In this review, we will be comparing AE509 and AE309, two Passive Floor-standing speakers by Acoustic Energy Let's have a brief look at the main features
of AE509 and AE309 first before getting into our more
detailed comparison.
What size room are the AE509 and AE309 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:
In the following sections, we will get into more detail in order to better understand how the AE509 and AE309 compare and hopefully end up with enough arguments to decide which one of these loudspeakers is the better choice for you.
**This post contains affiliate links, and I will be compensated if you make a purchase after clicking
through my links. As an Amazon Associate I earn from qualifying purchases.
Drivers
One of the fundamental differences between these two speakers is that AE509 is a 2-way design whereas the AE309 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.
| Driver |
AE509 |
AE309 |
|
Driver Setup
|
2-way
|
3-way
|
|
Tweeter
|
1-inch
|
1.1-inch
|
|
Midrange
|
- |
1 x 5.2-inch |
|
Woofer
|
2 x 5-inch
|
1 x 5.2-inch
|
AE509 features a 1" carbon fibre dome with waveguide Tweeter and 2 x 5" carbon fibre cone Woofer with a Crossover frequency at 2800Hz. On the other hand, the AE309 features a 1.1" aluminium dome with waveguide Tweeter , a 5.2" Midrange and 1 x 5.2" ceramic aluminium sandwich Woofer with a Crossover frequency at 296Hz and 2560Hz.
Frequency Response
AE509 has a frequency range of 32Hz - 28kHz whereas AE309 has a frequency range of 38Hz - 30kHz. With a minimum frequency of 32Hz, the AE509 can go significantly deeper on the low side and provide stronger bass compared to the AE309's min frequency of 38Hz.
Below graphs depict how these two speakers compare with the max, min and average values of the Min and Max Frequencies of other speakers in the Floor-standing class in our database.
Low Frequency
Floor-standing Speakers
High Frequency
Floor-standing Speakers
None of these speakers achieves full range experience which is commonly agreed as 20Hz-20kHz. In order to achieve lower lows / deeper bass, we recommend you pair these with a subwoofer. Visit our Powered Subwoofers section to find out more about the available options.
Impedance and Sensitivity
AE509 and AE309 have the same Impedance of 6 ohms and their sensitivity is also same at 89 dB.
Sensitivity
Floor-standing Speakers
Power Range
Power
range is the range of input power in watts RMS that a loudspeaker is designed to handle. While using an amplifier within this range ensures the nominal performance , inputting a power that is higher than the max wattage can result in a damaged speaker.
AE509 and AE309 has the same power range of up to 175 watts.
Keep in mind that a higher max power handling value doesn't necessarily make that a louder speaker
compared to a lower max handling speaker. Loudness or the sound level is also impacted by parameters
such as Impedance, sensitivity and system efficiencies.
Cabinet Type and Port Position
Both AE509 and AE309 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
Size of a speaker can sometimes become an important decision factor due to space constraints or in some cases purely for esthetic reasons. In this section, we are going to compare AE509's and AE309's external dimensions. AE509 has external dimensions of 1000.0 x 185.0 x 270.0mm ( 39.4 x 7.3 x 10.6inch) whereas AE309 has external dimensions of 900.0 x 175.0 x 260.0mm ( 35.4 x 6.9 x 10.2inch) .
AE509 is clearly the larger of the two speakers. Its body is 10mm wider, 100mm taller and 10mm deeper than AE309.
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 AE509 is approximately 499.5cm2 / 77.4inch2 and base area of the AE309 is approximately 455.0cm2 / 70.5inch2. The AE509 requires 10% more surface area than the AE309 which gives it a small disadvantage 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 AE509 weighs 22.00kg / 48.4lbs and the AE309 weighs 22.00kg / 48.4lbs.
Here is a comparison of how AE509 and AE309's weights compare with the average, max and min weights in Passive Floor-standing class.
Weight
All Floor-standing Speakers
 Number of Woofers |
2
vs
1
|
More woofers |
| Low Frequency Response |
32 Hz
vs
38 Hz
|
Generates deeper bass |
 Driver Setup |
3-way
vs
2-way
|
Have a dedicated mid-range driver |
| Woofer Size |
5.2 inches
vs
5 inches
|
Larger woofer |
 High Frequency Response |
30k Hz
vs
28k Hz
|
Generates higher frequency |
 Height |
900mm
vs
1000mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
455cm2 (175x260mm)
vs
499cm2 (185x270mm)
|
Takes less floor space |
 Price per pair* |
1899USD
vs
3499USD
|
costs less (*prices may change depending on the seller, location and time) |
| General |
Acoustic Energy AE509 |
Acoustic Energy AE309 |
| Brand |
Acoustic Energy |
Acoustic Energy |
| Speaker Type |
Floor-standing speaker |
Floor-standing speaker |
| Power Range |
up to 175 watts |
up to 175 watts |
| Sensitivity |
89 dB |
89 dB |
| Impedance |
6 ohms |
6 ohms |
| Frequency Response |
32Hz - 28kHz |
38Hz - 30kHz |
Drivers |
|
|
| Woofer Quantity |
2 |
1 |
| Woofer Size |
5" |
5.2" |
| Woofer Composition |
carbon fibre cone |
ceramic aluminium sandwich |
| Tweeter Size |
1" |
1.1" |
| Tweeter Type |
dome with waveguide |
dome with waveguide |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
5.2" |
| Crossover Frequency |
2800Hz |
296Hz and 2560Hz |
| Firing Direction |
rear |
rear |
Physical Specs |
|
|
| Height |
1000.0mm (39.4") |
900.0mm (35.4") |
| Width |
185.0mm (7.3") |
175.0mm (6.9") |
| Depth |
270.0mm (10.6") |
260.0mm (10.2") |
| Weight |
22.00kg (48.4lbs) |
22.00kg (48.4lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Finish |
Resonance Suppression Composite (RSC) |
high density MDF |
| Available Colors |
Piano Gloss Black, Piano Gloss White, American Walnut wood veneer |
Piano Gloss White, Piano Gloss Black, Real Walnut wood veneer |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
|
|
| Labor Warranty |
|
|