In this review, we will be comparing Motion CI MW4-LCR and 265-LS, two Passive In-wall speakers from MartinLogan and Polk Audio. Let's have a brief look at the main features
of MartinLogan Motion CI MW4-LCR and Polk Audio 265-LS first before getting into our more
detailed comparison.
MartinLogan Motion CI MW4-LCR Key Specs
- 2-way Design
- 1" Folded Motion Ribbon Tweeter
- 2 x 4" Fiberglass Woofer
- 78-25kHz Frequency Response
- 93 dB Sensitivity
- Impedance: 8ohms
- Power Range:50-100watts
- Dimensions (H x W x D): 134.0" x 11.8750" x 2.6875"( 134.0 x 302.0 x 69.0mm )
Polk Audio 265-LS Key Specs
- 3-way Design
- 1" Ring Radiator Tweeter
- 6.5" Midrange
- 6.5" Aerated polypropylene Woofer
- 6.5" Midrange
- 28-33kHz Frequency Response
- 91 dB Sensitivity
- Impedance: 8ohms
- Power Range:10-200watts
- Weight:4.09kg
- Dimensions (H x W x D): 488.0" x 7.2500" x 0.0000"
What size room are the MartinLogan Motion CI MW4-LCR and Polk Audio 265-LS speakers good for?
The size of the room in which you are planning to use these loudspeakers is an important decision factor. Here we have compared their suitability to various sizes of environments considering their size and max power parameters:
| Listening Environment* |
MartinLogan Motion CI MW4-LCR |
Polk Audio 265-LS |
| Near-field |
Average |
Poor |
| Small Room |
Good |
Average |
| Mid-size Room |
Average |
Good |
| Large Room |
Poor |
Average |
| Very Large Room |
Bad |
Poor |
(* 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.)
In the following sections, we will get into more detail in order to better understand how the MartinLogan Motion CI MW4-LCR and Polk Audio 265-LS compare and hopefully end up with enough arguments to decide which one of these loudspeakers is the better choice for you.
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Drivers
One of the fundamental differences between these two speakers is that Motion CI MW4-LCR is a 2-way design whereas the 265-LS is a 3-way speaker. 3-way designs utilize a midrange driver in addition to the tweeter and woofer on 2-way designs. Designing a crossover for a 3-way speaker is a complicated process and generally increases the overall cost of the speaker.
| Driver |
MartinLogan Motion CI MW4-LCR |
Polk Audio 265-LS |
|
Driver Setup
|
2-way
|
3-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
- |
1 x 6.5-inch |
|
Woofer
|
2 x 4-inch
|
1 x 6.5-inch
|
Motion CI MW4-LCR features a 1" Folded Motion Ribbon Tweeter and 2 x 4" Fiberglass Woofer . On the other hand, the 265-LS features a 1" Ring Radiator Tweeter , a 6.5" Midrange and 1 x 6.5" Aerated polypropylene Woofer .
Frequency Response
Motion CI MW4-LCR has a frequency range of 78-25kHz whereas 265-LS has a frequency range of 28-33kHz. With a minimum frequency of 28Hz, the 265-LS can go significantly deeper on the low side and provide stronger bass compared to the Motion CI MW4-LCR's min frequency of 78Hz.
Below graphs depict how these two speakers compare with the max, min and average values of the Min and Max Frequencies of other speakers in the In-wall class in our database.
Low Frequency
In-wall Speakers
High Frequency
In-wall Speakers
MartinLogan Motion CI MW4-LCR
None of these speakers achieves full range experience which is commonly agreed as 20Hz-20kHz. In order to achieve lower lows / deeper bass, we recommend you pair these with a subwoofer. Visit our Powered Subwoofers section to find out more about the available options.
Impedance and Sensitivity
Motion CI MW4-LCR and 265-LS have the same Impedance of 8 ohms but where they differ is the sensitivity levels. Motion CI MW4-LCR sensitivity is rated at 93 dB and the 265-LS's is at 91 dB. This 2 dB difference makes the MartinLogan Motion CI MW4-LCR a more sensitive speaker compared to Polk Audio 265-LS, hence will play louder with the same amount of watts.
Sensitivity
In-wall Speakers
Power Range
Power
range is the range of input power in watts RMS that a loudspeaker is designed to handle. While using an amplifier within this range ensures the nominal performance , inputting a power that is higher than the max wattage can result in a damaged speaker.
Motion CI MW4-LCR can handle a max power of 200 watts RMS from the amp the whereas Motion CI MW4-LCR has a max power handling value of 100 watts RMS , 100 watts less than the 265-LS.
Keep in mind that a higher max power handling value doesn't necessarily make that a louder speaker
compared to a lower max handling speaker. Loudness or the sound level is also impacted by parameters
such as Impedance, sensitivity and system efficiencies.
Input Type and Bi-Amping / Bi-Wiring
Motion CI MW4-LCR features Spring post type posts and 265-LS has a Spring post type posts. None of these speakers feature bi-amping/bi-wiring.
Physical Specs
Size of a speaker can sometimes become an important decision factor due to space constraints or in some cases purely for esthetic reasons. In this section, we are going to compare MartinLogan Motion CI MW4-LCR's and Polk Audio 265-LS's external dimensions. MartinLogan Motion CI MW4-LCR has external dimensions of 134.0 x 302.0 x 69.0mm ( 5.2500-inch x 11.8750-inch x 2.6875-inch) whereas Polk Audio 265-LS has external dimensions of ( 19.1875-inch x 7.2500-inch x 0.0000-inch) .
Polk Audio 265-LS is 117mm narrower and 69mm less deeper than MartinLogan Motion CI MW4-LCR but it is also 354mm taller.
What's in the Box of MartinLogan Motion CI MW4-LCR?
Here are the items that are included inside the box of Motion CI MW4-LCR:
In-wall loudspeakerGrilleTorx-bitUser-feets ManualCutout Template
What's in the Box of Polk Audio 265-LS?
Here are the items that come with the 265-LS:
In-wall loudspeakerWhite metal grillePower Port plugMounting templateOwners Manual
Sensitivity 
Number of Woofers 
Height 
Max Input Power 
Driver Setup 
High Frequency Response 
Base Surface Area 
Price per pair*