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  1. Home
  2. MartinLogan Speakers
  3. Passive Center Channel Speakers
  4. MartinLogan Motion 6i
MartinLogan Motion 6i Review
MartinLogan 6i - Front View

Compare To

Main Features

  • 1.0 x 1.0" Folded Motion Tweeter
  • 2 x 3.5" poly cone woofers with rigid dust caps Woofer
  • 120-23k Hz Frequency Response
  • 89 dB Sensitivity
  • Impedance: 6ohms
  • Power Range: 20-130 watts
  • Weight: 5.70 lbs / 2.59 kg
  • Dimensions(HxWxD): 5-1/4"x17-1/2"x4" / 134.0 x 445.0 x 102.0mm
MSRP: $300 (list price)
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MartinLogan 6i Review
MartinLogan 6i MartinLogan 6i
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Made by MartinLogan · United States · since 1982 · sold through dealers

MartinLogan Motion 6i is a 2-way Passive Radiator Center Channel speaker by MartinLogan. It was released in 2018. Center channel speaker is an important component of a home theater system set-up as it delivers the listener significant part of the on-screen dialogue from your television. It features a 1.0 x 1.0" Folded Motion Tweeter and 2 x 3.5" poly cone woofers with rigid dust caps Woofer. The speaker has a frequency range of 120-23k Hz and a sensitivity of 89 dB. MartinLogan 6i has an MSRP of 300$.

Room Size Suitability

The size of the room where you plan to use the MartinLogan 6i is a crucial factor in your decision. We have assessed its suitability for various room sizes based on its dimensions and maximum power output:

Listening Environment* Suitability
Near-fieldPoor
Small RoomAverage
Mid-size RoomGood
Large RoomAverage
Very Large RoomPoor

(* Approximate Room sizes: Small < 100sq. ft / 9 m2, Mid-size: 100-220 sq. ft / 9-20 m2, Large 220-400 sq. ft / 20-36 m2, Very Large: > 400 sq. ft / 36 m2. Average Floor Height: 9" / 2.7m. Typical room sizes differ from country to country, and the actual listening experience changes depending on floor height, room shape, surface materials, listening position, speaker locations, etc.)

MartinLogan 6i  Lifestyle
MartinLogan 6i Lifestyle

MartinLogan's Motion Series of Loudspeakers

Motion 6i is a member of MartinLogan's Motion series of Passive speakers. The Motion range are MartinLogan's popular speakers using the brand's Folded Motion tweeter in conventional cabinets. Below you can see the main specs of these speakers.

See all 10 MartinLogan Motion models compared »

MartinLogan Motion Series Speakers
Model Frequency SensitivityImpedance Woofer
MartinLogan 60XTi
Compare
35-25k Hz 94 dB4Ω 2 x 8"
MartinLogan 15i
Compare
60-25k Hz 92 dB5Ω 1 x 5.25"
MartinLogan 35XTi
Compare
50-25k Hz 92 dB4Ω 1 x 6.5"
MartinLogan 40i
Compare
40-25k Hz 92 dB4Ω 2 x 6.5"
MartinLogan 50XTi
Compare
50-25k Hz 94 dB4Ω 2 x 6.5"
MartinLogan 20i
Compare
46-25k Hz 90 dB4Ω 2 x 5.5"
MartinLogan LX16
Compare
60-25k Hz 92 dB5Ω 1 x 5.25"
MartinLogan 30i
Compare
65-25k Hz 91 dB4Ω 1 x 5.25"
MartinLogan 6i
120-23k Hz 89 dB6Ω 2 x 3.5"
MartinLogan 8i
Compare
70-23k Hz 89 dB4Ω 2 x 4"
MartinLogan Motion Series Speakers
MartinLogan Motion Series Speakers

Frequency Response of the MartinLogan 6i Speaker

MartinLogan 6i has a Frequency response range of 120-23k Hz and Power Range of 20-130 watts.

Here we have a comparison of how Motion 6i's Low frequency value compares with the average, max and min Low frequency values in its class.
Low Frequency
Center Channel Speakers
MartinLogan 6i
Min
Average
Median

MartinLogan 6i Tweeter
MartinLogan 6i's Folded Motion Tweeter

MartinLogan 6i Crossover
MartinLogan 6i Crossover

Impedance and Sensitivity

MartinLogan 6i's nominal impedance level is 6 ohms and has a sensitivity of 89 dB.

Sensitivity
Center Channel Speakers
MartinLogan 6i
Min
Average
Median

Nominal Impedance of the 6 Ohms makes the MartinLogan Motion 6i a relatively difficult to drive speaker compared to more frequently found 8 ohms speakers from nominal Impedance perspective.

Sensitivity

89dB of the MartinLogan Motion 6i is an average sensitivity for stereo speaker so it is neither easy nor difficult to drive Sensitivity wise. Work out how loud the MartinLogan 6i plays in your room →

Running more than one pair from a single amplifier? Check the load it would present →

What amplifier does the MartinLogan 6i need?

At normal listening levels in a medium room, about 13–130 W per channel into 6 ohms. Set your own conditions and we will rank every amplifier we cover.

We check power, impedance safety and current delivery - not just watts.

Prefer to browse? Integrated amplifiers under $300, or every amplifier we cover.

Input Type

Motion 6i features Spring post type connectors.

Work out what gauge speaker cable this run needs →

MartinLogan 6i Back View
MartinLogan 6i Back View

MartinLogan 6i Terminals
MartinLogan 6i's Spring post terminals

Recommended Break In

Allow 72 hours of break-in at 90 dB.

MartinLogan 6i External Dimensions and Weight

MartinLogan 6i has external dimensions of (Height x Width x Depth) 5-1/4 x 17-1/2 x 4inch (134.0 x 445.0 x 102.0mm ).

Base Surface Area
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited. The base area of MartinLogan 6i is approximately 453.9cm2 / 70.4inch2.

Find speakers that fit your shelf or alcove →

Weight

The MartinLogan 6i weighs 2.59kg / 5.7lbs per piece. Here is a comparison of how Motion 6i's weight compares with the average, max and min weights in its class.

Weight
All Center Channel Speakers
MartinLogan 6i
Min
Average
Median
Weight
Center Channel Speakers under $300
MartinLogan 6i
Min
Average
Max

Cabinet type and Materials

MartinLogan 6i has a Passive Radiator type cabinet.

Available colors

MartinLogan 6i is available in Gloss Black, Matt White and Red Walnut.

Does the MartinLogan 6i come with a Grille?

Motion 6i comes with perforated metal grilles. The purpose of the grille is to protect the delicate driver elements from external impacts while still allowing the sound to pass as clearly as possible.

MartinLogan 6i  with Grille
MartinLogan 6i with Grille

What's in the Box of MartinLogan 6i?

Here are the items that are included inside the box of Motion 6i:
  • LCR loudspeaker
  • Grille
  • 2 Wall-bracket
  • 2 Shoulder bolts
  • 4 Rubber bumpers
  • Cleaning cloth
  • User-feets Manual (En/Fr)
  • Installation template
  • Product Registration Card

Recommended Accessories

Here is a list of accessories that we think you may need for the MartinLogan Motion 6i.

  • Speaker Cable and Connectors
    • Speaker Cables with Banana Plugs: If you know the lenght of the cable you need, this is the easier option to connect your speakers with your amp.
    • Speaker Cables without Connectors: If you are not sure about the lenght or need longer than standard cables with plugs, choose this option.
    • Banana Connectors and Plugs: If you chose the cables without connectors option or already have some cable around, pick the banana plugs separately.
  • Vibration Isolators: IsoAcoustics isolators are our favorite isolators but you may find more affordable options too.
  • Acoustic Panels and Treatments: Your room is as important as your stereo equipment so acoustic treatments goes a long way in improving the overall performance.

User's Manual

For more information about how to setup, use and maintain the MartinLogan Motion 6i, use the direct link below to download the official manual document:
Download User Manual for MartinLogan 6i

Official Brochure

Here is a link to download the official brochure for the MartinLogan Motion 6i speaker:
Official Brochure for MartinLogan 6i

Official Product Page

Official manufacturer's product page for the MartinLogan Motion 6i speaker can be found below:
Official Product Page for MartinLogan 6i

Warranty

5 Yrs w/ Registration of parts warranty and 5 Yrs w/ Registration of labor warranty is generally provided by the manufacturer.

MartinLogan Motion 6i Alternatives in Passive Center Channel Speakers
Model Type Sensitivity Impedance Frequency
MartinLogan 8i
Compare
2-way 89 dB 4 ohms 70-23k Hz
MartinLogan 30i
Compare
2-way 91 dB 4 ohms 65-25k Hz
MartinLogan 60XTi
Compare
3-way 94 dB 4 ohms 35-25k Hz
MartinLogan 40i
Compare
3-way 92 dB 4 ohms 40-25k Hz
MartinLogan 20i
Compare
2-way 90 dB 4 ohms 46-25k Hz
MartinLogan 15i
Compare
2-way 92 dB 5 ohms 60-25k Hz
MartinLogan LX16
Compare
2-way 92 dB 5 ohms 60-25k Hz
MartinLogan 15
Compare
2-way 92 dB 5 ohms 60-25k Hz
Frequently Asked Questions about MartinLogan Motion 6i

What amplifier do you need for the MartinLogan 6i?

MartinLogan rates the MartinLogan 6i for 20-130 watts of amplifier power. It is a 6-ohm speaker, which most amplifiers and receivers handle without trouble.

Is the MartinLogan 6i easy to drive?

The MartinLogan 6i has a sensitivity of 89 dB. That is about average for a home speaker, so it is neither hard nor especially easy to drive.

Does the MartinLogan 6i need a subwoofer?

The MartinLogan 6i reaches down to 120Hz (full range 120-23k Hz). That leaves the lowest octaves out, so a subwoofer will make a clear difference for films and bass-heavy music.

What drivers does the MartinLogan 6i use?

The MartinLogan 6i is a 2-way design using a 1.0 x 1.0" Folded Motion tweeter and 2 x 3.5" poly cone woofers with rigid dust caps woofers.

Is the MartinLogan 6i sealed or ported?

The MartinLogan 6i uses a Passive Radiator enclosure. A passive radiator does the job of a port without the vent noise, which suits compact cabinets.

Can the MartinLogan 6i be wall mounted?

The MartinLogan 6i does not include a wall-mount bracket or keyhole, so it is designed to sit on a stand, shelf or the floor.

Does the MartinLogan 6i come with grilles?

Yes. The MartinLogan 6i comes with removable grilles.

How big and heavy is the MartinLogan 6i?

The MartinLogan 6i weighs 2.59kg / 5.7lbs each and measures 5-1/4 x 17-1/2 x 4inch (HxWxD).

How much does the MartinLogan 6i cost?

The MartinLogan 6i has a manufacturer's list price (MSRP) of $300 per pair.


MartinLogan 6i Detailed Specifications

General
BrandMartinLogan
Full Model NameMartinLogan Motion 6i
Speaker Type2-way Center Channel
Suggested Break-in PeriodAllow 72 hours of break-in at 90 dB
Power Range20-130 watts
Sensitivity89 dB
Impedance6 ohms
Frequency Response120-23k Hz
Release Date2018
DRIVERS
Woofer Size3.5-inch
Woofer Compositionpoly cone woofers with rigid dust caps
Tweeter Size1.0 x 1.0-inch
Tweeter TypeFolded Motion

CONNECTIONS
Connector TypeSpring post
PHYSICAL SPECS
Height134.0mm ( 5-1/4-inch)
Width445.0mm ( 17-1/2-inch)
Depth102.0mm ( 4-inch)
Height134.0mm ( 5-1/4-inch)
Weight2.59 kg (5.7 lbs)
EnclosurePassive Radiator
Available ColorsGloss Black, Matt White, Red Walnut
Mounting BracketNo
GrilleYes
Moisture ResistanceNo
OTHER
Handheld RemoteNo
Parts Warranty5 Yrs w/ Registration
Labor Warranty5 Yrs w/ Registration
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