About the MartinLogan Motion® 2i

Product highlights:
- elegantly curved cabinet with high-gloss piano black finish
- 1" x 1" Folded Motion tweeter
- 3-1/2" poly cone woofer with rigid dust cap
- frequency response: 115-23,000 Hz (±3dB)
- recommended amplifier power: 20-100 watts
- sensitivity: 86 dB
- impedance: 6 ohms
- acoustic suspension (sealed) design
- perforated metal grille
- custom-designed push-style binding posts accept pins, banana connectors, or bare wire
- includes wall-mount bracket
- 4-3/4"W x 10"H x 4-1/2"D
- weight: 3.4 lbs.
- warranty: 5 years (with product registration)
- MFR # Motion 2i
- Item # 839MO2IB
- California customers: Please click here for your Proposition 65 WARNING.
Our take
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What's in the box:
MartinLogan Motion® 2i owner's manual
If you need assistance accessing this owner's manual, please give us a call.- Bookshelf loudspeaker
- Grille
- Two-piece wall-bracket
- 1/4"-20 Shoulder bolt
- 4 Self-adhesive rubber pads
- Cleaning cloth
- User's Manual (En/Fr)
- Installation template
- Product Registration Card
More details on the MartinLogan Motion® 2i

Features & specs
Cabinet & design | ||
---|---|---|
Enclosure | Sealed | |
Finish | Piano Lacquer | |
Color | Gloss Black | |
Recommended stand height (inches) | 28-31 | |
Wall-mountable | Yes | |
Bracket included | Adjustable bracket | |
Connector type | Spring post | |
Bi-amp inputs | No | |
Driver details | ||
Tweeter type | Folded Motion Ribbon | |
Tweeter size (inches) | 0.94 x 1 | |
Midrange size (inches) | N/A | |
Woofer size (inches) | 3.5 | |
Woofer composition | Poly | |
Woofer surround | Rubber | |
Audio specs | ||
Power range (watts) | 20-100 | |
Sensitivity | 86 dB | |
Impedance (ohms) | 6 | |
Frequency response | 115-23k Hz | |
Dimensions & other info | ||
Height (inches) | 10 | |
Width (inches) | 4-3/4 | |
Depth (inches) | 4-1/2 | |
Weight (pounds) | 3.4 | |
Parts warranty | 5 Yrs w/ Registration | |
Labor warranty | 5 Yrs w/ Registration |
Product Research
Features
Folded Motion Tweeter: MartinLogan's Folded Motion Tweeter helps give the 2i bookshelf loudspeaker its natural, realistic high frequency sound. Lightning fast transient response, combined with a large surface area (8x that of a typical 1" dome tweeter) creates clear, dynamic, and precise sound. The 0.94" x 1" Folded Motion Tweeter works by moving air (which creates sound) perpendicular to the folded ridges of the diaphragm, similar to how an accordion works. This extremely low mass diaphragm "squeezes" air and requires almost 90% less excursion than the typical 1" dome tweeter, which drastically minimizes distortion while providing a lightning fast response time. The increased surface area also provides a wide, yet controlled sound dispersion (80°x80°) to create a realistic and carefully etched sound stage.
3.5" Poly Cone Woofer: The MartinLogan 2i loudspeaker features a 3.5" poly cone woofer with a stamped steel basket housed in a non-resonant asymmetrical chamber. The poly cone woofer uses a rigid structured dust cap to reduce cone break-up and distortion. This 3.5" cone woofer provides rich, detailed midbass.
Precision Vojtko Crossover: To seamlessly blend the audio output from the high frequency driver (tweeter) and the midbass driver (woofer), the 2i loudspeaker features a precision Vojtko crossover (3800Hz) utilizing custom air core coil and low DCR steel laminate inductors, polyester film capacitors in series, and low DF electrolytic capacitors in parallel.
Curved High-Gloss Black Sealed Cabinet: Complementing the 2i loudspeaker's sonic accuracy is its elegant, yet understated styling. A high-gloss, piano black finish and subtle curves, along with MartinLogan's signature perforated grille, give the 2i speaker an elegant and timeless look that will blend into almost any decor. The cabinet is an acoustic suspension design (sealed) for tighter, accurate midbass. The grille is magnetic and detachable.
Spring-Post Connectors: The MartinLogan 2i speaker features two spring-post connectors to attach your speaker wire. The spring-posts will accept bare wire (16- to 10-gauge), pin-connectors, and banana plugs (single only).
Versatile Mounting Options: The MartinLogan 2i bookshelf loudspeaker can simply be placed on a table-top, stand, shelf, or other flat surface. Four self-adhesive rubber feet are included for safe and secure placement. Using the included keyhole-slot bracket, you can wall-mount the speaker at two different angles. This means you can point sound directly toward the desired listening area for high or low wall mounting applications. In addition the 2i is fitted with a 1/4"-20 threaded insert which allows you to hang the speaker on the wall using optional articulating wall-mount brackets (sold separately).
- If the 2i is being mounted at approximately ear-level, the speaker should be oriented with the tweeter at the top. This will disperse sound directly towards the desired listening area.
- If the 2i is be mounted above ear-level, the speaker should be oriented with the tweeter at the bottom. This will disperse the sound down at a 20° angle towards the listening area.
The MartinLogan Motion® 2i replaces these items:
- frequency response 110-25,000 Hz
- 1" x 1.4" Folded Motion tweeter and 3-1/2" poly cone woofer
- includes wall mount bracket for versatile installation options
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Customer Q&A
2 questions already asked
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I have a pair of these in my bedroom hooked to a Harman Kardon receiver and a JBL subwoofer for a 2.1 system for my TV and they sound great. Can't go wrong with Martin Logan's, I've had my big SL3's for 22 years and still going strong.
Rich from Valrico, FL