In this review, we will be comparing two different types of speakers by JBL. JBL Studio 630 is a Bookshelf speaker whereas the Studio 6 66LCR is a In-wall speaker.
Let's have a brief look at the main features
of JBL Studio 630 and JBL Studio 6 66LCR first before getting into our more
detailed comparison.
| Key Specs | JBL Studio 630 | JBL Studio 6 66LCR |
|---|
| Brand | JBL
United States · founded 1946 | JBL
United States · founded 1946 |
|---|
| Design | 2-way | 2-way |
|---|
| Tweeter | 1" High Frequency Compression | 1" Horn-Loaded |
|---|
| Woofer | 6.25" PolyPlas | 2 x 6.5" PolyPlas |
|---|
| Frequency response | 45-40k Hz | 45-20kHz |
|---|
| Sensitivity | 85 dB | 94 dB |
|---|
| Impedance | 6 ohms | 6 ohms |
|---|
| Power range | up to 150 watts | 10-150 watts |
|---|
| Weight | 9.02kg / 19.8lbs | — |
|---|
| Dimensions (H x W x D) | 14.6" x 9-1/16" x 11-1/16"
372.0 x 230.0 x 280.0mm | 17.4375" x 7.1250" x 3.7500"
443.0 x 181.0 x 96.0mm |
|---|
Studio 630 and Studio 6 66LCR are members of JBL's Studio series of speakers. Below you can find the loudspeakers from this series.
JBL Studio Series
History
What size room are the JBL Studio 630 and JBL Studio 6 66LCR 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 630 |
JBL Studio 6 66LCR |
| 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.
Drivers
Both Studio 630 and Studio 6 66LCR are 2-way speakers.
JBL Studio 630JBL Studio 6 66LCR
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 630 |
JBL Studio 6 66LCR |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
1 x 6.25-inch
|
2 x 6.5-inch
|
Studio 630 features a 1" High Frequency Compression Tweeter and 1 x 6.25" PolyPlas Woofer. On the other hand, the Studio 6 66LCR features a 1" Horn-Loaded Tweeter and 2 x 6.5" PolyPlas Woofer.
Frequency Response
Studio 630 has a frequency range of 45-40k Hz whereas Studio 6 66LCR has a frequency range of 45-20kHz.
The graph below depicts how these two speakers compare with the max, min and average Low Frequency values of other speakers in the Bookshelf class in our database.
Low Frequency
Bookshelf Speakers
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 630 and Studio 6 66LCR have the same Impedance of 6 ohms but where they differ is the sensitivity levels. Studio 630 sensitivity is rated at 85 dB and the Studio 6 66LCR's is at 94 dB. This 9 dB difference makes the JBL Studio 6 66LCR a more sensitive speaker compared to JBL Studio 630, hence will play louder with the same amount of watts.
Sensitivity
Bookshelf Speakers
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.
Both handle the same maximum of 150 watts RMS, though Studio 630 is rated up to 150 watts and Studio 6 66LCR 10-150 watts.
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.
Input Type and Bi-Amping / Bi-Wiring
Studio 630 features Spring posts type posts and Studio 6 66LCR has a Spring posts 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 630's and JBL Studio 6 66LCR's external dimensions. JBL Studio 630 has external dimensions of 372.0 x 230.0 x 280.0mm (14.6 x 9-1/16inch x 11-1/16inch) whereas 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).
JBL Studio 6 66LCR is 49mm narrower and 184mm less deeper than JBL Studio 630 but it is also 71mm taller.
Below you can see the front view size comparison of JBL Studio 630 and JBL Studio 6 66LCR in scale.
Comparison image of JBL Studio 630 and JBL Studio 6 66LCR Size and External Dimensions
What's in the Box of JBL Studio 630?
Here are the items that are included inside the box of Studio 630:
- 2 x JBL Studio 630 Bookshelf Loudspeaker
- 1 x Owner’s Manual
- 1 x Warranty Card
- 8 x Feet Pads
What's in the Box of JBL Studio 6 66LCR?
Here are the items that come with the Studio 6 66LCR:
- In-wall loudspeaker
- Grille
- Cut-Out Template
- Quick Start Guide