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  1. Home
  2. Passive In-wall Speakers
  3. JBL Studio 6 88LCR vs Monitor Audio CP-WT380IDC

JBL Studio 6 88LCR vs Monitor Audio CP-WT380IDC Comparison

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JBL Studio 6 88LCR

Passive In-wall | 43-20kHz

JBL Studio 6 88LCR
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Monitor Audio CP-WT380IDC

Passive In-wall | 50-30kHz

Monitor Audio CP-WT380IDC
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JBL Studio 6 88LCR JBL Studio 6 88LCR
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Monitor Audio CP-WT380IDC Monitor Audio CP-WT3...
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JBL Studio 6 88LCR
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Monitor Audio CP-WT3...
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JBL Studio 6 88LCR vs Monitor Audio CP-WT380IDC Speaker Comparison

In this review, we will be comparing Studio 6 88LCR and CP-WT380IDC, two Passive In-wall speakers from JBL and Monitor Audio.

Let's have a brief look at the main features of JBL Studio 6 88LCR and Monitor Audio CP-WT380IDC first before getting into our more detailed comparison.

Key SpecsJBL Studio 6 88LCRMonitor Audio CP-WT380IDC
BrandJBL
United States · founded 1946
Monitor Audio
United Kingdom · founded 1972
Design2-way3-way
Tweeter1" Horn-Loaded1" Hard-Dome
Midrange—4"
Woofer2 x 8" PolyPlas8" C-CAM
Frequency response43-20kHz50-30kHz
Sensitivity96 dB89 dB
Impedance6 ohms6 ohms
Power range10-175 watts30-120 watts
Weight—5.67kg / 12.5lbs
Dimensions (H x W x D)20.4375" x 8.7500" x 3.7500"
520.0 x 223.0 x 96.0mm
17.1875" x 10.5625" x 3.8750"
437.0 x 269.0 x 99.0mm

What size room are the JBL Studio 6 88LCR 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* JBL Studio 6 88LCR 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.)

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

One of the fundamental differences between these two speakers is that Studio 6 88LCR 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.

Tweeter - 1 inchWoofer - 8 inchWoofer - 8 inch
JBL Studio 6 88LCR
Tweeter - 1 inchMidrange - 4 inchWoofer - 8 inch
Monitor Audio CP-WT380IDC

TweeterMidrangeWoofer

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

Driver JBL Studio 6 88LCR Monitor Audio CP-WT380IDC
Driver Setup 2-way 3-way
Tweeter 1-inch 1-inch
Midrange - 1 x 4-inch
Woofer 2 x 8-inch 1 x 8-inch

Studio 6 88LCR features a 1" Horn-Loaded Tweeter and 2 x 8" PolyPlas 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

Studio 6 88LCR has a frequency range of 43-20kHz whereas CP-WT380IDC has a frequency range of 50-30kHz. With a minimum frequency of 43Hz, the Studio 6 88LCR can go significantly deeper on the low side and provide stronger bass compared to the CP-WT380IDC's min frequency of 50Hz.

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

Studio 6 88LCR
CP-WT380IDC
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

Studio 6 88LCR and CP-WT380IDC have the same Impedance of 6 ohms but where they differ is the sensitivity levels. Studio 6 88LCR sensitivity is rated at 96 dB and the CP-WT380IDC's is at 89 dB. This 7 dB difference makes the JBL Studio 6 88LCR a more sensitive speaker compared to Monitor Audio CP-WT380IDC, hence will play louder with the same amount of watts.

Sensitivity

In-wall Speakers

Studio 6 88LCR
CP-WT380IDC
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.

Studio 6 88LCR can handle a max power of 175 watts RMS, whereas CP-WT380IDC has a max power handling value of 120 watts RMS, 55 watts less than the Studio 6 88LCR.

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.

JBL Studio 6 88LCR
 
Monitor Audio CP-WT380IDC
 

Input Type and Bi-Amping / Bi-Wiring

Studio 6 88LCR 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

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 JBL Studio 6 88LCR's and Monitor Audio CP-WT380IDC's external dimensions. JBL Studio 6 88LCR has external dimensions of 520.0 x 223.0 x 96.0mm (20.4375-inch x 8.7500-inch x 3.7500-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).

JBL Studio 6 88LCR is 46mm narrower and 3mm less deeper than Monitor Audio CP-WT380IDC but it is also 83mm taller.

Below you can see the front view size comparison of JBL Studio 6 88LCR and Monitor Audio CP-WT380IDC in scale.

JBL Studio 6 88LCR vs Monitor Audio CP-WT380IDC Size Comparison - Front View
Comparison image of JBL Studio 6 88LCR and Monitor Audio CP-WT380IDC Size and External Dimensions

What's in the Box of JBL Studio 6 88LCR?

Here are the items that are included inside the box of Studio 6 88LCR:
  • In-wall loudspeaker
  • Grille
  • Cut-Out Template
  • Quick Start Guide

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 JBL Studio 6 88LCR over Monitor Audio CP-WT380IDC

Max Input Power 175 watts vs 120 watts Handle more power from your amplifier
Sensitivity 96 dB vs 89 dB Play louder with same amount of amplification power
Number of Woofers 2 vs 1 More woofers
Low Frequency Response 43 Hz vs 50 Hz Generates deeper bass
Base Surface Area 214cm2 vs 266cm2 Takes less floor space
Price per pair* 1600USD vs 2350USD costs less (*prices may change depending on the seller, location and time)

Reasons to choose Monitor Audio CP-WT380IDC over JBL Studio 6 88LCR

Driver Setup 3-way vs 2-way Have a dedicated mid-range driver
High Frequency Response 30k Hz vs 20k Hz Generates higher frequency
Height 437mm vs 520mm Easier to fit in smaller spaces

JBL Studio 6 88LCR vs Monitor Audio CP-WT380IDC Specs Table

Detailed comparison of specifications
General JBL Studio 6 88LCR Monitor Audio CP-WT380IDC
Brand JBL Monitor Audio
Speaker Type Passive In-wall Speaker Passive In-wall Speaker
Power Range 10-175 watts 30-120 watts
Sensitivity 96 dB 89 dB
Impedance 6 ohms 6 ohms
Frequency Response 43-20kHz 50-30kHz
Drivers
Woofer Quantity 2 1
Woofer Size 8" 8"
Woofer Composition PolyPlas C-CAM
Woofer Surround Material Rubber Rubber
Tweeter Size 1" 1"
Tweeter Type Horn-Loaded Hard-Dome
Aimable Tweeter No No
Midrange Driver No 4"
Physical Specs
Height 520.0mm (20.5") 437.0mm (17.2")
Width 223.0mm (8.8") 269.0mm (10.6")
Depth 96.0mm (3.8") 99.0mm (3.9")
Weight n/a 5.67kg (12.5lbs)
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

Verdict

A generation apart: JBL Studio 6 88LCR is the newer design, against a 2017 model. Newer is not automatically better, but the older one is more likely to be discounted or near run-out.

AreaBetterWhy
BassAJBL Studio 6 88LCR digs deeper - 43Hz against 50Hz. A subwoofer would even that out.
Amplifier needsAJBL Studio 6 88LCR is more sensitive (96dB vs 89dB), so it goes louder on the same amplifier.
HeadroomAJBL Studio 6 88LCR takes more power (175W vs 120W) - more in hand in a big room.
SizedependsSimilar cabinet size - neither is easier to fit.
ExpandabilitydependsNeither adds bi-amping, a sub output or height drivers. JBL Studio 6 88LCR sits in a wider range (15 models), so a matched surround system is easier later.
PriceAJBL Studio 6 88LCR is cheaper - $1,600 against $2,350, about 32% less.

A JBL Studio 6 88LCR  B Monitor Audio CP-WT380IDC
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?

JBL Studio 6 88LCR is the easier recommendation: it leads on most of the measured areas and costs less. Take Monitor Audio CP-WT380IDC if its size, looks or fit in your room suit you better. If a subwoofer is in your plans, the bass gap largely stops mattering - you would be crossing over above 50Hz anyway, so judge these on the other rows instead. If your amplifier is modest, vintage or valve-based, JBL Studio 6 88LCR is the safer partner - the other will want more current or more watts to sound its best.

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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