MARTIN LOGAN MOTION 40i

Second-hand. In good conditions. Signs of wear shown in the photos. Comes with original packaging, manuals, and accessories.

The Motion 40i floorstanding speaker delivers an outstanding audio experience through a refined combination of advanced technologies. At the heart of its crystal-clear sound is the Folded Motion® tweeter, designed to provide precise and detailed high-frequency response with minimal distortion. This is complemented by a 5.5-inch midrange driver and dual 6.5-inch aluminum cone woofers, ensuring deep, well-defined bass. The dual-woofer design, combined with a rear-firing bass port, enables powerful and accurate low-frequency reproduction without excessive resonance or imbalance.

The cabinet design has been carefully engineered to optimize acoustic performance. Reinforced with a thick front baffle and a fabric grille, it minimizes unwanted vibrations and enhances acoustic stability. The low-mounted woofers are strategically positioned to counteract floor bounce, a phenomenon that can negatively impact midrange and bass response.

Another key feature of the Motion 40i is the Vojtko crossover, a sophisticated filtering network that ensures a perfectly balanced response across all drivers. By using high-quality components and precise tuning, this crossover keeps each driver operating within its optimal frequency range, delivering a natural and well-balanced sound.

The speaker’s sleek design is complemented by premium details: drivers are concealed behind magnetic fabric grilles, framed by matte black trim for a modern, sophisticated look. The cabinet, made of durable 18mm MDF with a 31mm front baffle, reduces resonance and ensures faithful sound reproduction.

Finally, the Motion 40i features gold-plated, 5-way binding posts, providing secure and versatile connections, including support for bi-wiring, which allows for optimal separation of audio signals.

Technical specifications:

• Frequency Response: 40–25,000 Hz ± 3dB

• Recommended Amplifier Power: 20–300 watts per channel

• Horizontal Dispersion: 80°

• Vertical Dispersion: 80°

• Sensitivity: 92 dB / 2.83V / 1m

• Impedance: 4 Ohms (compatible with 4, 6, or 8 Ohm amplifiers)

• Crossover Frequency: 500 Hz and 2,600 Hz

Drivers

• High-Frequency:

  • 1" × 1.4" (2.6 cm × 3.6 cm) Folded Motion® tweeter

  • 5.25" × 1.75" (13.3 cm × 4.4 cm) diaphragm

• Mid-Frequency:

  • 5.5" (14 cm) aluminum cone

  • Non-resonant asymmetrical chamber design

  • Die-cast polymer basket

  • Rigid dust cap to reduce cone breakup

• Low-Frequency:

  • Dual 6.5" (16.5 cm) aluminum cone woofers

  • Non-resonant asymmetrical chamber design

  • Die-cast polymer basket

  • Structured rigid dust caps to minimize cone breakup

Crossover components

• Precision Vojtko™ Crossover

• Custom air-core coil inductors and low-DCR laminated steel inductors

• Polyester film capacitors in series

• Low-DF electrolytic capacitors in parallel

Connectivity

• Inputs: Custom tool-less 5-way binding posts

Dimensions and weight

• Weight: 22.2 kg 

• Dimensions (H × W × D): 107.9 cm × 19.2 cm × 32.6 cm