In this review, we will be comparing Model Three and L100 Classic, two Passive Bookshelf speakers from KLH and JBL.
Let's have a brief look at the main features
of KLH Model Three and JBL L100 Classic first before getting into our more
detailed comparison.
| Key Specs | KLH Model Three | JBL L100 Classic |
|---|
| Brand | KLH
United States · founded 1957 | JBL
United States · founded 1946 |
|---|
| Design | 2-way | 3-way |
|---|
| Tweeter | 1" | 1" Dome |
|---|
| Midrange | — | 5.25" |
|---|
| Woofer | 8" Pulp-Paper Cone | 12" Pulp |
|---|
| Frequency response | 46-20k Hz | 40-40k Hz |
|---|
| Sensitivity | 88 dB | 90 dB |
|---|
| Impedance | 6 ohms | 4 ohms |
|---|
| Power range | 30-150 watts | 25-200 watts |
|---|
| Weight | 13.20kg / 29lbs | 26.70kg / 58.7lbs |
|---|
| Dimensions (H x W x D) | 19.0" x 12.25" x 10.5"
482.0 x 311.0 x 267.0mm | 25.0" x 15.3" x 14.6"
636.5 x 389.6 x 371.5mm |
|---|
What size room are the KLH Model Three and JBL L100 Classic 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* |
KLH Model Three |
JBL L100 Classic |
| 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
One of the fundamental differences between these two speakers is that Model Three is a 2-way design whereas the L100 Classic 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.
KLH Model ThreeJBL L100 Classic
TweeterMidrangeWoofer
Front view, drawn to scale - cabinets and drivers share one scale, so sizes are directly comparable. Hover a driver for its size.
| Driver |
KLH Model Three |
JBL L100 Classic |
|
Driver Setup
|
2-way
|
3-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
- |
1 x 5.25-inch |
|
Woofer
|
1 x 8-inch
|
1 x 12-inch
|
Model Three features a 1" Aluminum Tweeter and 1 x 8" Pulp-Paper Cone Woofer with a Crossover frequency at 1600Hz. On the other hand, the L100 Classic features a 1" Titanium Dome Tweeter, a 5.25" Midrange and 1 x 12" Pulp Woofer with a Crossover frequency at 450Hz and 3500Hz.
Frequency Response
Model Three has a frequency range of 46-20k Hz whereas L100 Classic has a frequency range of 40-40k Hz. With a minimum frequency of 40Hz, the L100 Classic can go significantly deeper on the low side and provide stronger bass compared to the Model Three's min frequency of 46Hz.
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
Model Three is a 6 ohms speaker compared to the L100 Classic which has a nominal impedance of 4 ohms. Lower impedance speakers, especially the ones that are rated at 4 ohms may put more pressure on the amplifier unit especially when played at high volume levels, so make sure the amp you pair with the L100 Classic can provide this impedance level.
These two speakers also have different sensitivity levels. Model Three sensitivity is rated at 88 dB and the L100 Classic's is rated at 90 dB. This 2 dB difference makes the JBL L100 Classic a more sensitive speaker compared to KLH Model Three, 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.
L100 Classic can handle a max power of 200 watts RMS, whereas Model Three has a max power handling value of 150 watts RMS, 50 watts less than the L100 Classic.
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
Model Three features Five-way gold-plated binding posts type posts and L100 Classic has a Five-way gold-plated binding posts type posts. None of these speakers feature bi-amping/bi-wiring.
KLH Model Three's Binding post terminals
JBL L100 Classic's Five-way gold-plated binding posts terminals
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 KLH Model Three's and JBL L100 Classic's external dimensions. KLH Model Three has external dimensions of 482.0 x 311.0 x 267.0mm (19.0 x 12.25 x 10.5inch) whereas JBL L100 Classic has external dimensions of 636.5 x 389.6 x 371.5mm (25.0 x 15.3 x 14.6inch).
JBL L100 Classic is clearly the larger of the two speakers. Its body is 78.6mm wider, 154.5mm taller and 104.5mm deeper than KLH Model Three.
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 KLH Model Three is approximately 830.4cm2 / 128.7inch2 and base area of the JBL L100 Classic is approximately 1447.4cm2 / 224.3inch2. The Model Three requires 43% less surface area than the L100 Classic 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 KLH Model Three weighs 13.20kg / 29lbs and the JBL L100 Classic weighs 26.70kg / 58.7lbs. This makes the L100 Classic 102% heavier than the Model Three.
Here is a comparison of how Model Three and L100 Classic's weights compare with the average, max and min weights in Passive Bookshelf class.
Weight
All Bookshelf Speakers
What's in the Box of KLH Model Three?
Here are the items that are included inside the box of Model Three:
- Floorstanding loudspeaker
- Riser base
- Grille
- Owners Manual
What's in the Box of JBL L100 Classic?
Here are the items that come with the L100 Classic:
- Bookshelf loudspeaker
- Grille
- Owner's Manual
 Nominal Impedance |
6 ohms
vs
4 ohms
|
Less selective with amplifiers |
 Height |
482mm
vs
636mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
830cm2
vs
1447cm2
|
Takes less floor space |
 Price per pair* |
2000USD
vs
4400USD
|
costs less (*prices may change depending on the seller, location and time) |
 Max Input Power |
200 watts
vs
150 watts
|
Handle more power from your amplifier |
 Driver Setup |
3-way
vs
2-way
|
Have a dedicated mid-range driver |
 Sensitivity |
90 dB
vs
88 dB
|
Play louder with same amount of amplification power |
 Woofer Size |
12 inches
vs
8 inches
|
Larger woofer |
|
Low Frequency Response |
40 Hz
vs
46 Hz
|
Generates deeper bass |
 High Frequency Response |
40k Hz
vs
20k Hz
|
Generates higher frequency |
| General |
KLH Model Three |
JBL L100 Classic |
| Brand |
KLH |
JBL |
| Speaker Type |
Bookshelf speakers |
Bookshelf speakers |
| Power Range |
30-150 watts |
25-200 watts |
| Sensitivity |
88 dB |
90 dB |
| Impedance |
6 ohms |
4 ohms |
| Impedance |
3.7 ohms |
n/a |
| Frequency Response |
46-20k Hz |
40-40k Hz |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
8" |
12" |
| Woofer Composition |
Pulp-Paper Cone |
Pulp |
| Woofer Surround Material |
Rubber |
Rubber |
| Tweeter Size |
1" |
1" |
| Tweeter Type |
n/a |
Dome |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
5.25" |
| Crossover Frequency |
1600Hz |
450Hz and 3500Hz |
| Firing Direction |
n/a |
front |
Physical Specs |
|
|
| Height |
482.0mm (19") |
636.5mm (25.1") |
| Width |
311.0mm (12.2") |
389.6mm (15.3") |
| Depth |
267.0mm (10.5") |
371.5mm (14.6") |
| Weight |
13.20kg (29lbs) |
26.70kg (58.7lbs) |
| Enclosure |
Acoustic Suspension |
Bass Reflex |
| Finish |
MDF/Wood Veneer |
Genuine walnut veneer |
| Available Colors |
English Walnut, West African Mahogany |
Walnut |
| Mounting Bracket |
No |
No |
| Recommended Stand Height |
n/a |
18" |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Biamp Inputs |
No |
No |
Other |
|
|
| Parts Warranty |
10 Years |
5 Years |
| Labor Warranty |
10 Years |
5 Years |
These sit in different price classes - JBL L100 Classic costs roughly 2.2x what KLH Model Three does. Expect it to lead on paper; the question is whether the gap is audible enough in your room to be worth it.
| Area | Better | Why |
|---|
| Bass | B | JBL L100 Classic digs deeper - 40Hz against 46Hz. A subwoofer would even that out. |
| Amplifier needs | B | JBL L100 Classic is more sensitive (90dB vs 88dB), so it goes louder on the same amplifier. |
| Amplifier match | A | KLH Model Three is the easier load at 6 ohms; the other is 4 ohms and wants an amplifier rated for it. |
| Headroom | B | JBL L100 Classic takes more power (200W vs 150W) - more in hand in a big room. |
| Size | depends | KLH Model Three is easier to place; JBL L100 Classic is bigger, which usually goes with fuller bass. Your room decides. |
| Cabinet | depends | Sealed vs Ported. Sealed is tighter and happier near a wall; ported digs lower but wants space behind it. |
| Price | A | KLH Model Three is cheaper - $2,000 against $4,400, about 55% less; arguably a different class. |
A KLH Model Three B JBL L100 Classic
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 L100 Classic measures better, KLH Model Three costs about about 120% more% 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 46Hz anyway, which makes the cheaper KLH Model Three much easier to justify. In a large or open-plan room, JBL L100 Classic has the cabinet volume to fill it more easily; in a small room, near a wall or at desk distance, KLH Model Three is the easier speaker to get right.
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.