In this review, we will be comparing AE120 MII and Kendall, two Passive Floor-standing speakers from Acoustic Energy and KLH.
Let's have a brief look at the main features
of AE120 Mark II and KLH Kendall first before getting into our more
detailed comparison.
| Key Specs | AE120 Mark II | KLH Kendall |
|---|
| Brand | Acoustic Energy
United Kingdom · founded 1987 | KLH
United States · founded 1957 |
|---|
| Design | 3-way | 3-way |
|---|
| Tweeter | 1" dome with waveguide | 1" |
|---|
| Midrange | 5.2" | 5.25" |
|---|
| Woofer | 2 x 5.2" paper cone | 2 x 6.5" Woven Kevlar |
|---|
| Frequency response | 39Hz - 26kHz | 25-23k Hz |
|---|
| Sensitivity | 90 dB | 96 dB |
|---|
| Impedance | 6 ohms | 8 ohms |
|---|
| Power range | up to 200 watts | up to 250 watts |
|---|
| Weight | 19.00kg / 41.8lbs | 22.14kg / 48.7lbs |
|---|
| Dimensions (H x W x D) | 37.4" x 6.5" x 9.8"
950.0 x 165.0 x 250.0mm | 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
Both AE120 MII and Kendall are 3-way speakers.
AE120 Mark IIKLH 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 |
AE120 Mark II |
KLH Kendall |
|
Driver Setup
|
3-way
|
3-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
1 x 5.2-inch |
1 x 5.25-inch |
|
Woofer
|
2 x 5.2-inch
|
2 x 6.5-inch
|
AE120 MII features a 1" fabric dome with waveguide Tweeter, a 5.2" Midrange and 2 x 5.2" paper cone Woofer with a Crossover frequency at 300Hz and 2.7kHz. 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
AE120 MII has a frequency range of 39Hz - 26kHz 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 AE120 MII's min frequency of 39Hz.
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
AE120 MII 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. AE120 MII sensitivity is rated at 90 dB and the Kendall's is rated at 96 dB. This 6 dB difference makes the KLH Kendall a more sensitive speaker compared to AE120 Mark II, 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 AE120 MII 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.
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 AE120 Mark II's and KLH Kendall's external dimensions. AE120 Mark II has external dimensions of 950.0 x 165.0 x 250.0mm (37.4 x 6.5 x 9.8inch) 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 clearly the larger of the two speakers. Its body is 47mm wider, 71mm taller and 130mm deeper than AE120 Mark II.
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 95% more floor or shelf area. KLH Kendall is 130mm deeper, so it stands that much further out from the wall. KLH Kendall is 71mm 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 AE120 Mark II is approximately 412.5cm2 / 63.9inch2 and base area of the KLH Kendall is approximately 805.6cm2 / 124.9inch2. The AE120 MII requires 49% 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 AE120 Mark II weighs 19.00kg / 41.8lbs and the KLH Kendall weighs 22.14kg / 48.7lbs. This makes the Kendall 17% heavier than the AE120 MII.
Here is a comparison of how AE120 MII 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 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 |
26k Hz
vs
23k Hz
|
Generates higher frequency |
 Height |
950mm
vs
1021mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
412cm2
vs
805cm2
|
Takes less floor space |
 Price per pair* |
1499USD
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 |
 Sensitivity |
96 dB
vs
90 dB
|
Play louder with same amount of amplification power |
 Nominal Impedance |
8 ohms
vs
6 ohms
|
Less selective with amplifiers |
 Woofer Size |
6.5 inches
vs
5.2 inches
|
Larger woofer |
|
Low Frequency Response |
25 Hz
vs
39 Hz
|
Generates deeper bass |
| General |
Acoustic Energy AE120 Mark II |
KLH Kendall |
| Brand |
Acoustic Energy |
KLH |
| Speaker Type |
Floor-standing speaker |
Floor-standing speaker |
| Power Range |
up to 200 watts |
up to 250 watts |
| Sensitivity |
90 dB |
96 dB |
| Impedance |
6 ohms |
8 ohms |
| Frequency Response |
39Hz - 26kHz |
25-23k Hz |
Drivers |
|
|
| Woofer Quantity |
2 |
2 |
| Woofer Size |
5.2" |
6.5" |
| Woofer Composition |
paper cone |
Woven Kevlar |
| Woofer Surround Material |
n/a |
Butyl Rubber |
| Tweeter Size |
1" |
1" |
| Tweeter Type |
dome with waveguide |
n/a |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
5.2" |
5.25" |
| Crossover Frequency |
300Hz and 2.7kHz |
n/a |
| Firing Direction |
rear |
n/a |
Physical Specs |
|
|
| Height |
950.0mm (37.4") |
1021.0mm (40.2") |
| Width |
165.0mm (6.5") |
212.0mm (8.3") |
| Depth |
250.0mm (9.8") |
380.0mm (15") |
| Weight |
19.00kg (41.8lbs) |
22.14kg (48.7lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Finish |
HDF |
MDF/Wood Veneer |
| Available Colors |
Walnut, Satin Black |
Black |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Biamp Inputs |
n/a |
Yes |
Other |
|
|
| Parts Warranty |
|
10 Years |
| Labor Warranty |
|
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 39Hz. |
| Amplifier needs | B | KLH Kendall is more sensitive (96dB vs 90dB), 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 | AE120 Mark II is easier to place; KLH Kendall is bigger, which usually goes with fuller bass. Your room decides. |
| Expandability | depends | KLH Kendall: bi-amping. AE120 Mark II sits in a wider range (4 models), so a matched surround system is easier later. |
| Price | evenly matched | Much the same money ($1,499 vs $1,500 a pair). |
A AE120 Mark II 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 has the edge on paper, though the margin is not large. The rows marked "depends" may matter more to you than the score does. If a subwoofer is in your plans, the bass gap largely stops mattering - you would be crossing over above 39Hz anyway, so judge these on the other rows instead. In a large or open-plan room, KLH Kendall has the cabinet volume to fill it more easily; in a small room, near a wall or at desk distance, AE120 Mark II 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.