Acoustic Energy AE2 40th Anniversary is a 2-way Passive Bass Reflex Bookshelf speaker by Acoustic Energy. It was released in October 2026. It features a 1.1" Dome Tweeter and 2 x 5" ceramic-coated aluminium Woofer.
The AE1 40th Anniversary drivers in a bigger box: the same 29 mm anodised aluminium dome tweeter between two of the same 125 mm (5-inch) spun aluminium woofers, in an offset MTM layout. Crossover at 2.2 kHz, low-order. 18-32 mm RSC constrained-layer HDF/bitumen cabinet, braced and lined with 3 mm steel plates, with three front ports flared at both ends. Single-wired. Acoustic Energy says it suits rooms larger than about 25 square metres. Frequency range is quoted at +/-6 dB, not the usual +/-3 dB.
The speaker has a frequency range of 35-45k Hz and a sensitivity of 88 dB.
Room Size Suitability
The size of the room where you plan to use the Acoustic Energy AE2 40th Anniversary 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-field | Poor |
| Small Room | Average |
| Mid-size Room | Good |
| Large Room | Good |
| Very Large Room | Average |
(* 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 40th Anniversary Series of Loudspeakers
AE2 40th Anniversary is a member of Acoustic Energy's 40th Anniversary series of Passive speakers. Below you can see the main specs of these speakers.
Acoustic Energy 40th Anniversary Series Speakers
Frequency Response of the Acoustic Energy AE2 40th Anniversary Speaker
Acoustic Energy AE2 40th Anniversary has a Frequency response range of 35-45k Hz at ±6dB and Power Range of up to 200 watts. With a minimum frequency of 35 Hz, AE2 40th Anniversary 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 AE2 40th Anniversary's Low frequency value compares with the average, max and min Low frequency values in its class.
Low Frequency
Bookshelf Speakers
Acoustic Energy AE2 40th Anniversary
Thinking about a subwoofer for the Acoustic Energy AE2 40th Anniversary?
Crossover frequency of the Acoustic Energy AE2 40th Anniversary?
The crossover frequency of the AE2 40th Anniversary is set to 2200Hz. This is the threshold frequency where the higher frequency signals over this level are sent to the tweeter and the lower-frequency signals are sent to the woofer by the crossover component.
Impedance and Sensitivity
Acoustic Energy AE2 40th Anniversary's nominal impedance level is
6 ohms and has a sensitivity of
88 dB.
Sensitivity
Bookshelf Speakers
Acoustic Energy AE2 40th Anniversary
Nominal Impedance of the 6 Ohms makes the Acoustic Energy AE2 40th Anniversary a relatively difficult to drive speaker compared to more frequently found 8 ohms speakers from nominal Impedance perspective.
Sensitivity
88dB of the Acoustic Energy AE2 40th Anniversary is an average sensitivity for stereo speaker so it is neither easy nor difficult to drive Sensitivity wise. Work out how loud the Acoustic Energy AE2 40th Anniversary plays in your room →
Running more than one pair from a single amplifier? Check the load it would present →
What amplifier does the Acoustic Energy AE2 40th Anniversary need?
At normal listening levels in a medium room, about
16–200 W
per channel into 6 ohms.
Set your own conditions and we will rank every amplifier we cover.
Prefer to browse? See every integrated amplifier we cover.
Input Type
AE2 40th Anniversary features Single binding posts type connectors. Bi-amping and Bi-wiring are not possible.
Work out what gauge speaker cable this run needs →
Acoustic Energy AE2 40th Anniversary External Dimensions and Weight
Acoustic Energy AE2 40th Anniversary has external dimensions of (Height x Width x Depth) 15.2 x 9.3 x 12.4inch (385.0 x 235.0 x 315.0mm ).
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 Acoustic Energy AE2 40th Anniversary is approximately 740.3cm2 / 114.7inch2.
Millimetres are hard to picture, so here is the Acoustic Energy AE2 40th Anniversary drawn to scale next to the Klipsch R-51M, the closest bookshelf to it in price that we cover.
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.
Acoustic Energy AE2 40th Anniversary needs about 93% more floor or shelf area. Acoustic Energy AE2 40th Anniversary is 100mm deeper, so it stands that much further out from the wall. Acoustic Energy AE2 40th Anniversary is 47mm taller.
Full comparison: Acoustic Energy AE2 40th Anniversary vs Klipsch R-51M ›
Find speakers that fit your shelf or alcove → · Work out where they should sit in the room →
WeightThe Acoustic Energy AE2 40th Anniversary weighs 14.50kg / 31.9lbs per piece. Here is a comparison of how AE2 40th Anniversary's weight compares with the average, max and min weights in its class.
Weight
All Bookshelf Speakers
Acoustic Energy AE2 40th Anniversary
Cabinet type and Materials
Acoustic Energy AE2 40th Anniversary has a
Bass Reflex type cabinet and a RSC constrained-layer HDF/bitumen, ten-coat high gloss 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
Acoustic Energy AE2 40th Anniversary is a front-firing port speaker, which gives you more flexibility compared to rear firing speakers when you need to place it close against a wall or other surfaces.
Available colors
Acoustic Energy AE2 40th Anniversary is available in High Gloss Walnut and High Gloss Black.
Wall Mounting
AE2 40th Anniversary doesn't sport any built-in mounting bracket, so you need an external structure to mount it on walls.
Does the Acoustic Energy AE2 40th Anniversary come with a Grille?
AE2 40th Anniversary 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 AE2 40th Anniversary is magnetic type, it is very easy to put it on and off.
Recommended Accessories
Here is a list of accessories that we think you may need for the Acoustic Energy AE2 40th Anniversary.
- Speaker Cable and Connectors
- 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.
- Speaker Stands: Stands bring your bookshelf speakers to ideal height (rule of thumb is to have the tweeter level with your ear in your listening position), helps stability and acoustical isolation.
Official Product Page
Official manufacturer's product page for the Acoustic Energy AE2 40th Anniversary speaker can be found below:
Official Product Page for Acoustic Energy AE2 40th Anniversary