OSD Audio ACE800ST Trimless In-Ceiling Speaker
The OSD Audio ACE800ST is a trimless 8" in-ceiling speaker built for commercial-grade coverage — long cable runs, multi-speaker zones, and venues like restaurants, offices and retail floors. Mounted directly overhead, it also works well as a beefier Dolby Atmos height channel for a larger room.
Perfect for:
- A larger or louder room that needs more headroom than a 6.5" ceiling speaker can give
- Dolby Atmos / height channel duty in bigger home theaters
- Commercial background music runs off a 70V line
Key Benefits
120W Handling, Trimless Finish
An 8" polypropylene woofer and 1" PEI dome tweeter handle up to 120W, behind a magnetic, spray-paintable grille that sits flush with no visible trim ring.
Switchable 70V / 8Ω
A dual 70V/25V transformer with 32W/16W/8W/4W taps switches to a standard 8 Ohm connection, so it runs equally well off a home AV receiver or a commercial 70V amplifier.
Technical Highlights
- 8" polypropylene cone woofer, rubber surround
- 1" PEI dome tweeter
- Power handling: 120W
- Sensitivity: 89dB
- Frequency response: 35Hz–20kHz
- Impedance: 8 Ohms / 70V (32W/16W/8W/4W taps)
- Dog-ear installation brackets, install templates included
- 10-year warranty
Ideal For
- 5.1.2 and 7.1.2 home theater height channels in larger rooms
- Commercial multi-zone background music
- Flush, low-visibility ceiling installs
Sold individually. Two required for a stereo height-channel pair.
