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  1. Home
  2. Acoustic Energy Speakers
  3. AE120 Mark II vs AE100 Mark II

AE120 Mark II vs AE100 Mark II Comparison

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AE120 Mark II

Passive Floor-standing | 39Hz - 26kHz

Acoustic Energy AE120 Mark II
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AE100 Mark II

Passive Bookshelf | 51Hz - 26kHz

Acoustic Energy AE100 Mark II
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AE120 Mark II AE120 Mark II
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 AE100 Mark II AE100 Mark II
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AE120 Mark II
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AE100 Mark II
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AE120 Mark II vs AE100 Mark II Speaker Comparison

In this review, we will be comparing two different types of speakers by Acoustic Energy. Acoustic Energy AE120 Mark II is a Floor-standing speaker whereas the AE100 MII is a Bookshelf speaker.

Let's have a brief look at the main features of AE120 Mark II and AE100 Mark II first before getting into our more detailed comparison.

Key SpecsAE120 Mark II AE100 Mark II
Design3-way2-way
Tweeter1" dome with waveguide1" soft dome with waveguide
Midrange5.2"—
Woofer2 x 5.2" paper cone5.2" paper cone
Frequency response39Hz - 26kHz51Hz - 26kHz
Sensitivity90 dB87 dB
Impedance6 ohms6 ohms
Power rangeup to 200 wattsup to 120 watts
Weight19.00kg / 41.8lbs4.60kg / 10.1lbs
Dimensions (H x W x D)37.4" x 6.5" x 9.8"
950.0 x 165.0 x 250.0mm
11.4" x 6.5" x 9.8"
290.0 x 165.0 x 250.0mm

AE120 MII and AE100 MII are members of Acoustic Energy's AE100 series of speakers. Below you can find the loudspeakers from this series.

Acoustic Energy AE100 Series History
Model Body Frequency SensitivityImpedance Woofer
AE100 Mark II
Bookshelf 51Hz - 26kHz 87 dB6Ω 1 x 5.2"
AE109 Mark II
  
Floor-standing 41Hz - 26kHz 89 dB6Ω 1 x 5.2"
AE120 Mark II
Floor-standing 39Hz - 26kHz 90 dB6Ω 2 x 5.2"
AE107 Mark II
  
Center Channel 55Hz - 26kHz 90 dB6Ω 2 x 5.2"

What size room are the AE120 Mark II and AE100 Mark II 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* AE120 Mark II AE100 Mark II
Near-field Bad Poor
Small Room Poor Average
Mid-size Room Good Good
Large Room Good 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.


**This post contains affiliate links, and we will be compensated if you make a purchase after clicking through our links. As an Amazon Associate I earn from qualifying purchases.


Drivers

One of the fundamental differences between these two speakers is that AE120 MII is a 3-way design whereas the AE100 MII is a 2-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.

Tweeter - 1 inchMidrange - 5.2 inchWoofer - 5.2 inchWoofer - 5.2 inch
AE120 Mark II
Tweeter - 1 inchWoofer - 5.2 inch
AE100 Mark II

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 AE100 Mark II
Driver Setup 3-way 2-way
Tweeter 1-inch 1-inch
Midrange 1 x 5.2-inch -
Woofer 2 x 5.2-inch 1 x 5.2-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 AE100 MII features a 1" fabric soft dome with waveguide Tweeter and 1 x 5.2" paper cone Woofer with a Crossover frequency at 2900Hz.

AE120 Mark II driver frequency bandsAE120 Mark II AE100 Mark II39-30051-2.9kWoofer300-2.7kMidrange2.7k-26k2.9k-26kTweeter20501002005001k2k5k10k20k40kHz, log scale

Frequency Response

AE120 MII has a frequency range of 39Hz - 26kHz whereas AE100 MII has a frequency range of 51Hz - 26kHz. With a minimum frequency of 39Hz, the AE120 MII can go significantly deeper on the low side and provide stronger bass compared to the AE100 MII's min frequency of 51Hz.

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

AE120 MII
AE100 MII
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

AE120 MII and AE100 MII have the same Impedance of 6 ohms but where they differ is the sensitivity levels. AE120 MII sensitivity is rated at 90 dB and the AE100 MII's is at 87 dB. This 3 dB difference makes the AE120 Mark II a more sensitive speaker compared to AE100 Mark II, hence will play louder with the same amount of watts.

Sensitivity

Floor-standing Speakers

AE120 MII
AE100 MII
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.

AE120 MII can handle a max power of 200 watts RMS, whereas AE100 MII has a max power handling value of 120 watts RMS, 80 watts less than the AE120 MII.

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.

AE120 Mark II
 
AE100 Mark II
 

Cabinet Type and Port Position

Both AE120 MII and AE100 MII have rear firing ports. Rear ported speakers generally need more room between the backside of the speaker and the wall compared to sealed and front/bottom ported speakers. Placing the speakers too close to the walls may cause the bass to sound boomy.

If you are limited in space and can't get the speakers away from the backwall, check our Speakers with Front Firing Ports page.

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 AE100 Mark II'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 AE100 Mark II has external dimensions of 290.0 x 165.0 x 250.0mm (11.4 x 6.5 x 9.8inch).

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 AE100 Mark II is approximately 412.5cm2 / 63.9inch2.


Reasons to choose Acoustic Energy AE120 Mark II over Acoustic Energy AE100 Mark II

Max Input Power 200 watts vs 120 watts Handle more power from your amplifier
Driver Setup 3-way vs 2-way Have a dedicated mid-range driver
Sensitivity 90 dB vs 87 dB Play louder with same amount of amplification power
Number of Woofers 2 vs 1 More woofers
Low Frequency Response 39 Hz vs 51 Hz Generates deeper bass

Reasons to choose Acoustic Energy AE100 Mark II over Acoustic Energy AE120 Mark II

Height 290mm vs 950mm Easier to fit in smaller spaces
Price per pair* 499USD vs 1499USD costs less (*prices may change depending on the seller, location and time)

AE120 Mark II vs AE100 Mark II Specs Table

Detailed comparison of specifications
General Acoustic Energy AE120 Mark II Acoustic Energy AE100 Mark II
Brand Acoustic Energy Acoustic Energy
Speaker Type Floor-standing speaker Bookshelf speakers
Power Range up to 200 watts up to 120 watts
Sensitivity 90 dB 87 dB
Impedance 6 ohms 6 ohms
Frequency Response 39Hz - 26kHz 51Hz - 26kHz
Drivers
Woofer Quantity 2 1
Woofer Size 5.2" 5.2"
Woofer Composition paper cone paper cone
Tweeter Size 1" 1"
Tweeter Type dome with waveguide soft dome with waveguide
Aimable Tweeter No No
Midrange Driver 5.2" No
Crossover Frequency 300Hz and 2.7kHz 2900Hz
Firing Direction rear rear
Physical Specs
Height 950.0mm (37.4") 290.0mm (11.4")
Width 165.0mm (6.5") 165.0mm (6.5")
Depth 250.0mm (9.8") 250.0mm (9.8")
Weight 19.00kg (41.8lbs) 4.60kg (10.1lbs)
Enclosure Bass Reflex Bass Reflex
Finish HDF HDF
Available Colors Walnut, Satin Black Walnut, Satin Black, White
Mounting Bracket
Grille Yes Yes
Moisture Resistancy No No
Connections
Other
Parts Warranty
Labor Warranty

Verdict

Siblings in Acoustic Energy's AE100 series, so they share a family sound. It comes down to size, output and price.

AreaBetterWhy
Bass A AE120 Mark II digs deeper - 39Hz against 51Hz.
Amplifier needs A AE120 Mark II is more sensitive (90dB vs 87dB), so it goes louder on the same amplifier.
Headroom A AE120 Mark II takes more power (200W vs 120W) - more in hand in a big room.
Size depends AE100 Mark II is easier to place; AE120 Mark II is bigger, which usually goes with fuller bass. Your room decides.
Type depends A Passive Floor-standing against a Passive Bookshelf - a different job rather than a better one.
Price B AE100 Mark II is cheaper - $499 against $1,499, about 67% less; arguably a different class.

A AE120 Mark II   B AE100 Mark II
depends neither is better in the abstract - it turns on your room, placement 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: AE120 Mark II measures better, AE100 Mark II costs about 67% 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 51Hz anyway, which makes the cheaper AE100 Mark II much easier to justify. Match it to your room: we rate AE120 Mark II the better fit for a large room, and AE100 Mark II for a small 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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