MartinLogan Motion 8i Center Channel Speaker
- Driver Size: 4 inches
- Speaker Type: Bookshelf, Center Channel
- Connectivity: Push Style With Banana Jacks
- Brand Tech: MartinLogan
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A compact, dual-purpose bookshelf or center channel speaker from MartinLogan, built for setups where space or placement flexibility matters.
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ASIN: B071Z2TL21Model: Motion 8iCategory: Speakers
Overview
Compact enough for tight placement, the MartinLogan Motion 8i is a bookshelf and center channel speaker with a 4-inch driver, designed to mount on a tabletop or wall in a stereo or home theater setup.
MartinLogan positions the Motion 8i to double as either a bookshelf speaker or a center channel, using banana jack push-style connections and a gloss black finish. Its small footprint and dual mounting options, tabletop or wall, make it flexible for placement in rooms where a floor-standing speaker or bulky center channel would not fit.
- Bookshelf or center channel design
- 4-inch driver
- Tabletop and wall mount options
- Gloss black finish
Who it's for
Fits buyers who need a compact, dual-purpose speaker for either stereo bookshelf use or as a center channel below or beside a TV. Less suited to anyone wanting a single large driver for deep bass, since this is a small 4-inch driver design.
Pros and cons
- Doubles as bookshelf or center channel speaker
- Tabletop or wall mounting for flexible placement
- Compact 8.5 lb build for easy positioning
- Small 4-inch driver limits low-end output on its own
- Best paired with a subwoofer for full-range sound
Performance notes
A 4-inch driver keeps the Motion 8i compact but limits how much low-frequency output it produces on its own, which is typical for a speaker meant to pair with a subwoofer in a full system rather than cover the full range alone. Push-style banana jacks give a secure wire connection, and the tabletop or wall mounting options let it fit into tighter spaces than a floor-standing design would allow.
Specifications
| Brand | MartinLogan |
|---|---|
| Model | Motion 8i |
| Dimensions & fit | |
| Driver Size | 4 incheslower than 64% of 34 speakers |
| Weight | 8.5 poundslower than 76% of 35 speakers |
| Dimensions | 5.2 × 22 × 5.6 inches |
| Dimensions | 5.2 x 22 x 5.6 in |
| Construction & materials | |
| Color | Gloss Black |
| Compatibility & installation | |
| Connectivity | Push Style With Banana Jacks |
| Mounting | Tabletop Mount, Wall Mount |
| Other details | |
| Speaker Type | Bookshelf, Center Channel |
| Brand Tech | MartinLogan |
Closest rivals on specs
Acoustic Audio by Goldwood PSC-43 Speaker- Weight 8.5 vs 6 pounds (+42%)
Dayton Audio SAT-BK 2-Way Satellite Speaker Pair- Weight 8.5 vs 5.8 pounds (+47%)
Dayton Audio CCS-33B 3-Way Center Channel Speaker- Weight 8.5 vs 5 pounds (+70%)
Frequently asked questions
Can the MartinLogan Motion 8i be used as a center channel?
Yes, it is designed to work as either a bookshelf speaker or a center channel.
How is the Motion 8i mounted?
It supports both tabletop placement and wall mounting.
What connection type does it use?
It uses push-style connectors with banana jacks.