NCB825 MA - Loudspeaker OSD Audio - Free user manual and instructions
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| Product Type | In-Ceiling Loudspeaker |
| Brand | OSD Audio |
| Model | NCB825 MA |
| Speaker Design | 2-way coaxial with pivoting tweeter |
| Woofer Size | 8-inch (20.3 cm) polypropylene cone |
| Tweeter Size | 1-inch (2.54 cm) silk dome swivel tweeter |
| Frequency Response | 40 Hz - 20 kHz |
| Impedance | 8 ohms |
| Sensitivity | 90 dB (1W/1m) |
| Power Handling | 5 - 100 watts RMS |
| Mounting Type | Flush in-ceiling (cutout required) |
| Cutout Diameter | 7.25 inches (18.4 cm) |
| Overall Dimensions | 9.25 in (23.5 cm) diameter x 4.5 in (11.4 cm) depth |
| Weight | 3.5 lbs (1.6 kg) |
| Color | White (paintable grille) |
| Grille | Magnetic, removable and paintable |
| Installation | Built for new or existing ceilings |
| Application | Distributed audio, home theater, stereo |
| Maintenance | Dust with dry microfiber cloth; no solvents |
| Warranty | Limited lifetime warranty (residential) |
Frequently Asked Questions - NCB825 MA OSD Audio
What is the recommended amplifier power for the OSD Audio NCB825 MA?
The NCB825 MA is rated for 5 to 100 watts RMS. An amplifier delivering 10-50 watts per channel provides excellent performance without risk of distortion.
Can I paint the speaker grille to match my ceiling?
Yes, the grille is painter-friendly. Use thin acrylic or latex paint and maintain the perforations. Do not clog the holes.
What is the ideal mounting height for in-ceiling speakers?
For balanced coverage, mount them at ear level or above, typically between 2.1 and 2.7 meters from the floor, depending on room acoustics.
How do I wire the speaker to my amplifier?
Use 16-18 AWG speaker wire. Connect the positive (+) terminal to the amp's positive, and negative (-) to negative. Maintain polarity for correct imaging.
Are the speakers suitable for outdoor use?
The NCB825 MA is designed for indoor installations, such as living rooms or media rooms. For outdoor, use weatherproof-rated OSD Audio models.
How do I clean the speaker grille?
Gently remove the magnetic grille and wipe with a dry, soft microfiber cloth. Do not use water or cleaning solutions on the woofer or tweeter.
Can I use these speakers in a home theater setup?
Absolutely. They work as surround or height channels in a Dolby Atmos configuration. Pair with a subwoofer for full-range audio.
What tools are required for installation?
You'll need a drywall saw or hole saw, wire strippers, a screwdriver, and a stud finder if mounting near framing.
Is there a warranty for the NCB825 MA?
OSD Audio provides a limited lifetime warranty for residential use. Keep your receipt for coverage.
How do I troubleshoot a lack of sound?
Check the amplifier input, speaker wire connections, and ensure the receiver is set to the correct zone. Test with another pair of speakers to isolate the issue.
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USER MANUAL NCB825 MA OSD Audio
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Product information
Brand : OSD Audio
Model : NCB825 MA
Category : Loudspeaker