OSD ACE640 6.5" Trimless Fiberglass In-Ceiling Speakers (Pair)
The OSD Audio ACE640 6.5-Inch High Definition Trimless In-Ceiling Speakers (Pair)—the architectural trimless evolution of OSD's acclaimed ICE640—deliver smooth, detailed music with solid 6.5-inch bass that effortlessly disappears into your ceiling. Engineered with a rigid 6.5-inch woven fiberglass cone woofer and a 1-inch pivoting titanium dome tweeter, the ACE640 produces tight, controlled midbass down to 40Hz and sparkling, directional high frequencies up to 20kHz with 150W power handling and 89dB sensitivity. Featuring gold-plated 5-way binding posts and an ultra-thin spray-paintable magnetic micro-flange grille that sits virtually flush against drywall, this high-definition pair is optimized for whole-house audio, TV sound, and home theater surrounds.
If you want to know how the trimless ACE640 improves on traditional framed in-ceiling speakers, how to aim high frequencies toward your primary seating position using a 1-inch pivoting titanium dome tweeter, or how fiberglass woofer cones maintain clean, low-distortion audio at high volumes, the OSD ACE640 provides an exceptional solution. Custom audio integrators and home theater enthusiasts searching for 150W power handling, 8-ohm stability, secure 5-way binding posts, and a 10-year warranty will appreciate the refined acoustic performance of this architectural pair.
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High-Definition Architectural Ceiling Sound
The OSD Audio ACE640 is the trimless version of OSD's popular ICE640 in-ceiling speaker. This 6.5-inch high-definition pair delivers smooth, detailed music with solid bass while disappearing into the ceiling—making it an outstanding choice for whole-house music, TV sound, and home theater surround channels without speaker boxes in the room.
Fiberglass Woofer & Pivoting Titanium Tweeter
A lightweight, rigid 6.5-inch fiberglass cone stays stiff and controlled as the volume goes up, preventing cone breakup and distortion across clean bass and midrange frequencies. The 1-inch pivoting titanium dome tweeter aims highs directly toward your seating area, ensuring clear dialogue and crisp detail even when cutouts are located off-center.
Trimless Magnetic Micro-Flange Grille
The micro-flange grille is held securely by strong neodymium magnets and sits close to the ceiling for a clean, flush finish. The white grille is spray-paintable to match your ceiling color perfectly, blending seamlessly alongside recessed lighting fixtures.
Gold-Plated 5-Way Binding Posts & Easy Dog-Ear Installation
Gold-plated 5-way binding posts accept bare wire, pins, spades, or banana plugs for a solid, corrosion-resistant connection that holds up in permanent installations. The built-in dog-leg mounting system requires no extra brackets: simply cut a 7.80-inch hole, wire the speaker, set it in place, and tighten the front screws to lock each speaker firmly in.
Specifications
| Speaker Type | 6.5-Inch High Definition Trimless In-Ceiling Speakers |
| Packaging Quantity | Pair (2 Speakers Included) |
| Woofer Driver | 6.5-Inch Woven Fiberglass Cone with Rubber Surround |
| Tweeter Driver | 1-Inch Pivoting Titanium Dome Tweeter |
| Power Handling | 150 Watts Peak |
| Frequency Response | 40 Hz - 20 kHz |
| Sensitivity | 89 dB (1W/1M) |
| Nominal Impedance | 8 Ohms |
| Cutout Dimensions | 7.80 Inches (198 mm) Diameter |
| Mounting Depth | 3.54 Inches (90 mm) |
| Overall Dimensions | 8.86 Inches (225 mm) Diameter |
| Inputs | Gold-Plated 5-Way Binding Posts |
| Grille Type | Magnetic Spray-Paintable Steel Grille Included |
| Warranty | 10-Year Manufacturer Warranty |
In The Box Contents
- 2x OSD Audio ACE640 6.5-Inch Fiberglass In-Ceiling Speakers
- 2x Spray-Paintable Magnetic Trimless White Metal Grilles
- 1x Cardboard Cutout Installation Template
- 1x Installation Manual
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