OSD ACE400 3" Compact Trimless In-Ceiling Speakers (Pair)
The OSD ACE400 3-Inch Compact Trimless In-Ceiling Speakers (Pair) deliver clean, balanced background audio and distributed sound reinforcement with an ultra-discreet ceiling footprint. Engineered with a 3-inch polypropylene cone woofer featuring an integrated high-frequency whizzer cone, the ACE400 provides crisp vocal articulation and wide sound dispersion across 150Hz to 20kHz. Equipped with an ultra-thin, paintable magnetic grille that sits virtually flush against drywall, this compact architectural loudspeaker is the ideal aesthetic solution for hallways, kitchens, bathrooms, and modern multi-room distributed residential or commercial audio installations.
If you want to know how to install discreet compact ceiling speakers without bulky frames, what small in-ceiling speakers fit tight ceiling joists, or how to achieve seamless whole-house background music, the OSD ACE400 delivers the perfect balance of performance and invisibility. Audio installers, smart home integrators, and design-conscious homeowners searching for 60W peak power handling, 8-ohm stability, and fast dog-ear mounting will appreciate the sleek craftsmanship and dependable acoustic engineering of the OSD ACE Series.
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Ultra-Discreet Compact Architectural Footprint
Designed for spaces where visual minimalism is paramount, the OSD ACE400 features a compact 3-inch driver assembly that requires a cutout diameter of only 4.25 inches. Its micro footprint blends effortlessly alongside modern recessed lighting and architectural fixtures, delivering satisfying ambient audio without compromising room aesthetics.
Polypropylene Cone with Whizzer High-Frequency Extension
The 3-inch moisture-resistant polypropylene cone woofer is engineered for long-term acoustic stability in humid environments like bathrooms and kitchens. The center-mounted dual-cone whizzer extends high-frequency dispersion up to 20kHz, ensuring clean vocal intelligibility and smooth musical detail across broad listening areas.
Trimless Magnetic Thin-Bezel Grille
The ACE400 utilizes OSD Audio's signature Edgeless trimless design. High-strength neodymium magnets securely hold the ultra-thin steel mesh grille firmly against the baffle. The grille can be spray-painted to match any ceiling paint or drywall texture, leaving behind an exceptionally clean, borderless appearance.
Heavy-Duty Dog-Ear Mounting Clamps
Installation is quick and reliable. The integrated rotating dog-ear mounting brackets clamp securely onto drywall ranging from 3/8-inch to 1-inch thick, creating a firm acoustic seal that eliminates baffle resonance and structural vibrations.
Specifications
| Speaker Type | 3-Inch Compact Trimless In-Ceiling Speaker |
| Packaging Quantity | Pair (2 Speakers Included) |
| Woofer Driver | 3-Inch Polypropylene Cone with Rubber Surround |
| High-Frequency Element | Integrated Acoustic Whizzer Cone |
| Power Handling | 30 Watts RMS / 60 Watts Peak |
| Frequency Response | 150 Hz - 20 kHz |
| Sensitivity | 87 dB (1W/1M) |
| Nominal Impedance | 8 Ohms |
| Cutout Dimensions | 4.25 Inches (108 mm) Diameter |
| Mounting Depth | 3.1 Inches (79 mm) |
| Overall Dimensions | 5.1 Inches (130 mm) Diameter |
| Grille Type | Magnetic Powder-Coated Paintable Steel Grille |
| Warranty | 10-Year Manufacturer Warranty |
In The Box Contents
- 2x OSD Audio ACE400 3-Inch Compact In-Ceiling Speakers
- 2x Paintable Magnetic Trimless White Metal Grilles
- 1x Cardboard Cutout Installation Template
- 1x Installation Manual
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Key Features
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