In this review, we will be comparing Studio 680 and Kendall, two Passive Floor-standing speakers from JBL and KLH.
Let's have a brief look at the main features
of JBL Studio 680 and KLH Kendall first before getting into our more
detailed comparison.
| Key Specs | JBL Studio 680 | KLH Kendall |
|---|
| Brand | JBL
United States · founded 1946 | KLH
United States · founded 1957 |
|---|
| Design | 2-way | 3-way |
|---|
| Tweeter | 1" compression driver with HDI (High Definition Imaging) waveguide | 1" |
|---|
| Midrange | — | 5.25" |
|---|
| Woofer | 2 x 6.5" PolyPlas | 2 x 6.5" Woven Kevlar |
|---|
| Frequency response | 38-40k Hz | 25-23k Hz |
|---|
| Sensitivity | 88 dB | 96 dB |
|---|
| Impedance | 6 ohms | 8 ohms |
|---|
| Power range | up to 200 watts | up to 250 watts |
|---|
| Weight | 22.68kg / 49.9lbs | 22.14kg / 48.7lbs |
|---|
| Dimensions (H x W x D) | 40-3/4" x 8-15/16" x 12-1/16"
1036.0 x 228.0 x 307.0mm | 40-3/16" x 8-5/16" x 14-15/16"
1021.0 x 212.0 x 380.0mm |
|---|
The sections below take each area in turn: drivers, frequency response, physical size and what you get in the box.
Drivers
One of the fundamental differences between these two speakers is that Studio 680 is a 2-way design whereas the Kendall 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.
JBL Studio 680KLH Kendall
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 680 |
KLH Kendall |
|
Driver Setup
|
2-way
|
3-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
- |
1 x 5.25-inch |
|
Woofer
|
2 x 6.5-inch
|
2 x 6.5-inch
|
Studio 680 features a 1" compression driver with HDI (High Definition Imaging) waveguide Tweeter and 2 x 6.5" PolyPlas Woofer. On the other hand, the Kendall features a 1" anodized aluminum Tweeter, a 5.25" Midrange and 2 x 6.5" Woven Kevlar Woofer.
Frequency Response
Studio 680 has a frequency range of 38-40k Hz whereas Kendall has a frequency range of 25-23k Hz. With a minimum frequency of 25Hz, the Kendall can go significantly deeper on the low side and provide stronger bass compared to the Studio 680's min frequency of 38Hz.
The graph below depicts how these two speakers compare with the max, min and average Low Frequency values of other speakers in the Floor-standing class in our database.
Low Frequency
Floor-standing 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 680 is a 6 ohms speaker compared to the Kendall which has a nominal impedance of 8 ohms.
These two speakers also have different sensitivity levels. Studio 680 sensitivity is rated at 88 dB and the Kendall's is rated at 96 dB. This 8 dB difference makes the KLH Kendall a more sensitive speaker compared to JBL Studio 680, hence will play louder with the same amount of watts.
Sensitivity
Floor-standing 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.
Kendall can handle a max power of 250 watts RMS, whereas Studio 680 has a max power handling value of 200 watts RMS, 50 watts less than the Kendall.
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
Both Studio 680 and Kendall features dual binding post speaker terminals for bi-amping or bi-wiring.
JBL Studio 680's Binding post terminals allows Bi-amping or bi-wiring
KLH Kendall'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 680's and KLH Kendall's external dimensions. 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) whereas KLH Kendall has external dimensions of 1021.0 x 212.0 x 380.0mm (40-3/16 x 8-5/16 x 14-15/16inch).
KLH Kendall is 16mm narrower and 15mm shorter than JBL Studio 680 but it is also 73mm deeper.
Size, drawn to scale
Both speakers and both views share one scale, so everything here is directly comparable. Hover a box for its dimensions.
One scale for both, standing on the same surface and pushed back to the same wall, so the deeper one visibly sticks out further.
KLH Kendall needs about 15% more floor or shelf area. KLH Kendall is 73mm deeper, so it stands that much further out from the wall. JBL Studio 680 is 15mm taller.
Base Surface Area Comparison
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited.
The base surface area of the JBL Studio 680 is approximately 700.0cm2 / 108.5inch2 and base area of the KLH Kendall is approximately 805.6cm2 / 124.9inch2. The Studio 680 requires 13% less surface area than the Kendall which gives it a small advantage on placement in tight spaces.
Weight Comparison The weight of a loudspeaker can become an important factor if you need to move and reposition the unit often. Weight of a speaker can also "sometimes" be an indicator of the rigidity of the enclosure and the quality of the internal components used. The JBL Studio 680 weighs 22.68kg / 49.9lbs and the KLH Kendall weighs 22.14kg / 48.7lbs. This makes the Studio 680 2% heavier than the Kendall.
Here is a comparison of how Studio 680 and Kendall's weights compare with the average, max and min weights in Passive Floor-standing class.
Weight
All Floor-standing Speakers
What's in the Box of JBL Studio 680?
Here are the items that are included inside the box of 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
What's in the Box of KLH Kendall?
Here are the items that come with the Kendall:
- Floorstanding loudspeaker
- Grille
- Foam port
- 4 Rubber feet
- 4 Spike feet (with nuts)
- 4 Protective discs
- Manual
 High Frequency Response |
40k Hz
vs
23k Hz
|
Generates higher frequency |
 Base Surface Area |
700cm2
vs
805cm2
|
Takes less floor space |
 Price per pair* |
1198USD
vs
1500USD
|
costs less (*prices may change depending on the seller, location and time) |
 Max Input Power |
250 watts
vs
200 watts
|
Handle more power from your amplifier |
 Driver Setup |
3-way
vs
2-way
|
Have a dedicated mid-range driver |
 Sensitivity |
96 dB
vs
88 dB
|
Play louder with same amount of amplification power |
 Nominal Impedance |
8 ohms
vs
6 ohms
|
Less selective with amplifiers |
 Low Frequency Response |
25 Hz
vs
38 Hz
|
Generates deeper bass |
 Height |
1021mm
vs
1036mm
|
Easier to fit in smaller spaces |
| General |
JBL Studio 680 |
KLH Kendall |
| Brand |
JBL |
KLH |
| Speaker Type |
Floor-standing speaker |
Floor-standing speaker |
| Power Range |
up to 200 watts |
up to 250 watts |
| Sensitivity |
88 dB |
96 dB |
| Impedance |
6 ohms |
8 ohms |
| Frequency Response |
38-40k Hz |
25-23k Hz |
Drivers |
|
|
| Woofer Quantity |
2 |
2 |
| Woofer Size |
6.5" |
6.5" |
| Woofer Composition |
PolyPlas |
Woven Kevlar |
| Woofer Surround Material |
Rubber |
Butyl Rubber |
| Tweeter Size |
1" |
1" |
| Tweeter Type |
compression driver with HDI (High Definition Imaging) waveguide |
n/a |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
5.25" |
| Firing Direction |
rear |
n/a |
Physical Specs |
|
|
| Height |
1036.0mm (40.8") |
1021.0mm (40.2") |
| Width |
228.0mm (9") |
212.0mm (8.3") |
| Depth |
307.0mm (12.1") |
380.0mm (15") |
| Weight |
22.68kg (49.9lbs) |
22.14kg (48.7lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Finish |
MDF/Wood-grain vinyl |
MDF/Wood Veneer |
| Available Colors |
Wood, Dark Wood |
Black |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Biamp Inputs |
Yes |
Yes |
Other |
|
|
| Parts Warranty |
5 Years |
10 Years |
| Labor Warranty |
5 Years |
10 Years |
No single best speaker here - they are built to different priorities, and the right one depends on your room, your amplifier and what you listen to.
| Area | Better | Why |
|---|
| Bass | B | KLH Kendall digs deeper - 25Hz against 38Hz. |
| Amplifier needs | B | KLH Kendall is more sensitive (96dB vs 88dB), so it goes louder on the same amplifier. |
| Amplifier match | B | KLH Kendall is the easier load at 8 ohms. |
| Headroom | B | KLH Kendall takes more power (250W vs 200W) - more in hand in a big room. |
| Size | depends | Similar cabinet size - neither is easier to fit. |
| Expandability | depends | JBL Studio 680: bi-amping; KLH Kendall: bi-amping. JBL Studio 680 sits in a wider range (15 models), so a matched surround system is easier later. |
| Price | A | JBL Studio 680 is cheaper - $1,198 against $1,500, about 20% less. |
A JBL Studio 680 B KLH Kendall
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?
KLH Kendall leads across most of the measured areas for a fairly modest premium, which makes it the easier pick if the budget stretches. JBL Studio 680 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 38Hz anyway, which makes the cheaper JBL Studio 680 much easier to justify. If your amplifier is modest, vintage or valve-based, KLH Kendall 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.