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  1. Home
  2. Acoustic Energy Speakers
  3. Passive Floor-standing Speakers
  4. Acoustic Energy AE109 Mark II
Acoustic Energy AE109 MII Review
AE109 Mark II - Front View

Compare To

Main Features

  • 1" dome with waveguide Tweeter
  • 5.2" paper cone Midrange
  • 5.2" paper cone Woofer
  • 41Hz - 26kHz Frequency Response
  • 89 dB Sensitivity
  • Impedance: 6ohms
  • Power Range: up to 175 watts
  • Weight: 35.20 lbs / 16.00 kg
  • Dimensions(HxWxD): 33.9"x6.5"x9.8" / 860.0 x 165.0 x 250.0mm
MSRP: $999 (list price)
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AE109 Mark II Review
AE109 Mark II AE109 Mark II
Check price atAmazon›

Made by Acoustic Energy · United Kingdom · since 1987 · sold through dealers

Acoustic Energy AE109 Mark II is a 3-way Passive Bass Reflex Floor-standing speaker by Acoustic Energy. It was released in 2021. It features a 1" dome with waveguide Tweeter, 1 x 5.2" Midrange and 1 x 5.2" paper cone Woofer. The speaker has a frequency range of 41Hz - 26kHz and a sensitivity of 89 dB. AE109 Mark II has an MSRP of 999$ per pair.

Room Size Suitability

The size of the room where you plan to use the AE109 Mark II is a crucial factor in your decision. We have assessed its suitability for various room sizes based on its dimensions and maximum power output:

Listening Environment* Suitability
Near-fieldBad
Small RoomPoor
Mid-size RoomGood
Large RoomGood
Very Large RoomPoor

(* 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.)

Acoustic Energy's AE100 Series of Loudspeakers

AE109 MII is a member of Acoustic Energy's AE100 series of Passive speakers. The AE100 is Acoustic Energy's entry range, compact British-designed speakers that punch above their price with a fibre-cone woofer and wide-dispersion tweeter. Below you can see the main specs of these speakers.

See all 4 Acoustic Energy AE100 models compared »

Acoustic Energy AE100 Series Speakers
Model Frequency SensitivityImpedance Woofer
AE100 Mark II
Compare
51-26k Hz 87 dB6Ω 1 x 5.2"
AE109 Mark II
41-26k Hz 89 dB6Ω 1 x 5.2"
AE120 Mark II
Compare
39-26k Hz 90 dB6Ω 2 x 5.2"
AE107 Mark II
Compare
55-26k Hz 90 dB6Ω 2 x 5.2"
Acoustic Energy AE100 Series Speakers
Acoustic Energy AE100 Series Speakers

Frequency Response of the AE109 Mark II Speaker

AE109 Mark II has a Frequency response range of 41Hz - 26kHz and Power Range of up to 175 watts. With a minimum frequency of 41 Hz, AE109 MII delivers deep bass that will likely satisfy most listeners, especially those who enjoy music. However, movie enthusiasts and music fans who prefer a full range of sound may still benefit from adding a subwoofer.

Here we have a comparison of how AE109 MII's Low frequency value compares with the average, max and min Low frequency values in its class.
Low Frequency
Floor-standing Speakers
AE109 Mark II
Min
Average
Median
Thinking about a subwoofer for the AE109 Mark II?
  • Work out the crossover setting - it follows from this speaker's 41 Hz low end
  • Powered subwoofers under $1,000 - a similar price range to these speakers
  • Every powered subwoofer we cover, whatever the budget

Among the speakers in our database with a max MSRP price of 1000$ (Pair), these are the 5 Passive Floor-standing speakers that have the deeper bass levels than the AE109 Mark II's 41Hz:

  • PSB Alpha T20 with Low Frequency of 36 Hz (Compare w/ AE109 MII)
  • Jamo S 809 with Low Frequency of 37 Hz (Compare w/ AE109 MII)
  • Jamo C 95 II with Low Frequency of 37 Hz (Compare w/ AE109 MII)
  • Klipsch RP-4000F with Low Frequency of 37 Hz (Compare w/ AE109 MII)
  • Klipsch R-620F with Low Frequency of 38 Hz (Compare w/ AE109 MII)

Crossover frequency of the AE109 Mark II?

AE109 MII is a 3-way speaker and its crossover frequency between the woofer and the midrange is set to 275 Hz and the crossover frequency between the midrange and the tweeter is set to 2500 Hz.

AE109 Mark II driver frequency bands41-275Woofer 5.2"275-2.5kMidrange 5.2"2.5k-26kTweeter 1"20501002005001k2k5k10k20k40kHz, log scale

Impedance and Sensitivity

AE109 Mark II's nominal impedance level is 6 ohms and has a sensitivity of 89 dB.

Sensitivity
Floor-standing Speakers
AE109 Mark II
Min
Average
Median

Nominal Impedance of the 6 Ohms makes the Acoustic Energy AE109 Mark II a relatively difficult to drive speaker compared to more frequently found 8 ohms speakers from nominal Impedance perspective.

Sensitivity

89dB of the Acoustic Energy AE109 Mark II is an average sensitivity for stereo speaker so it is neither easy nor difficult to drive Sensitivity wise. Work out how loud the AE109 Mark II plays in your room →

Running more than one pair from a single amplifier? Check the load it would present →

What amplifier does the AE109 Mark II need?

At normal listening levels in a medium room, about 13–175 W per channel into 6 ohms. Set your own conditions and we will rank every amplifier we cover.

We check power, impedance safety and current delivery - not just watts.

Prefer to browse? Integrated amplifiers under $1,000, or every amplifier we cover.

Input Type

AE109 MII features type connectors.

AE109 Mark II External Dimensions and Weight

AE109 Mark II has external dimensions of (Height x Width x Depth) 33.9 x 6.5 x 9.8inch (860.0 x 165.0 x 250.0mm ).

Base Surface Area
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited. The base area of AE109 Mark II is approximately 412.5cm2 / 63.9inch2.

Find speakers that fit your shelf or alcove →  ·  Work out where they should sit in the room →

Weight

The AE109 Mark II weighs 16.00kg / 35.2lbs per piece. Here is a comparison of how AE109 MII's weight compares with the average, max and min weights in its class.

Weight
All Floor-standing Speakers
AE109 Mark II
Min
Average
Median
Weight
Floor-standing Speakers under $1000
AE109 Mark II
Min
Average
Max

How does the AE109 Mark II compare to the Acoustic Energy AE120 Mark II?

One of the natural alternative to the AE109 Mark II is the AE120 MII which is located one step higher in Acoustic Energy's Passive Floor-standing selection.

Check the Detailed Comparison of AE109 Mark II vs AE120 MII for more details.

Cabinet type and Materials

AE109 Mark II has a Bass Reflex type cabinet and a HDF finish. Bass Reflex type loudspeakers (aka Ported, Vented or Reflex Port) have enclosures that uses a port, hole or vent cut into the cabinet. Ported designs are generally more efficient than the Sealed designs.

Port Position

AE109 Mark II is a rear-firing port speaker so you have to make sure you leave enough space between the back of the speaker and wall or bookshelf so that it has room to breathe.

Available colors

AE109 Mark II is available in Walnut and Satin Black.

Does the AE109 Mark II come with a Grille?

AE109 MII comes with magnetic grilles. The purpose of the grille is to protect the delicate driver elements from external impacts while still allowing the sound to pass as clearly as possible. Since the included grille of the AE109 MII is magnetic type, it is very easy to put it on and off.

AE109 Mark II  with Grille
AE109 Mark II with Grille

Recommended Accessories

Here is a list of accessories that we think you may need for the Acoustic Energy AE109 Mark II.

  • Speaker Cable and Connectors
    • Speaker Cables with Banana Plugs: If you know the lenght of the cable you need, this is the easier option to connect your speakers with your amp.
    • Speaker Cables without Connectors: If you are not sure about the lenght or need longer than standard cables with plugs, choose this option.
    • Banana Connectors and Plugs: If you chose the cables without connectors option or already have some cable around, pick the banana plugs separately.
  • Vibration Isolators: IsoAcoustics isolators are our favorite isolators but you may find more affordable options too.
  • Acoustic Panels and Treatments: Your room is as important as your stereo equipment so acoustic treatments goes a long way in improving the overall performance.

User's Manual

For more information about how to setup, use and maintain the Acoustic Energy AE109 Mark II, use the direct link below to download the official manual document:
Download User Manual for AE109 Mark II

Official Brochure

Here is a link to download the official brochure for the Acoustic Energy AE109 Mark II speaker:
Official Brochure for AE109 Mark II

Official Product Page

Official manufacturer's product page for the Acoustic Energy AE109 Mark II speaker can be found below:
Official Product Page for AE109 Mark II

Acoustic Energy AE109 Mark II Alternatives in Passive Floor-standing Speakers
Model Type Sensitivity Impedance Frequency
AE120 Mark II
Compare
3-way 90 dB 6 ohms 39Hz - 26kHz
AE100 Mark II
Compare
2-way 87 dB 6 ohms 51Hz - 26kHz
AE107 Mark II
Compare
2-way 90 dB 6 ohms 55Hz - 26kHz
Wharfedale Diamond 12.3
Compare
2-way 88 dB 8 ohms 45-20k Hz
Triangle Borea BR07
Compare
3-way 91 dB 8 ohms 44 - 22k Hz
B&W 603
Compare
3-way 88.5 dB 8 ohms 48-28k Hz
Klipsch RP-6000F
Compare
2-way 97 dB 8 ohms 34-25k Hz
Jamo S 809
Compare
2-way 90 dB 8 ohms 37-26k Hz
Frequently Asked Questions about Acoustic Energy AE109 Mark II

What amplifier do you need for the AE109 Mark II?

Acoustic Energy rates the AE109 Mark II for up to 175 watts of amplifier power. It is a 6-ohm speaker, which most amplifiers and receivers handle without trouble.

Is the AE109 Mark II easy to drive?

The AE109 Mark II has a sensitivity of 89 dB. That is about average for a home speaker, so it is neither hard nor especially easy to drive.

Does the AE109 Mark II need a subwoofer?

The AE109 Mark II reaches down to 41Hz (full range 41Hz - 26kHz). That is deep enough that many listeners will not feel the need for a subwoofer with music.

What drivers does the AE109 Mark II use?

The AE109 Mark II is a 3-way design using a 1" dome with waveguide tweeter, a 5.2" midrange and a 5.2" paper cone woofer.

Is the AE109 Mark II sealed or ported?

The AE109 Mark II uses a Ported enclosure. A ported design uses a tuned vent to get more low-end output from the same driver, but it wants some breathing room behind it.

Does the AE109 Mark II come with grilles?

Yes. The AE109 Mark II comes with removable grilles.

How big and heavy is the AE109 Mark II?

The AE109 Mark II weighs 16.00kg / 35.2lbs each and measures 33.9 x 6.5 x 9.8inch (HxWxD).

How much does the AE109 Mark II cost?

The AE109 Mark II has a manufacturer's list price (MSRP) of $999 per pair.


AE109 Mark II Detailed Specifications

General
BrandAcoustic Energy
Full Model NameAcoustic Energy AE109 Mark II
Speaker Type3-way Floor-standing
Power Rangeup to 175 watts
Sensitivity89 dB
Impedance6 ohms
Max SPL115 dB
Frequency Response41Hz - 26kHz
Release Date2021
DRIVERS
Woofer Size5.2-inch
Woofer Compositionpaper cone
Tweeter Size1-inch
Tweeter Typedome with waveguide
Midrange Size5.2-inch
Crossover freq275Hz and 2.5kHz
Port Positionrear

CONNECTIONS
Port Positionrear
PHYSICAL SPECS
Height860.0mm ( 33.9-inch)
Width165.0mm ( 6.5-inch)
Depth250.0mm ( 9.8-inch)
Height860.0mm ( 33.9-inch)
Weight16 kg (35.2 lbs)
EnclosureBass Reflex
FinishHDF
Available ColorsWalnut, Satin Black
GrilleYes
Moisture ResistanceNo
OTHER
Handheld RemoteNo
Parts Warranty
Labor Warranty
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