring Post Terminals: The OSD Audio ACE870 in-ceiling speaker is outfitted with a set of spring post terminals that accept bare wire (up to 12AWG), pin-connectors, and banana plugs (single only).

  • For wire lengths of less than 50', use at least 16-gauge in-wall rated speaker wire (CL3/FT4).
  • For wire lengths between 50' and 100', use at least 14-gauge in-wall rated speaker wire CL3/FT4).
  • For wire lengths of greater than 100', use at least 12-gauge in-wall rated speaker wire (CL3/FT4).

Note: Your speaker wire must comply with all local building and safety codes for use in in-ceiling applications.

Mounting Options: The OSD Audio ACE870 features a "dog leg" (L-shaped) mounting system that is part of the frame to secure the speaker in the ceiling. The speaker requires a round cutout that measures 9.694" (diameter) x 5.435" (depth). Its outer frame measures 12.0" (diameter) x 0.22" (depth). The "dog leg" (L-shaped) mounting system accommodates a 0.25" to 1.25" thick ceiling. Make sure to leave at least 0.75" of open space (without obstruction) around the cutout above the ceiling, so the speaker's "dog leg" mount system will have room to engage fully.

Note: Be sure that there are no studs, lengths of conduit, pipes, heating ducts or air returns in the ceiling cavity that will interfere with the speaker.

Low-Profile Magnetic Grille: The low-profile magnetic grille is removable and can be painted to better match the color of your ceiling. The low-profile grille only protrudes 0.22" from the ceiling's surface.

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