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  1. Home
  2. Acoustic Energy Speakers
  3. AE500 vs AE509

AE500 vs AE509 Comparison

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Speaker to replace
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AE500

Passive Bookshelf | 45Hz - 28kHz

Acoustic Energy AE500
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AE509

Passive Floor-standing | 32Hz - 28kHz

Acoustic Energy AE509
Check price atAmazon›
 AE500 AE500
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AE509 AE509
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AE500
See at AMAZON
AE509
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AE500 vs AE509 Speaker Comparison

In this review, we will be comparing two different types of speakers by Acoustic Energy. Acoustic Energy AE500 is a Bookshelf speaker whereas the AE509 is a Floor-standing speaker.

Let's have a brief look at the main features of AE500 and AE509 first before getting into our more detailed comparison.

Key Specs AE500AE509
Design2-way2-way
Tweeter1" dome with waveguide1" dome with waveguide
Woofer5" carbon fibre cone2 x 5" carbon fibre cone
Frequency response45Hz - 28kHz32Hz - 28kHz
Sensitivity87 dB89 dB
Impedance6 ohms6 ohms
Power rangeup to 120 wattsup to 175 watts
Weight8.00kg / 17.6lbs22.00kg / 48.4lbs
Dimensions (H x W x D)12.2" x 7.3" x 10.2"
310.0 x 185.0 x 260.0mm
39.4" x 7.3" x 10.6"
1000.0 x 185.0 x 270.0mm

AE500 and AE509 are members of Acoustic Energy's AE500 series of speakers. Below you can find the loudspeakers from this series.

Acoustic Energy AE500 Series History
Model Body Frequency SensitivityImpedance Woofer
AE500
Bookshelf 45Hz - 28kHz 87 dB6Ω 1 x 5"
AE520
  
Floor-standing 30Hz - 28kHz 90 dB6Ω 4 x 5"
AE509
Floor-standing 32Hz - 28kHz 89 dB6Ω 2 x 5"

What size room are the AE500 and AE509 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* AE500 AE509
Near-field Average Bad
Small Room Good Poor
Mid-size Room Average Good
Large Room Poor Good
Very Large Room Bad 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

Both AE500 and AE509 are 2-way speakers.

Tweeter - 1 inchWoofer - 5 inch
AE500
Tweeter - 1 inchWoofer - 5 inchWoofer - 5 inch
AE509

TweeterWoofer

Front view, drawn to scale - cabinets and drivers share one scale, so sizes are directly comparable. Hover a driver for its size.

Driver AE500 AE509
Driver Setup 2-way 2-way
Tweeter 1-inch 1-inch
Midrange - -
Woofer 1 x 5-inch 2 x 5-inch

AE500 features a 1" carbon fibre dome with waveguide Tweeter and 1 x 5" carbon fibre cone Woofer with a Crossover frequency at 2800Hz. On the other hand, the AE509 features a 1" carbon fibre dome with waveguide Tweeter and 2 x 5" carbon fibre cone Woofer with a Crossover frequency at 2800Hz.

AE500 driver frequency bands AE500AE50945-2.8k32-2.8kWoofer2.8k-28k2.8k-28kTweeter20501002005001k2k5k10k20k40kHz, log scale

Frequency Response

AE500 has a frequency range of 45Hz - 28kHz whereas AE509 has a frequency range of 32Hz - 28kHz. With a minimum frequency of 32Hz, the AE509 can go significantly deeper on the low side and provide stronger bass compared to the AE500's min frequency of 45Hz.

The graph below depicts how these two speakers compare with the max, min and average Low Frequency values of other speakers in the Bookshelf class in our database.

Low Frequency

Bookshelf Speakers

AE500
AE509
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

AE500 and AE509 have the same Impedance of 6 ohms but where they differ is the sensitivity levels. AE500 sensitivity is rated at 87 dB and the AE509's is at 89 dB. This 2 dB difference makes the AE509 a more sensitive speaker compared to AE500, hence will play louder with the same amount of watts.

Sensitivity

Bookshelf Speakers

AE500
AE509
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.

AE509 can handle a max power of 175 watts RMS, whereas AE500 has a max power handling value of 100 watts RMS, 75 watts less than the AE509.

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.

AE500
 
AE509
 

Cabinet Type and Port Position

Both AE500 and AE509 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 AE500's and AE509's external dimensions. AE500 has external dimensions of 310.0 x 185.0 x 260.0mm (12.2 x 7.3 x 10.2inch) whereas AE509 has external dimensions of 1000.0 x 185.0 x 270.0mm (39.4 x 7.3 x 10.6inch).

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 AE500 is approximately 481.0cm2 / 74.6inch2 and base area of the AE509 is approximately 499.5cm2 / 77.4inch2. The AE500 requires 4% less surface area than the AE509 which gives it a small advantage on placement in tight spaces.


Reasons to choose Acoustic Energy AE500 over Acoustic Energy AE509

Height 310mm vs 1000mm Easier to fit in smaller spaces
Base Surface Area 481cm2 vs 499cm2 Takes less floor space
Price per pair* 1499USD vs 3499USD costs less (*prices may change depending on the seller, location and time)

Reasons to choose Acoustic Energy AE509 over Acoustic Energy AE500

Max Input Power 175 watts vs 100 watts Handle more power from your amplifier
Sensitivity 89 dB vs 87 dB Play louder with same amount of amplification power
Number of Woofers 2 vs 1 More woofers
Low Frequency Response 32 Hz vs 45 Hz Generates deeper bass

AE500 vs AE509 Specs Table

Detailed comparison of specifications
General Acoustic Energy AE500 Acoustic Energy AE509
Brand Acoustic Energy Acoustic Energy
Speaker Type Bookshelf speakers Floor-standing speaker
Power Range up to 120 watts up to 175 watts
Sensitivity 87 dB 89 dB
Impedance 6 ohms 6 ohms
Frequency Response 45Hz - 28kHz 32Hz - 28kHz
Drivers
Woofer Quantity 1 2
Woofer Size 5" 5"
Woofer Composition carbon fibre cone carbon fibre cone
Tweeter Size 1" 1"
Tweeter Type dome with waveguide dome with waveguide
Aimable Tweeter No No
Midrange Driver No No
Crossover Frequency 2800Hz 2800Hz
Firing Direction rear rear
Physical Specs
Height 310.0mm (12.2") 1000.0mm (39.4")
Width 185.0mm (7.3") 185.0mm (7.3")
Depth 260.0mm (10.2") 270.0mm (10.6")
Weight 8.00kg (17.6lbs) 22.00kg (48.4lbs)
Enclosure Bass Reflex Bass Reflex
Finish Resonance Suppression Composite (RSC) Resonance Suppression Composite (RSC)
Available Colors Piano Gloss Black, Piano Gloss White, American Walnut wood veneer Piano Gloss Black, Piano Gloss White, American Walnut wood veneer
Mounting Bracket
Grille Yes Yes
Moisture Resistancy No No
Connections
Other
Parts Warranty
Labor Warranty

Verdict

Siblings in Acoustic Energy's AE500 series, so they share a family sound. It comes down to size, output and price.

AreaBetterWhy
Bass B AE509 digs deeper - 32Hz against 45Hz.
Amplifier needs B AE509 is more sensitive (89dB vs 87dB), so it goes louder on the same amplifier.
Headroom B AE509 takes more power (175W vs 100W) - more in hand in a big room.
Size depends AE500 is easier to place; AE509 is bigger, which usually goes with fuller bass. Your room decides.
Type depends A Passive Bookshelf against a Passive Floor-standing - a different job rather than a better one.
Price A AE500 is cheaper - $1,499 against $3,499, about 57% less; arguably a different class.

A AE500   B AE509
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: AE509 measures better, AE500 costs about 57% 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 45Hz anyway, which makes the cheaper AE500 much easier to justify. Match it to your room: we rate AE500 the better fit for near-field listening and a small room, and AE509 for a mid-size room and a large 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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