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Small Opening 3.5" In-Ceiling Speaker
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The IC3 in-ceiling speaker is the perfect blend of performance and lifestyle. A novel woofer design, molded directly on to the speaker's chassis, maximizes woofer size for incredible performance in an extremely small size. IC3 is perfect for any application where a discrete solution is ideal-from a hallway or kitchen to Atmos channels in a home theater.


  • Titanium Dome Tweeters and Poly Cone Woofers - Titanium dome tweeters used throughout the Installer Series are ferrofluid damped and cooled for smooth high-frequency performance with amazing clarity across a wide listening area. Mineral-filled polypropylene cone bass/midrange drivers feature robust computer-optimized ferrite magnets and high-power motor structures to deliver detailed midrange performance and clean, extended bass response.
  • Micro-Perforated Grilles - Installer Series speakers feature ultra-low profile, paintable, micro-perforated grilles with no visible bezel for a near invisible integration into any wall or ceiling. A series of powerful magnets hidden inside the speaker quickly secure grilles into place, reducing the risk of warping or damage during installation. To match modern aesthetics, optional square grilles are available for most in-ceiling models (excludes all-weather versions).
  • Precision Crossovers & Spring-Loaded Binding Posts - Carefully hand-built using only the finest polyester capacitors and air-core coils, Installer Series crossovers employ MartinLogan's proprietary Vojtko topology for vanishingly low distortion and seamless driver integration. This precision-tuned network preserves even the most microscopic sonic nuances while handling the full dynamics of any source. Spring-loaded binding posts feature a larger wire access hole and connect via banana plug, pin, or 12AWG bare wire.
  • Robust Mounting-Lock System - A simple, yet robust mounting-lock system allows quick, trouble-free installation. Pocketed screw holes help hold the drill steady, making installation a snap. When not in use, mounting locks are held securely within a self-contained housing. When moved into place, they couple the chassis firmly to the ceiling or wall, increasing the rigidity of surfaces. If ever removed, the locks retract and latch back in their housings. Each speaker includes a full-size installation template featuring quick-reference instructions, and die-cut guides for marking the cutout hole.
  • The IC3 and IC3-AW in-ceiling speakers feature upgraded die-cast aluminum mounting locks to maximize strength while allowing a reduction to the physical size of each mounting-lock.



Frequency Response

100-20,000 Hz

Recommended Amplifier Power

100 Watts




Compatible with 8 ohms

Crossover Frequency

1,800 Hz

High Frequency Transducer

0.75"(1.9cm) titanium dome

Low Frequency Transducer

3.5"(8.9cm) mineral-filled poly cone

Binding Post Inputs

Push style accommodates wire up to 12AWG


1.2 lbs. (0.5 kg)

Dimensions (overall size)

4.1"x 4.17 (10.4 x 10.6cm)

Cut-Out Dimensions

3-3/4"(9.5cm) dia.

Projection From Wall Surface


Depth Behind Wall Surface


Square Grille (sold separately)

C3 Square Grille

Pre-install Bracket (sold separately)

C3 & C3-AW Bracket


Manuals & Technical Documents

SpecificationMartinLogan-IC8AW-Spec Sheet.pdf
Technical DrawingsMartinLogan-IC3-Technical Drawing
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