About the MartinLogan Motion CI MC8
Immersive overhead sound from MartinLogan
Immersive overhead sound from MartinLogan
Looking for an unobtrusive way to add music or home theater sound effects to your room? MartinLogan's Motion CI MC8 can deliver excellent performance without taking up any floor space.
Use a pair of these stealthy speakers for natural, revealing sound in your custom-installed audio system.

The MC8 uses the same tweeter design found in MartinLogan's acclaimed bookshelf and tower speakers.
An acclaimed tweeter delivers smooth, sweet highs
One of the reasons the Motion CI MC8 sounds so good is its Folded Motion® tweeter.
This unique, accordion-style design yields quick, accurate, and very smooth highs. The Folded Motion tweeter is paired here with an 8" woven fiberglass woofer for punchy bass and textured midrange.
Build a Motion Series home theater
The MC8 would make a great overhead speaker in an immersive Dolby Atmos® surround system made up of MartinLogan Motion Series speakers:
- floor-standing speakers for front left and right channels
- bookshelf speakers for front, rear, or surround channels
- center channel speakers for clear dialogue
DIY installation
If this is a do-it-yourself install, check out our guide to installing in-ceiling speakers, along with our selection of in-wall speaker wire.
You can paint the included magnetic grille to have your speaker blend in with your décor.
Product highlights:
- ideal for an in-ceiling music system or overhead surround effects in a home theater system
- 1" x 1.4" Folded Motion tweeter for smooth, natural highs
- 8" woven fiberglass woofer for punchy bass and textured midrange
- frequency response: 44-25,000 Hz (±3 dB)
- recommended amplifier power: 50-200 watts
- sensitivity: 91 dB
- impedance: 8-ohms compatible
- ultra-thin bezel and paintable magnetic grille to match your décor
- cutout diameter: 9-1/4"
- overall diameter: 10-3/8"
- mounting depth: 4-13/16"
- weight: 6 lbs.
- warranty: 5 years
- Our 60-day money-back guarantee
- MFR # MC8
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More details on the MartinLogan Motion CI MC8

Features & specs
Features | ||
---|---|---|
Quantity in Package | Single | |
Tweeter | Folded Motion Ribbon | |
Aimable Tweeter | No | |
Woofer Composition | Fiberglass | |
Woofer Surround | --- | |
Moisture-resistant | No | |
Connector Type | --- | |
Bi-Amp Inputs | No | |
Built-in Back-box | No | |
Specs | ||
Tweeter Size | 1" x 1.4" | |
Midrange Size | --- | |
Speaker Shape | Round | |
Woofer Size | 8 | |
Cutout Width | 9.25 | |
Cutout Height | 9.25 | |
Power Range (Watts) | 50-200 | |
Sensitivity | 91 dB | |
Impedance (Ohms) | 8 | |
Frequency Response | 44-25kHz | |
Parts Warranty | 5 Years | |
Labor Warranty | 5 Years |
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