MartinLogan Motion 8i Center Channel Speaker


Free Lifetime Technical Assistance
SKU: Motion 8i


Motion i Compact Speakers

Inspired by the clarity and detail
of MartinLogan’s ultra-high-end electrostatic loudspeakers, Motion 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

Engineered Curves

Flexible installation options allow table top or on-wall installation. The
Motion 8i mount horizontally or vertically around a wall-mounted flat screen

Frequency Response

70–23,000 Hz ±3dB


80° x 80°


89 dB/2.83 volts/meter

Nominal Impedance

4 Ohms. Compatible with 4, 6 or 8 ohm rated amplifiers.

Recommended Amplifier Power

20-180 watts per channel

Crossover Frequency

3,000 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

Two 4″ (10.2cm) paper cone with stamped steel
basket. Non-resonant asymmetrical chamber format. Rigid structured dust cap
to reduce cone break-up modes. Sealed.

Binding Posts

Push style with banana jacks


8.5lbs. (3.85kg) each

Overall Dimensions

5.6 x 22.25 x 5.2 (14.2cm x 56cm x 13.2cm)

Additional information

Weight 8.00000000 lbs
Dimensions 25.0 × 8.0 × 7.0 in


There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.