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MartinLogan Motion XT CI XTW5-LCR vs Monitor Audio CP-WT380IDC Comparison

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MartinLogan Motion XT CI XTW5-LCR

Passive In-wall | 61-25kHz

MartinLogan Motion XT CI XTW5-LCR
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Monitor Audio CP-WT380IDC

Passive In-wall | 50-30kHz

Monitor Audio CP-WT380IDC
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MartinLogan Motion XT CI XTW5-LCR MartinLogan Motion X...
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Monitor Audio CP-WT380IDC Monitor Audio CP-WT3...
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MartinLogan Motion XT CI XTW5-LCR vs Monitor Audio CP-WT380IDC Speaker Comparison

In this review, we will be comparing Motion XT CI XTW5-LCR and CP-WT380IDC, two Passive In-wall speakers from MartinLogan and Monitor Audio.

Let's have a brief look at the main features of MartinLogan Motion XT CI XTW5-LCR and Monitor Audio CP-WT380IDC first before getting into our more detailed comparison.

MartinLogan Motion XT CI XTW5-LCR Key Specs

  • 2-way Design
  • 1.27 x 2.4" Folded Motion Ribbon Tweeter
  • 2 x 5.25" Kevlar Woofer
  • 61-25kHz Frequency Response
  • 92 dB Sensitivity
  • Impedance: 8ohms
  • Power Range:50-125watts
  • Dimensions (H x W x D): 166.0" x 14.5000" x 3.3125"( 166.0 x 369.0 x 85.0mm )

Monitor Audio CP-WT380IDC Key Specs

  • 3-way Design
  • 1" Hard-Dome Tweeter
  • 4" Midrange
  • 8" C-CAM Woofer
  • 4" Midrange
  • 50-30kHz Frequency Response
  • 89 dB Sensitivity
  • Impedance: 6ohms
  • Power Range:30-120watts
  • Dimensions (H x W x D): 437.0" x 10.5625" x 3.8750"( 437.0 x 269.0 x 99.0mm )

What size room are the MartinLogan Motion XT CI XTW5-LCR and Monitor Audio CP-WT380IDC 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 XT CI XTW5-LCR Monitor Audio CP-WT380IDC
Near-field Poor Poor
Small Room Average Average
Mid-size Room Good Good
Large Room Average Average
Very Large Room Poor 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 XT CI XTW5-LCR and Monitor Audio CP-WT380IDC compare and hopefully end up with enough arguments to decide which one of these loudspeakers is the better choice for you.


**This post contains affiliate links, and I will be compensated if you make a purchase after clicking through my links. As an Amazon Associate I earn from qualifying purchases.


Drivers

One of the fundamental differences between these two speakers is that Motion XT CI XTW5-LCR is a 2-way design whereas the CP-WT380IDC 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 XT CI XTW5-LCR Monitor Audio CP-WT380IDC
Driver Setup 2-way 3-way
Tweeter 1.27 x 2.4-inch 1-inch
Midrange - 1 x 4-inch
Woofer 2 x 5.25-inch 1 x 8-inch

Motion XT CI XTW5-LCR features a 1.27 x 2.4" Folded Motion Ribbon Tweeter and 2 x 5.25" Kevlar Woofer . On the other hand, the CP-WT380IDC features a 1" Hard-Dome Tweeter , a 4" Midrange and 1 x 8" C-CAM Woofer .

Frequency Response

Motion XT CI XTW5-LCR has a frequency range of 61-25kHz whereas CP-WT380IDC has a frequency range of 50-30kHz. With a minimum frequency of 50Hz, the CP-WT380IDC can go significantly deeper on the low side and provide stronger bass compared to the Motion XT CI XTW5-LCR's min frequency of 61Hz.

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

Motion XT CI XTW5-LCR
CP-WT380IDC
Min
Average
Max
High Frequency

In-wall Speakers

MartinLogan Motion XT CI XTW5-LCR
Monitor Audio CP-WT380IDC
Min
Average
Max

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 XT CI XTW5-LCR is a 8 ohms speaker compared to the CP-WT380IDC which has a nominal impedance of 6 ohms.

These two speakers also have different sensitivity levels. Motion XT CI XTW5-LCR sensitivity is rated at 92 dB and the CP-WT380IDC's is rated at 89 dB. This 3 dB difference makes the MartinLogan Motion XT CI XTW5-LCR a more sensitive speaker compared to Monitor Audio CP-WT380IDC, hence will play louder with the same amount of watts.

Sensitivity

In-wall Speakers

Motion XT CI XTW5-LCR
CP-WT380IDC
Min
Average
Max

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 XT CI XTW5-LCR can handle a max power of 125 watts RMS from the amp the whereas CP-WT380IDC has a max power handling value of 120 watts RMS, 5 watts less than the Motion XT CI XTW5-LCR.

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 XT CI XTW5-LCR features Spring post type posts and CP-WT380IDC 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 XT CI XTW5-LCR's and Monitor Audio CP-WT380IDC's external dimensions. MartinLogan Motion XT CI XTW5-LCR has external dimensions of 166.0 x 369.0 x 85.0mm ( 6.5000-inch x 14.5000-inch x 3.3125-inch) whereas Monitor Audio CP-WT380IDC has external dimensions of 437.0 x 269.0 x 99.0mm ( 17.1875-inch x 10.5625-inch x 3.8750-inch) .

MartinLogan Motion XT CI XTW5-LCR is 271mm shorter and 14mm less deeper than Monitor Audio CP-WT380IDC but it is also 100mm wider.

What's in the Box of MartinLogan Motion XT CI XTW5-LCR?

Here are the items that are included inside the box of Motion XT CI XTW5-LCR:
  • In-wall LCR loudspeaker
  • Grille
  • T20 torx-bit
  • User-feets Manual
  • Cutout Template
  • What's in the Box of Monitor Audio CP-WT380IDC?

    Here are the items that come with the CP-WT380IDC:
  • In-Wall speaker
  • Magnetic grille
  • Paint skim
  • Installation Guide
  • Important Safety Instructions
  • Limited Warranty/Registration Card
  • MountingTemplate

  • Reasons to choose MartinLogan Motion XT CI XTW5-LCR over Monitor Audio CP-WT380IDC
    Max Input Power 125 watts vs 120 watts Handle more power from your amplifier
    Sensitivity 92 dB vs 89 dB Play louder with same amount of amplification power
    Nominal Impedance 8 ohms vs 6 ohms Less selective with amplifiers
    Number of Woofers 2 vs 1 More woofers
    Height 166mm vs 437mm Easier to fit in smaller spaces
    Price per pair* 2200USD vs 2350USD costs less (*prices may change depending on the seller, location and time)

    Reasons to choose Monitor Audio CP-WT380IDC over MartinLogan Motion XT CI XTW5-LCR

    Driver Setup 3-way vs 2-way Have a dedicated mid-range driver
    Woofer Size 8 inches vs 5.25 inches Larger woofer
    Low Frequency Response 50 Hz vs 61 Hz Generates deeper bass
    High Frequency Response 30k Hz vs 25k Hz Generates higher frequency
    Base Surface Area 266cm2 vs 313cm2 Takes less floor space
    MartinLogan Motion XT CI XTW5-LCR vs Monitor Audio CP-WT380IDC Specs Table
    Detailed comparison of specifications
    General MartinLogan Motion XT CI XTW5-LCR Monitor Audio CP-WT380IDC
    Brand MartinLogan Monitor Audio
    Speaker Type Passive In-wall Speaker Passive In-wall Speaker
    Power Range 50-125 watts 30-120 watts
    Sensitivity 92 dB 89 dB
    Impedance 8 ohms 6 ohms
    Frequency Response 61-25kHz 50-30kHz
    Drivers
    Woofer Quantity 2 1
    Woofer Size 5.25" 8"
    Woofer Composition Kevlar C-CAM
    Woofer Surround Material Rubber Rubber
    Tweeter Size 1.27 x 2.4" 1"
    Tweeter Type Folded Motion Ribbon Hard-Dome
    Aimable Tweeter Yes No
    Midrange Driver N/A" 4"
    Physical Specs
    Height 166.0mm (6.5") 437.0mm (17.2")
    Width 369.0mm (14.5") 269.0mm (10.6")
    Depth 85.0mm (3.3") 99.0mm (3.9")
    Enclosure In-wall In-wall
    Moisture Resistancy No No
    Connections
    Biamp Inputs No No
    Other
    Parts Warranty 5 Years Lifetime
    Labor Warranty 5 Years Lifetime

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