MartinLogan Motion SLM X3 3-Channel Soundbar - Gloss Black 

Demo - Excellent Condition - Outstanding Value 

Retail: $1,199.99 

• Condition: Excellent condition with original box, packing, and all accessories
• Configuration: 3-channel soundbar (Left-Center-Right) with Folded Motion tweeters
• Dimensions: 48" W x 6.3" H x 2.0" D (with wall bracket)
• Warranty: Full 5-Year MartinLogan factory warranty

Company Heritage

For over four decades, MartinLogan has represented the pinnacle of electrostatic loudspeaker design, founded by Gayle Martin Sanders and Ron Logan Sutherland in 1983. Based in Lawrence, Kansas, MartinLogan has earned international acclaim for creating speakers that deliver reference-grade performance typically reserved for the most demanding audiophile applications. The Motion Series extends this legendary electrostatic heritage into compact, accessible designs without compromising the company's uncompromising commitment to sonic excellence.

Motion SLM X3 - Revolutionary Ultra-Slim Design

The Motion SLM X3 represents MartinLogan's answer to the modern home theater dilemma: how to achieve reference-quality sound with today's ultra-thin televisions. Despite its remarkable 2-inch depth, this 3-channel soundbar delivers the acoustic performance of three separate high-end speakers. Our customers consistently choose the SLM X3 as their preferred center channel solution, praising its nearly invisible profile and the crystal-clear, musical sound that defines the MartinLogan brand.

Folded Motion Technology - Electrostatic Heritage

The heart of the SLM X3 lies in its three Folded Motion tweeters - each derived from MartinLogan's legendary electrostatic technology. These revolutionary transducers work by moving air perpendicular to folded diaphragm ridges, similar to an accordion, requiring 90% less excursion than conventional dome tweeters. This ultra-low-mass design eliminates distortion while delivering lightning-fast transient response and the pristine clarity that has made MartinLogan famous among discerning audiophiles.

Advanced Driver Engineering & Performance

Folded Motion Tweeter Technology:

• Three 1" x 1.4" Folded Motion transducers with 5.25" x 1.75" diaphragms
• 80° x 80° dispersion pattern for wide sweet spot
• Lightning-fast response with minimal distortion
• Frequency response extending to 25kHz for exceptional detail

Precision Mid-Bass Array:

• Six custom 4-inch ultra-slim fiber cone woofers
• High-excursion design for maximum output in minimal depth
• Advanced motor systems for controlled, articulate bass
• Frequency response down to 120Hz for full-range capability

Professional Installation & Connectivity

Ultra-Slim Profile Engineering:

• Revolutionary 2-inch depth cabinet design
• High-impact plastic construction with brushed aluminum baffle
• Magnetic grille system for clean aesthetics
• Weight: Only 13 lbs for easy installation

Versatile Mounting Options:

• Keyhole wall-mount system with included brackets
• Included kick-stand brackets for free-standing operation
• Perfect fit beneath ultra-thin televisions
• Magnetic logo positioning for any orientation

Professional Connections:

• Six binding posts (two per channel) for separate amplification
• 4-ohm nominal impedance compatible with all receivers
• Custom air-core inductors and film capacitors
• Thermal/current protection for long-term reliability

Outstanding Professional Reviews

"Even if it sold for double its price, I would still consider it a bargain for the sound. If you need a surround speaker or just better sound for your TV, do not hesitate." - Francisco Licon, Secrets of Home Theater and High Fidelity

"In MartinLogan's Motion SLM X3 you get superb sound quality in three discrete channels with separation that's among the best I've heard from anything like a soundbar, and with clarity that may be unrivaled." - Kevin East, SoundStage Xperience

Sonic Characteristics:

• Crystal-clear dialogue reproduction with center channel precision
• Expansive soundstage rivaling separate speaker arrays
• Musical, natural tonal balance across all frequencies
• Dynamic range and clarity that scales with source quality

Versatile Applications & System Integration

Perfect Applications:

• Primary center channel for high-end home theaters
• Complete 3-channel front stage for space-constrained systems
• Wall-mounted solution for ultra-thin television setups
• Professional installations requiring minimal visual impact

System Compatibility:

• Seamlessly integrates with other MartinLogan Motion speakers
• Ideal match for existing electrostatic main speakers
• Compatible with 4, 6, or 8-ohm rated amplifiers
• Designed for subwoofer integration (recommended below 120Hz)

Installation Flexibility:

• Wall-mount behind television for invisible integration
• Desktop placement with included stand system
• Equipment cabinet integration with kick-stand brackets
• Horizontal or vertical orientation capability

Complete Specifications

• Drivers: Three 1" x 1.4" Folded Motion tweeters, Six 4" fiber cone woofers
• Frequency Response: 120Hz-25kHz, ±3dB
• Impedance: 4 ohms nominal, compatible with 4/6/8-ohm amplifiers
• Sensitivity: Not specified
• Crossover: Custom air-core inductors with polyester film capacitors
• Dimensions: 48" W x 6.3" H x 2.0" D (with wall bracket)
• Weight: 13 lbs • Finish: High-gloss black

Exceptional Value Opportunity

These carefully maintained customer returns represent an outstanding opportunity to experience MartinLogan's acclaimed Folded Motion technology at substantial savings. Each unit has been thoroughly tested and repacked in original factory packaging with all accessories. Some customers find the ultra-slim profile doesn't suit their specific installation requirements, creating this exceptional opportunity for savvy buyers. "Believe it or not, despite the high price - this is our best-selling center channel speaker. I use them in my family room."

What's Included

• MartinLogan Motion SLM X3 soundbar in original factory packaging
• Wall-mount bracket system with hardware
• Kick-stand brackets for free-standing operation
• Magnetic grille and positioning hardware
• Owner's manual and setup documentation
• Full MartinLogan factory warranty coverage

Why Choose Motion SLM X3

This remarkable soundbar will transform any television into a reference-quality audio source while maintaining the clean aesthetics demanded by modern home design. Backed by MartinLogan's legendary reputation for acoustic excellence and innovative engineering, the SLM X3 delivers electrostatic-quality performance in an impossibly slim profile that disappears visually while dramatically enhancing your audio experience.

Contact for technical questions. This ultra-slim marvel represents MartinLogan's electrostatic excellence in modern form.