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  1. Home
  2. Passive In-wall Speakers
  3. JBL Studio 6 88LCR vs Monitor Audio CS140

JBL Studio 6 88LCR vs Monitor Audio CS140 Comparison

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JBL Studio 6 88LCR

Passive In-wall | 43-20kHz

JBL Studio 6 88LCR
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Monitor Audio CS140

Passive In-wall | 75-30kHz

Monitor Audio CS140
Check price atAmazon›
JBL Studio 6 88LCR JBL Studio 6 88LCR
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Monitor Audio CS140 Monitor Audio CS140
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JBL Studio 6 88LCR
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Monitor Audio CS140
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JBL Studio 6 88LCR vs Monitor Audio CS140 Speaker Comparison

In this review, we will be comparing Studio 6 88LCR and CS140, 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 CS140 first before getting into our more detailed comparison.

Key SpecsJBL Studio 6 88LCRMonitor Audio CS140
BrandJBL
United States · founded 1946
Monitor Audio
United Kingdom · founded 1972
Design2-way2-way
Tweeter1" Horn-Loaded1" Hard-Dome
Woofer2 x 8" PolyPlas4" Metal Matrix Polymer
Frequency response43-20kHz75-30kHz
Sensitivity96 dB85 dB
Impedance6 ohms6 ohms
Power range10-175 watts10-50 watts
Weight—1.18kg / 2.6lbs
Dimensions (H x W x D)20.4375" x 8.7500" x 3.7500"
520.0 x 223.0 x 96.0mm
5.8750" x 5.8750" x 3.9375"
150.0 x 150.0 x 101.0mm

What size room are the JBL Studio 6 88LCR and Monitor Audio CS140 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 CS140
Near-field Poor Good
Small Room Average Good
Mid-size Room Good Average
Large Room Average Poor
Very Large Room Poor No way

(* 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.


Drivers

Both Studio 6 88LCR and CS140 are 2-way speakers.

Tweeter - 1 inchWoofer - 8 inchWoofer - 8 inch
JBL Studio 6 88LCR
Tweeter - 1 inchWoofer - 4 inch
Monitor Audio CS140

TweeterWoofer

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 CS140
Driver Setup 2-way 2-way
Tweeter 1-inch 1-inch
Midrange - -
Woofer 2 x 8-inch 1 x 4-inch

Studio 6 88LCR features a 1" Horn-Loaded Tweeter and 2 x 8" PolyPlas Woofer. On the other hand, the CS140 features a 1" Hard-Dome Tweeter and 1 x 4" Metal Matrix Polymer Woofer.

Frequency Response

Studio 6 88LCR has a frequency range of 43-20kHz whereas CS140 has a frequency range of 75-30kHz. 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 CS140'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

Studio 6 88LCR
CS140
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 CS140 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 CS140's is at 85 dB. This 11 dB difference makes the JBL Studio 6 88LCR a more sensitive speaker compared to Monitor Audio CS140, hence will play louder with the same amount of watts.

Sensitivity

In-wall Speakers

Studio 6 88LCR
CS140
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 CS140 has a max power handling value of 50 watts RMS, 125 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 CS140
 

Input Type and Bi-Amping / Bi-Wiring

Studio 6 88LCR features Spring post type posts and CS140 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 CS140'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 CS140 has external dimensions of 150.0 x 150.0 x 101.0mm (5.8750-inch x 5.8750-inch x 3.9375-inch).

Monitor Audio CS140 is 73mm narrower and 370mm shorter than JBL Studio 6 88LCR but it is also 5mm deeper.

Below you can see the front view size comparison of JBL Studio 6 88LCR and Monitor Audio CS140 in scale.

JBL Studio 6 88LCR vs Monitor Audio CS140 Size Comparison - Front View
Comparison image of JBL Studio 6 88LCR and Monitor Audio CS140 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 CS140?

Here are the items that come with the CS140:
  • In-ceiling speaker
  • Grille
  • Paint skim
  • Installation Guide
  • Important Safety Instructions
  • Cutout Template


Reasons to choose JBL Studio 6 88LCR over Monitor Audio CS140

Max Input Power 175 watts vs 50 watts Handle more power from your amplifier
Sensitivity 96 dB vs 85 dB Play louder with same amount of amplification power
Woofer Size 8 inches vs 4 inches Larger woofer
Number of Woofers 2 vs 1 More woofers
Low Frequency Response 43 Hz vs 75 Hz Generates deeper bass

Reasons to choose Monitor Audio CS140 over JBL Studio 6 88LCR

High Frequency Response 30k Hz vs 20k Hz Generates higher frequency
Height 150mm vs 520mm Easier to fit in smaller spaces
Base Surface Area 151cm2 vs 214cm2 Takes less floor space
Price per pair* 440USD vs 1600USD costs less (*prices may change depending on the seller, location and time)

JBL Studio 6 88LCR vs Monitor Audio CS140 Specs Table

Detailed comparison of specifications
General JBL Studio 6 88LCR Monitor Audio CS140
Brand JBL Monitor Audio
Speaker Type Passive In-wall Speaker Passive In-wall Speaker
Power Range 10-175 watts 10-50 watts
Sensitivity 96 dB 85 dB
Impedance 6 ohms 6 ohms
Frequency Response 43-20kHz 75-30kHz
Drivers
Woofer Quantity 2 1
Woofer Size 8" 4"
Woofer Composition PolyPlas Metal Matrix Polymer
Woofer Surround Material Rubber Rubber
Tweeter Size 1" 1"
Tweeter Type Horn-Loaded Hard-Dome
Aimable Tweeter No Yes
Midrange Driver No No
Physical Specs
Height 520.0mm (20.5") 150.0mm (5.9")
Width 223.0mm (8.8") 150.0mm (5.9")
Depth 96.0mm (3.8") 101.0mm (4")
Weight n/a 1.18kg (2.6lbs)
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

These sit in different price classes - JBL Studio 6 88LCR costs roughly 3.6x what Monitor Audio CS140 does. Expect it to lead on paper; the question is whether the gap is audible enough in your room to be worth it.

AreaBetterWhy
BassAJBL Studio 6 88LCR digs deeper - 43Hz against 75Hz.
Amplifier needsAJBL Studio 6 88LCR is more sensitive (96dB vs 85dB), so it goes louder on the same amplifier.
HeadroomAJBL Studio 6 88LCR takes more power (175W vs 50W) - more in hand in a big room.
SizedependsMonitor Audio CS140 is easier to place; JBL Studio 6 88LCR is bigger, which usually goes with fuller bass. Your room decides.
PriceBMonitor Audio CS140 is cheaper - $440 against $1,600, about 73% less; arguably a different class.

A JBL Studio 6 88LCR  B Monitor Audio CS140
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?

The usual trade-off: JBL Studio 6 88LCR measures better, Monitor Audio CS140 costs about about 3.6x the price% less. Whether that gap is worth the money is the call only you can make - and in a normal room it is often smaller than the numbers suggest. 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 CS140 much easier to justify. Match it to your room: we rate JBL Studio 6 88LCR the better fit for a mid-size room and a large room, and Monitor Audio CS140 for near-field listening and a small room.

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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