The MartinLogan IC6-ST is a unique in-ceiling speaker engineered to deliver true stereo sound from a single speaker location. Featuring dual titanium dome tweeters and a dual voice-coil 6.5-inch woofer, it reproduces both left and right audio channels through one speaker, making it an ideal solution for spaces where installing a stereo pair isn't practical. Kitchens, bathrooms, hallways, offices, and entryways are perfect applications for the IC6-ST, providing balanced stereo performance while maintaining a clean architectural appearance.
Designed with MartinLogan's proven Installer Series architecture, the IC6-ST combines a mineral-filled polypropylene woofer with dual ferrofluid-cooled titanium dome tweeters for smooth highs, detailed vocals, and controlled bass. The proprietary Vojtko crossover network ensures seamless integration between the drivers, delivering natural, low-distortion sound with wide dispersion throughout the listening area.
Installation is straightforward thanks to the robust mounting-lock system and ultra-low-profile magnetic micro-perforated grille, which can be painted to blend seamlessly with virtually any ceiling. Optional square grilles and pre-installation brackets provide additional flexibility for professional custom installations while preserving the speaker's discreet appearance.
The IC6-ST can also be configured for mono operation by bridging its binding posts, providing broad sound coverage from a single location when stereo playback is unnecessary. Its versatile design makes it an excellent choice for distributed audio systems, multi-room installations, and compact spaces where premium sound quality and minimal visual impact are equally important.
- Component type: 2-way stereo in-ceiling speaker
- Configuration: Single-speaker stereo (dual tweeters and dual voice-coil woofer)
- High-frequency drivers: Dual 0.75-inch titanium dome tweeters
- Low-frequency driver: 6.5-inch dual voice-coil mineral-filled polypropylene cone woofer
- Frequency response: 52 Hz – 20 kHz (±3 dB)
- Sensitivity: 89 dB
- Impedance: Compatible with 4-ohm mono / 8-ohm stereo operation
- Crossover frequency: 3,000 Hz
- Recommended amplifier power: 15–80 W (mono) / 15–40 W (stereo)
- Maximum power handling: 100 W (mono) / 50 W (stereo)
- Inputs: Dual push-style binding posts (supports up to 12 AWG wire)
- Mounting depth: 3.17 in (8 cm)
- Overall dimensions: 8.7 × 3.46 in (22.1 × 8.8 cm)
- Required cutout: 7.75 in (19.6 cm) diameter
- Grille: Ultra-low-profile magnetic, paintable micro-perforated grille (optional square grille available)
- Design features: Dual tweeters, dual voice-coil woofer, stereo-from-one-speaker design, Vojtko crossover network, robust mounting-lock system