Mobile Navigation
My Account


Call for Support
Home / Product Category / SPEAKERS / Ceiling Speakers / 5.25" In-Ceiling Speakers / ACE500 5.25" Trimless Thin Bezel Ceiling Speaker Pair

ACE500 5.25" Trimless Thin Bezel Ceiling Speaker Pair

Product code: OSD-ACE500

In Stock
Free Shipping
OSD Price: $49.99
Compare at: $59.95 You Save: $9.96 (17%)
Sold in Pairs
30-Day Money Back Guarantee

Features & Specifications

The ACE500 5.25-inch trimless thin bezel ceiling speaker from OSD Audio is ideal for background music in an office space, commercial environment or public building. It has a clean, contemporary appearance that seamlessly blends into any de´cor, and the size even matches nicely with recessed lights. These trimless recessed speakers have a 5.25-inch woofer and .75-inch tweeter, and can handle 75 watts of power. These ceiling speakers are made from durable ABS plastic material. Flush-mount speakers use the ceiling as its speaker enclosure, and the absence of trim on this model makes it completely unobtrusive within the architectural design of the room. If you're looking for a 5-inch in-ceiling speaker, the ACE500 may be the perfect choice.

Outdoor Speaker Depot is a leading manufacturer and supplier of innovative and high-end audio equipment and home entertainment systems. We're here to assist you in selecting the perfect products to fit your sound system needs.

Why Go Trimless?
It's really a matter of aesthetic preference. Our Architectural Ceiling Element (ACE) Trimless speakers do not include the the 3/4-inch trim you typically see around in-wall and ceiling speakers. This gives the speakers a much stealthier appearance. The micro flange grilles are attached by extremely powerful magnets that stay put for quick and easy installation. Adds less visual impact on your architectural audio installation.

How does this speaker mount in the ceiling?
Customers often ask us if they need special installation mounting brackets on their OSD ceiling speakers. The answer is no and here’s why. All our in-ceiling speakers feature a dog leg (L-shaped) mounting system that is part of the frame. Before you install the speakers, remove the grille and you’ll see several the mounting screws near the front frame. These screws need to be loosened to activate the dog leg clamps. Use a screwdriver to loosen (turn to the left) these screws and the clamp will come loose. When the speaker is in position in the ceiling, tighten (turn to the right) the screw and the speaker will be secured to the ceiling.

Cable Notes
You'll need to purchase in-wall cable before you start your install. Wiring requirements vary with local building codes, but we recommend using our 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.

Gauging the Length and Size of Wire
For runs up to 100 feet for background music, 16-gauge will do just fine. If the run is approaching or exceeding 100 feet, step up to a 14-gauge wire.

Testing the Sound Quality of In-ceiling Speakers
Many customers like to test the sound quality of their new OSD Audio in-ceiling speakers before they install them. Keep in mind, however, that these flush-mount speakers are designed to be used in the wall or ceiling. Uninstalled in-wall/in-ceiling speakers will sound weak and tinny because without the proper enclosure (in this case your house wall) the speaker can’t produce the sound pressure level it needs. If you want to try them out, we recommend mounting the in-ceiling speakers into a box of about 3 cubic ft. or larger; or simply mount them in the ceiling and then listen. This will give you an accurate measure of the sound quality.

For a retrofit installation, no construction bracket is needed.


Other Product Info

ACE (Architectural Ceiling Element) series ceiling speakers combine elegant, modern style with outstanding audio performance. The new micro flange grilles have a thin (0.15") trim, giving the ACE speakers a clean and sleek appearance that



  View Owner's Manual          


6 Questions & 6 Answers
from Portland, OR asked:
January 8, 2019
Can the grilles be painted on the ACE line of speakers?
1 Answer
Hi Ken: Yes, the grills are paintable for the ACE series as well as the ICE series. But make sure you remove the cloth on the inside of the speaker grill before you paint it. Afterward, you can determine if you want to reapply the inside acoustic cloth. You can use spray paint or a paint brush if you need to use exact color matched paint for your ceiling. Good luck TL/5361
Submitted by: Tim Leahy on January 10, 2019

from fl. asked:
July 7, 2015
Can these speakers be used outside in the patio ceiling
1 Answer
These are not outdoor rated. Check out the ICE600WRS.
Submitted by: Customer Service - Q&A on July 9, 2015

from IL asked:
January 7, 2015
When installing these speakers in the ceiling do they have to be clear of the attic insulation or OK to cover them over with it??
1 Answer
Hi James, Best to keep it clear as to avoid any falling onto the back end of the speaker.
Submitted by: Customer Service - Q&A on January 14, 2015

from Mount airy, Maryland asked:
September 5, 2014
what is the R.M.S. rating of these speakers
1 Answer
Hi Matt, RMS is about 40 watts on the ACE500.
Submitted by: Customer Service - Q&A on September 15, 2014

from Mount Airy, MD asked:
May 14, 2014
What Is the R.M.S. (Continuous) Wattage And The Program Wattage and Peak Wattage
1 Answer
Hi Matt, Great question! Peak power is how much a speaker can handle at maximum while RMS or Continuous power is how much wattage a speaker should be receiving to produce the optimal quality of sound. In other words, you never really want to push a speaker to its peak power rating, you want to run it at RMS. BM 2682
Submitted by: Customer Service - Q&A on May 15, 2014

Phil Blythe
from richmond, va asked:
May 4, 2012
Were the installation brackets included? Thanks
1 Answer
Hi Phil: All our in-ceiling speakers feature a dog leg mounting system that is part of the frame. You do not need a new constructing mounting kit to install these. Remove the grill and you will see the three mounting screws that need activate the dog ears. Look closely at the image on the product page of the back of the speaker. The mounting ears are at 3:00, 7:00 and 11:00 o'clock when you are looking straight at it. TL
Submitted by: Customer Service - Q&A on May 5, 2012

Product Reviews