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Motion i Compact
Speakers
Inspired by the clarity and detail of MartinLogan’s
ultra-high-end electrostatic loudspeakers, Motion 2i, 4i, 6i, and 8i feature
exquisite Folded Motion tweeters and powerful bass technology in compact and
affordable packages.
Folded Motion Tweeter
Key to performance is the lightning fast response of the
tweeter’s light-weight diaphragm combined with a large surface area (much
larger than a typical one-inch dome tweeter) which together achieve a smooth,
refined sound with stunning dynamic range and jaw-dropping clarity—certain to
inspire envy in audiophiles and non-audiophiles alike. Precision Vojtko
crossover topology features custom air core coil inductors, low DCR steel
laminate inductors, and polyester film and low DF electrolytic capacitors for a
seamless sonic presentation.
Engineered Curves
Flexible installation options allow table top or on-wall
installation of all four speakers. The Motion 2i and 4i bookshelf speakers can
also mount upside down to facilitate placement high on a wall. The Motion 6i
and 8i mount horizontally or vertically around a wall-mounted flat screen
television.
Frequency Response
70–23,000 Hz ±3dB
Dispersion
80° x 80°
Sensitivity
90 dB/2.83 volts/meter
Nominal Impedance
4 Ohms. Compatible with 4, 6 or 8 ohm rated amplifiers.
Recommended Amplifier Power
20-150 watts per channel
Crossover Frequency
2,900 Hz
Crossover Components
Custom air core coil and low DCR steel laminate inductors.
Polyester film capacitors in series and low DF electrolytic capacitors in
parallel. Overall system thermal/current protection.
High Frequency Transducer
1″ × 1.4″ (2.6cm × 3.6cm) Folded Motion
Transducer with 5.25″ × 1.75″ (13.3cm × 4.4cm) diaphragm
Low Frequency Driver
4″ (10.2cm) paper cone with stamped steel basket.
Non-resonant asymmetrical chamber format. Rigid structured dust cap to reduce
cone break-up modes. Folded bass reflex port.
Binding Posts
Push style with banana jacks
Weight
6lbs. (2.72kg) each
Overall Dimensions
(HxWxD)
12.6 x 5.6 x 5.7 (32cm x 14.3cm x 14.5cm)
Generating expert take…
MartinLogan emerged in the late 1970s from Lawrence, Kansas, when Gayle Martin Sanders and Ron Logan Sutherland, sharing a passion for electrostatic loudspeakers, united their engineering and design expertise. The duo, whose middle names inspired the brand, unveiled their breakthrough at the 1983 CES with the Monolith—the world's first practical hybrid electrostatic speaker, blending a curved panel for mids and highs with a dynamic woofer for bass. This American innovation addressed longstanding electrostatic limitations like fragility and poor low-end response, propelling the company from a high-end audio store collaboration to a dedicated manufacturing powerhouse.
The brand specializes in electrostatic and hybrid speakers, from flagship floorstanders like the CLX and Summit X to more accessible Motion Series designs, alongside complementary powered subwoofers and select electronics. Their proprietary thin-film transducers, advanced panel assembly, and room-optimized engineering define a lineup that prioritizes transparency and precision over conventional dynamic drivers, eschewing amplifiers, turntables, DACs, headphones, or cables.
Positioned firmly in the high-end market, MartinLogan commands respect among discerning audiophiles for its unwavering commitment to electrostatic purity, delivering ethereal soundstaging and timbral accuracy that make cabinets vanish. Now part of the PML group alongside Paradigm and Anthem, it blends Kansas heritage with rigorous innovation, appealing to buyers seeking reference-level realism in home audio and theater systems.
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