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  1. Home
  2. JBL Speakers
  3. JBL Studio 6 66LCR vs JBL Studio 680

JBL Studio 6 66LCR vs JBL Studio 680 Comparison

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JBL Studio 6 66LCR

Passive In-wall | 45-20kHz

JBL Studio 6 66LCR
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JBL Studio 680

Passive Floor-standing | 38-40k Hz

JBL Studio 680
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JBL Studio 6 66LCR JBL Studio 6 66LCR
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JBL Studio 680 JBL Studio 680
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JBL Studio 6 66LCR
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JBL Studio 680
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JBL Studio 6 66LCR vs JBL Studio 680 Speaker Comparison

In this review, we will be comparing two different types of speakers by JBL. JBL Studio 6 66LCR is a In-wall speaker whereas the Studio 680 is a Floor-standing speaker.

Let's have a brief look at the main features of JBL Studio 6 66LCR and JBL Studio 680 first before getting into our more detailed comparison.

Key SpecsJBL Studio 6 66LCRJBL Studio 680
BrandJBL
United States · founded 1946
JBL
United States · founded 1946
Design2-way2-way
Tweeter1" Horn-Loaded1" compression driver with HDI (High Definition Imaging) waveguide
Woofer2 x 6.5" PolyPlas2 x 6.5" PolyPlas
Frequency response45-20kHz38-40k Hz
Sensitivity94 dB88 dB
Impedance6 ohms6 ohms
Power range10-150 wattsup to 200 watts
Weight—22.68kg / 49.9lbs
Dimensions (H x W x D)17.4375" x 7.1250" x 3.7500"
443.0 x 181.0 x 96.0mm
40-3/4" x 8-15/16" x 12-1/16"
1036.0 x 228.0 x 307.0mm

Studio 6 66LCR and Studio 680 are members of JBL's Studio series of speakers. Below you can find the loudspeakers from this series.

JBL Studio Series History
Model Body Frequency SensitivityImpedance Woofer
JBL Studio 630
  
Bookshelf 45-40k Hz 85 dB6Ω 1 x 6.25"
JBL Studio 620
  
Bookshelf 50-40k Hz 84 dB6Ω 1 x 5.25"
JBL Studio 680
Floor-standing 38-40k Hz 88 dB6Ω 2 x 6.5"
JBL Studio 690
  
Floor-standing 36-40k Hz 90 dB6Ω 2 x 8"
JBL Studio 6 88LCR
  
In-wall 43-20kHz 96 dB6Ω 2 x 8"
JBL Studio 6 Theater
  
In-wall 65-20kHz 96 dB6Ω 4 x 5.25"
JBL Studio 2 55IW
  
In-wall 40-20kHz 88 dB8Ω 2 x 5.25"
JBL Studio 6 66LCR
In-wall 45-20kHz 94 dB6Ω 2 x 6.5"
JBL Studio 6 Architectural 8IW
  
In-wall 43-20kHz 93 dB6Ω 1 x 8"
JBL Studio 2 8IW
  
In-wall 30-20kHz 88 dB8Ω 1 x 8"

What size room are the JBL Studio 6 66LCR and JBL Studio 680 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 66LCR JBL Studio 680
Near-field Poor Bad
Small Room Average Poor
Mid-size Room Good Average
Large Room Average Good
Very Large Room Poor Average

(* 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 66LCR and Studio 680 are 2-way speakers.

Tweeter - 1 inchWoofer - 6.5 inchWoofer - 6.5 inch
JBL Studio 6 66LCR
Tweeter - 1 inchWoofer - 6.5 inchWoofer - 6.5 inch
JBL Studio 680

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 66LCR JBL Studio 680
Driver Setup 2-way 2-way
Tweeter 1-inch 1-inch
Midrange - -
Woofer 2 x 6.5-inch 2 x 6.5-inch

Studio 6 66LCR features a 1" Horn-Loaded Tweeter and 2 x 6.5" PolyPlas Woofer. On the other hand, the Studio 680 features a 1" compression driver with HDI (High Definition Imaging) waveguide Tweeter and 2 x 6.5" PolyPlas Woofer.

Frequency Response

Studio 6 66LCR has a frequency range of 45-20kHz whereas Studio 680 has a frequency range of 38-40k Hz. With a minimum frequency of 38Hz, the Studio 680 can go significantly deeper on the low side and provide stronger bass compared to the Studio 6 66LCR's min frequency of 45Hz.

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 66LCR
Studio 680
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 66LCR and Studio 680 have the same Impedance of 6 ohms but where they differ is the sensitivity levels. Studio 6 66LCR sensitivity is rated at 94 dB and the Studio 680's is at 88 dB. This 6 dB difference makes the JBL Studio 6 66LCR a more sensitive speaker compared to JBL Studio 680, hence will play louder with the same amount of watts.

Sensitivity

In-wall Speakers

Studio 6 66LCR
Studio 680
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 680 can handle a max power of 200 watts RMS, whereas Studio 6 66LCR has a max power handling value of 150 watts RMS, 50 watts less than the Studio 680.

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 66LCR
 
JBL Studio 680
 

Input Type and Bi-Amping / Bi-Wiring

Studio 680 features Binding post posts which make bi-amping or bi-wiring possible. Studio 6 66LCR has a Spring posts which doesn't feature bi-amping/bi-wiring.

JBL Studio 680Binding post Terminals
JBL Studio 680's Binding post terminals allows Bi-amping or 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 66LCR's and JBL Studio 680's external dimensions. JBL Studio 6 66LCR has external dimensions of 443.0 x 181.0 x 96.0mm (17.4375-inch x 7.1250-inch x 3.7500-inch) whereas JBL Studio 680 has external dimensions of 1036.0 x 228.0 x 307.0mm (40-3/4-inch x 8-15/16-inch x 12-1/16-inch).

JBL Studio 680 is clearly the larger of the two speakers. Its body is 47mm wider, 593mm taller and 211mm deeper than JBL Studio 6 66LCR.

What's in the Box of JBL Studio 6 66LCR?

Here are the items that are included inside the box of Studio 6 66LCR:
  • In-wall loudspeaker
  • Grille
  • Cut-Out Template
  • Quick Start Guide

What's in the Box of JBL Studio 680?

Here are the items that come with the Studio 680:
  • Floorstanding loudspeaker
  • Grille
  • 4 Spike feet
  • 4 Washers
  • 4 Locking-collars
  • 4 Foot pads
  • 2 Jumper-straps (pre-installed)
  • Owners Manual
  • Warranty Card


Reasons to choose JBL Studio 6 66LCR over JBL Studio 680

Sensitivity 94 dB vs 88 dB Play louder with same amount of amplification power
Height 443mm vs 1036mm Easier to fit in smaller spaces
Base Surface Area 173cm2 vs 700cm2 Takes less floor space

Reasons to choose JBL Studio 680 over JBL Studio 6 66LCR

Max Input Power 200 watts vs 150 watts Handle more power from your amplifier
Low Frequency Response 38 Hz vs 45 Hz Generates deeper bass
High Frequency Response 40k Hz vs 20k Hz Generates higher frequency
Bi-Amping and Bi-Wiring Yes vs No Allows bi-amping and bi-wiring connections
Price per pair* 1198USD vs 1400USD costs less (*prices may change depending on the seller, location and time)

JBL Studio 6 66LCR vs JBL Studio 680 Specs Table

Detailed comparison of specifications
General JBL Studio 6 66LCR JBL Studio 680
Brand JBL JBL
Speaker Type Passive In-wall Speaker Floor-standing speaker
Power Range 10-150 watts up to 200 watts
Sensitivity 94 dB 88 dB
Impedance 6 ohms 6 ohms
Frequency Response 45-20kHz 38-40k Hz
Drivers
Woofer Quantity 2 2
Woofer Size 6.5" 6.5"
Woofer Composition PolyPlas PolyPlas
Woofer Surround Material Rubber Rubber
Tweeter Size 1" 1"
Tweeter Type Horn-Loaded compression driver with HDI (High Definition Imaging) waveguide
Aimable Tweeter No No
Midrange Driver No No
Firing Direction n/a rear
Physical Specs
Height 443.0mm (17.4") 1036.0mm (40.8")
Width 181.0mm (7.1") 228.0mm (9")
Depth 96.0mm (3.8") 307.0mm (12.1")
Weight n/a 22.68kg (49.9lbs)
Enclosure In-wall Bass Reflex
Finish n/a MDF/Wood-grain vinyl
Available Colors n/a Wood, Dark Wood
Grille n/a Yes
Moisture Resistancy No No
Connections
Biamp Inputs No Yes
Other
Parts Warranty 5 Years 5 Years
Labor Warranty 5 Years 5 Years

Verdict

Siblings in JBL's Studio series, so they share a family sound. It comes down to size, output and price.

AreaBetterWhy
BassBJBL Studio 680 digs deeper - 38Hz against 45Hz. A subwoofer would even that out.
Amplifier needsAJBL Studio 6 66LCR is more sensitive (94dB vs 88dB), so it goes louder on the same amplifier.
HeadroomBJBL Studio 680 takes more power (200W vs 150W) - more in hand in a big room.
SizedependsJBL Studio 6 66LCR is easier to place; JBL Studio 680 is bigger, which usually goes with fuller bass. Your room decides.
TypedependsA Passive In-wall against a Passive Floor-standing - a different job rather than a better one.
CabinetdependsIn-wall vs Ported.
ExpandabilityBJBL Studio 680: bi-amping.
PriceBJBL Studio 680 is cheaper - $1,198 against $1,400, about 14% less.

A JBL Studio 6 66LCR  B JBL Studio 680
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 680 is the easier recommendation: it leads on most of the measured areas and costs less. Take JBL Studio 6 66LCR 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 45Hz anyway, so judge these on the other rows instead. Match it to your room: we rate JBL Studio 6 66LCR the better fit for a small room and a mid-size room, and JBL Studio 680 for a large room and a very large 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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