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Home / Product Category / SPEAKERS / Ceiling Speakers / 8" In-Ceiling Speakers / ACE840 8" Trimless Thin Bezel High Definition Ceiling Speaker Pair

ACE840 8" Trimless Thin Bezel High Definition Ceiling Speaker Pair

Product code: OSD-ACE840

In Stock
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OSD Price: $78.84
Compare at: $119.95 You Save: $41.11 (34%)
Sold in pairs 1 = 1 pair
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Features & Specifications

If you subscribe to the belief that speakers should hear but not seen, then our ACE (Architectural Ceiling Element) series in-ceiling speakers are for you! Combining elegance, style, and superb audio performance, the ACE840 in-ceiling speaker has a discreet, modern design that interiors decorators love; however, these top quality in-ceiling speakers come through strong on audio performance. Power handling is rated at 100W, so the ACE840 will fill even large spaces with beautiful sound, while the 8” Fiber Glass Woofer and 1" Pivoting Titanium Dome do their part to enhance sound as well. Note the nearly invisible micro-flange grille (0.15") that gives the ACE speakers that sleek, clean appearance. These speakers are excellent for home theater and media rooms and even allow you to adjust the bass and treble to suit your personal tastes.The Trimless Thin Bezel Series of the ceiling and inwall speakers are flush mounted speakers that blend into any room interior and offer outstanding audio performance.

Step-up Features!

Silk dome tweeter for superb high frequencies

Mica-filled polypropylene cone and butyl rubber surround

Super discreet! Match your recessed lighting.

Cable Requirements
OSD Audio offers CL3/FT4 cable that is UL (fire) rated for all residential and most commercial in-wall and in-ceiling applications. This cable includes a heavy-duty outer jacket approved for in-wall/in-ceiling installation. The high-quality plastic jacket is also very flexible so it's easy to run the wires inside the wall.

For a retrofit installation, no construction bracket is needed.

Please note: Use cut-out diameter according to the bullet point on the website.


Other Product Info

ACE (Architectural Ceiling Element) series ceiling speaker combine elegant, modern style with outstanding audio performance. The new micro flange grilles have thin (0.15") of trim, making ACE speakers clean and sleek appearance that seamlessly integrates any designed space. Matching your can light size and you won't notice they are speakers there.


  View Owner's Manual          


5 Questions & 5 Answers
Dean Draxton
from Park City, UT asked:
April 24, 2018
What ?is the cut-out diameter
1 Answer
Hi Dean: Cut-Out Diameter: 9 3/4" TL/4932
Tim Leahy
on April 24, 2018

from New Jersey asked:
August 3, 2016
I want to drive these speakers from a I2000M intercom. The out put of a room station is around 2 watts. There will be 2 speakers in series. Is this reasonable?
1 Answer
Hi Bill: I am assuming you will be using a pair of these speakers and wire them in Series as recommended by Intrasonic Technology. They should work fine. The output signal is summed mono or full range Mono. Good Luck TL/4009
Customer Service - Q&A
on August 9, 2016

from asked:
January 19, 2014
Connected a pair of these speakers to my receiver using a VMS300 volume controller. to hear a faint sound from the speakers the volume control needs to placed on the highest volume setting. When I turn up the receiver volume the receiver then shuts down after 10 seconds. What could be causing this issue
1 Answer
Hi Nik, Check to see what the impedance switch on the back of the volume control is set to. If you're only running one pair off your receiver, it should be set to 1/2x. Technically you should be running a non-impedance matching volume control if for max power, but the VMS300 should still work just fine. How much power (in watts) is your receiver putting out into the volume control? -BM 2447
Customer Service - Q&A
on February 3, 2014

from Houston, TX asked:
January 19, 2014
I installed and connected this speaker to my receiver using a VMS300 volume control. First I need to place the volume control in the max position to get any sound and the sounds is very faint. Then when I turn the volume up on the my receiver the receiver shuts down after about 10 seconds. I have checked all the wiring all looks to be good and snug. What could be the issue causing this.
1 Answer
Hi Nik, How many of the ACE840 speakers are you actually running off the one VMS300 volume control? Since they are sold in pairs, I'm assuming you are running 2 speakers off the volume control. What type of amp/receiver are you running to the volume control? -BM 2446
Customer Service - Q&A
on March 10, 2014

from Canada asked:
January 20, 2012
How would these speakers work with your breathe audio system? What other 8" trim less speaker would you recommend ?
1 Answer
Hi Steveu: These 8 inch speakers work very well with the Breathe Audio system. We have two other options for trimless 8", one being the more affordable ACE800 or the more expensive ACE850MK (our best). In the more convential frame speaker check out the ACE840TT,Dual Voice Coil, Dual Tweeter and dual application speaker. It features a 8/16 ohm switch which allows you to use it as a single summed mono stereo speaker in the 16 ohm position (ideal for bathrooms or hallways where you only have single choice for locations). The second option is to install a pair of these speakers where you connect one of the voice coils on each speaker and set the switch to 8 ohm. The dual tweeters in both applications give you broader distribution of the high frequencies. The bottom line the Breathe Audio features plenty of power to drive any of our eight inch speakers. An an eight inch speaker usually offers more bass than a 6.5 inch speaker in the same series. TL
Customer Service - Q&A
on January 22, 2012

Product Reviews

5 Reviews
80% (4)
20% (1)
0% (0)
0% (0)
0% (0)
60% Recommend this product (3 of 5 responses)
By Gary
San Diego
July 20, 2016
For the price, the sound is excellent. I was disappointed that there was no adjustments on the speaker as advertised in the on-line literature about the speaker.
By Jim
Carlsbad, CA
April 30, 2013
Great speaker for a great value
Everything about dealing with this company has been great. Ordering is easy and delivery is next day because I live in So Cal. Only complaint I have is that the speakers are not truly hidden. I was under the impression the speakers would be recessed all the way into the ceiling and the only thing visible would be the speaker cover. Unfortunatly the speaker sticks down about 1/8" and the outside ring is visible. This would be fine if it was installed on a wall but is very noticeable on the ceiling. If I would do it again I would purchase a standad speaker
ProsGreat sound at low cost
ConsDoes not disappear as advertised
Best UsesWall Mount
By Chris
Brockville, Ontario, Canada
April 17, 2013
Very Happy
Installed 2 of these in my Kitchen, Hooked up to a Cerwin Vega Amplifier which has an Apple Airport Express feeding it, Wirelessly streaming music from any apple device. Sound is awesome. When I crank the volume, you can feel it in the kitchen counter. Will be definately buying more speakers from OSD for my back deck in the spring.
ProsNice Sound, Easy install
By From
May 24, 2010
i installed these ...
i installed these speakers under the overhang of my roof (tite to sofit about 10' apart) and they sound great ...really good speaker for the money. good bass responce if not pushed to much..highs are clear sounding.. my computer runs thu a kenwood receiver.and i use 10 band eq (computer software) i play lead guitar and bass and have made demo recordings w/a couple of bands so i have enough experience to hear the very pleased w/this prod for the price
By Joe
Chicago, IL
February 4, 2010
Love the look and the ...
Love the look and the sound of this speaker, after installation the speaker disappearing in the ceiling and only realize they are there because of the great music sound. Delivery is fast and live technical support person provides excellent advices and services.