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  1. Home
  2. Passive In-wall Speakers
  3. Monitor Audio CP-WT150 vs Monitor Audio CP-WT140LCR

Monitor Audio CP-WT150 vs Monitor Audio CP-WT140LCR Comparison

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Speaker to replace
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Monitor Audio CP-WT150

Passive In-wall | 75-25kHz

Monitor Audio CP-WT150
Check price atAmazon›
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Monitor Audio CP-WT140LCR

Passive In-wall | 60-25kHz

Monitor Audio CP-WT140LCR
Check price atAmazon›
Monitor Audio CP-WT150 Monitor Audio CP-WT1...
Check price atAmazon›
Monitor Audio CP-WT140LCR Monitor Audio CP-WT1...
Check price atAmazon›
Monitor Audio CP-WT1...
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Monitor Audio CP-WT1...
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Monitor Audio CP-WT150 vs Monitor Audio CP-WT140LCR Speaker Comparison

In this review, we will be comparing CP-WT150 and CP-WT140LCR, two Passive In-wall speakers by Monitor Audio.

Let's have a brief look at the main features of Monitor Audio CP-WT150 and Monitor Audio CP-WT140LCR first before getting into our more detailed comparison.

Key SpecsMonitor Audio CP-WT150Monitor Audio CP-WT140LCR
BrandMonitor Audio
United Kingdom · founded 1972
Monitor Audio
United Kingdom · founded 1972
Design2-way2-way
Tweeter1" Hard-Dome1" Hard-Dome
Woofer5" Poly2 x 4" Polymer
Frequency response75-25kHz60-25kHz
Sensitivity85 dB88 dB
Impedance6 ohms6 ohms
Power range20-50 watts20-100 watts
Dimensions (H x W x D)12.8125" x 8.1250" x 3.7500"
326.0 x 207.0 x 96.0mm
11.7500" x 7.1875" x 3.8125"
299.0 x 183.0 x 97.0mm

CP-WT150 and CP-WT140LCR are members of Monitor Audio's Controlled Performance series of speakers. Below you can find the loudspeakers from this series.

Monitor Audio Controlled Performance Series History
Model Body Frequency SensitivityImpedance Woofer
Monitor Audio CP-WT380IDC
  
In-wall 50-30kHz 89 dB6Ω 1 x 8"
Monitor Audio CP-WT150
In-wall 75-25kHz 85 dB6Ω 1 x 5"
Monitor Audio CP-WT240LCR
  
In-wall 60-25kHz 88 dB6Ω 2 x 4"
Monitor Audio CP-WT260
  
In-wall 65-25kHz 88 dB6Ω 1 x 6"
Monitor Audio CP-WT140LCR
In-wall 60-25kHz 88 dB6Ω 2 x 4"

What size room are the Monitor Audio CP-WT150 and Monitor Audio CP-WT140LCR 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* Monitor Audio CP-WT150 Monitor Audio CP-WT140LCR
Near-field Good Average
Small Room Good Good
Mid-size Room Average Average
Large Room Poor Poor
Very Large Room No way Bad

(* 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.)

The sections below take each area in turn: drivers, frequency response, physical size and what you get in the box.


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


Drivers

Both CP-WT150 and CP-WT140LCR are 2-way speakers.

Tweeter - 1 inchWoofer - 5 inch
Monitor Audio CP-WT150
Tweeter - 1 inchWoofer - 4 inchWoofer - 4 inch
Monitor Audio CP-WT140LCR

TweeterWoofer

Front view, drawn to scale - cabinets and drivers share one scale, so sizes are directly comparable. Hover a driver for its size.

Driver Monitor Audio CP-WT150 Monitor Audio CP-WT140LCR
Driver Setup 2-way 2-way
Tweeter 1-inch 1-inch
Midrange - -
Woofer 1 x 5-inch 2 x 4-inch

CP-WT150 features a 1" Hard-Dome Tweeter and 1 x 5" Poly Woofer. On the other hand, the CP-WT140LCR features a 1" Hard-Dome Tweeter and 2 x 4" Polymer Woofer.

Frequency Response

CP-WT150 has a frequency range of 75-25kHz whereas CP-WT140LCR has a frequency range of 60-25kHz. With a minimum frequency of 60Hz, the CP-WT140LCR can go significantly deeper on the low side and provide stronger bass compared to the CP-WT150's min frequency of 75Hz.

The graph below depicts how these two speakers compare with the max, min and average Low Frequency values of other speakers in the In-wall class in our database.

Low Frequency

In-wall Speakers

CP-WT150
CP-WT140LCR
Min
Average
Median

Neither pair reaches down to 20Hz, the usual definition of full-range, which is normal for speakers of this size. If you want the bottom octave for movies or bass-heavy music, add a subwoofer to whichever you choose. Visit our Powered Subwoofers section to find out more about the available options.

Impedance and Sensitivity

CP-WT150 and CP-WT140LCR have the same Impedance of 6 ohms but where they differ is the sensitivity levels. CP-WT150 sensitivity is rated at 85 dB and the CP-WT140LCR's is at 88 dB. This 3 dB difference makes the Monitor Audio CP-WT140LCR a more sensitive speaker compared to Monitor Audio CP-WT150, hence will play louder with the same amount of watts.

Sensitivity

In-wall Speakers

CP-WT150
CP-WT140LCR
Min
Average
Median

Power Range

Power range is the range of input power in watts RMS that a loudspeaker is designed to handle. Staying within that range gives nominal performance; driving the speaker beyond its maximum wattage can damage it.

CP-WT140LCR can handle a max power of 100 watts RMS, whereas CP-WT150 has a max power handling value of 50 watts RMS, 50 watts less than the CP-WT140LCR.

Note that higher power handling does not make a speaker louder: that depends mainly on sensitivity and impedance. The calculator below shows how loud each of these actually plays on a real amplifier.

Which plays louder on your amplifier?

Starting with a popular amplifier - change it to the one you own, or any you are considering, and watch both numbers move.

Monitor Audio CP-WT150
 
Monitor Audio CP-WT140LCR
 

Input Type and Bi-Amping / Bi-Wiring

CP-WT150 features Spring post type posts and CP-WT140LCR has a Spring post type posts. None of these speakers feature bi-amping/bi-wiring.

Physical Specs

The size of a speaker can sometimes be an important decision factor due to space constraints or in some cases purely for esthetic reasons. In this section, we are going to compare Monitor Audio CP-WT150's and Monitor Audio CP-WT140LCR's external dimensions. Monitor Audio CP-WT150 has external dimensions of 326.0 x 207.0 x 96.0mm (12.8125-inch x 8.1250-inch x 3.7500-inch) whereas Monitor Audio CP-WT140LCR has external dimensions of 299.0 x 183.0 x 97.0mm (11.7500-inch x 7.1875-inch x 3.8125-inch).

Monitor Audio CP-WT140LCR is 24mm narrower and 27mm shorter than Monitor Audio CP-WT150 but it is also 1mm deeper.

What's in the Box of Monitor Audio CP-WT150?

Here are the items that are included inside the box of CP-WT150:
  • In-wall speaker
  • Magnetic grille
  • Cosmetic scrim
  • Installation Guide
  • Important Safety Instructions
  • Limited Warranty/Registration Card
  • MountingTemplate

What's in the Box of Monitor Audio CP-WT140LCR?

Here are the items that come with the CP-WT140LCR:
  • In-wall LCR loudspeaker
  • Magnetic grille
  • Cosmetic scrim
  • Installation Guide
  • Important Safety Instructions
  • Limited Warranty/Registration Card
  • MountingTemplate


Reasons to choose Monitor Audio CP-WT150 over Monitor Audio CP-WT140LCR

Woofer Size 5 inches vs 4 inches Larger woofer
Price per pair* 880USD vs 1080USD costs less (*prices may change depending on the seller, location and time)

Reasons to choose Monitor Audio CP-WT140LCR over Monitor Audio CP-WT150

Max Input Power 100 watts vs 50 watts Handle more power from your amplifier
Sensitivity 88 dB vs 85 dB Play louder with same amount of amplification power
Number of Woofers 2 vs 1 More woofers
Low Frequency Response 60 Hz vs 75 Hz Generates deeper bass
Height 299mm vs 326mm Easier to fit in smaller spaces
Base Surface Area 177cm2 vs 198cm2 Takes less floor space

Monitor Audio CP-WT150 vs Monitor Audio CP-WT140LCR Specs Table

Detailed comparison of specifications
General Monitor Audio CP-WT150 Monitor Audio CP-WT140LCR
Brand Monitor Audio Monitor Audio
Speaker Type Passive In-wall Speaker Passive In-wall Speaker
Power Range 20-50 watts 20-100 watts
Sensitivity 85 dB 88 dB
Impedance 6 ohms 6 ohms
Frequency Response 75-25kHz 60-25kHz
Drivers
Woofer Quantity 1 2
Woofer Size 5" 4"
Woofer Composition Poly Polymer
Woofer Surround Material Rubber Rubberr
Tweeter Size 1" 1"
Tweeter Type Hard-Dome Hard-Dome
Aimable Tweeter No No
Midrange Driver No No
Physical Specs
Height 326.0mm (12.8") 299.0mm (11.8")
Width 207.0mm (8.1") 183.0mm (7.2")
Depth 96.0mm (3.8") 97.0mm (3.8")
Enclosure In-wall In-wall
Moisture Resistancy No No
Connections
Biamp Inputs No No
Other
Parts Warranty Lifetime Lifetime
Labor Warranty Lifetime Lifetime

Verdict

Siblings in Monitor Audio's Controlled Performance series, so they share a family sound. It comes down to size, output and price.

AreaBetterWhy
BassBMonitor Audio CP-WT140LCR digs deeper - 60Hz against 75Hz.
Amplifier needsBMonitor Audio CP-WT140LCR is more sensitive (88dB vs 85dB), so it goes louder on the same amplifier.
HeadroomBMonitor Audio CP-WT140LCR takes more power (100W vs 50W) - more in hand in a big room.
SizedependsSimilar cabinet size - neither is easier to fit.
PriceAMonitor Audio CP-WT150 is cheaper - $880 against $1,080, about 19% less.

A Monitor Audio CP-WT150  B Monitor Audio CP-WT140LCR
depends neither is better in the abstract - it turns on your room, your system or how you will use them. Only specs published for both speakers are judged; anything missing on either side is left out rather than guessed.

Which should you choose?

Monitor Audio CP-WT140LCR leads across most of the measured areas for a fairly modest premium, which makes it the easier pick if the budget stretches. Monitor Audio CP-WT150 is the one to take if it does not. If a subwoofer is in your plans, the bass gap largely stops mattering - you would be crossing over above 75Hz anyway, which makes the cheaper Monitor Audio CP-WT150 much easier to justify. Match it to your room: we rate Monitor Audio CP-WT150 the better fit for near-field listening; elsewhere the two are rated the same.

And remember what a spec sheet cannot show: how each looks in your room and whether the finish suits it, what dealer support and warranty are like where you live, and how they actually sound to you. If you can hear them first - ideally with your own music - that will tell you more than any number above.


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