In this review, we will be comparing AE309 and R700, two Passive Floor-standing speakers from Acoustic Energy and Polk Audio.
Let's have a brief look at the main features
of AE309 and Polk R700 first before getting into our more
detailed comparison.
AE309 Key Specs
- 3-way Design
- 1.1" dome with waveguide Tweeter
- 5.2" Midrange
- 5.2" ceramic aluminium sandwich Woofer
- 38Hz - 30kHz Frequency Response
- 89 dB Sensitivity
- Impedance: 6ohms
- Power Range:up to 175watts
- Weight:22.00kg
- Dimensions (H x W x D): 900.0" x 6.9" x 10.2"( 900.0 x 175.0 x 260.0mm )
Polk R700 Key Specs
- 3-way Design
- 1" Pinnacle Ring Radiator Tweeter
- 6.5" Midrange
- 2 x 8" Polypropylene Woofer
- 6.5" Midrange
- 38-38k Hz Frequency Response
- 88 dB Sensitivity
- Impedance: 8ohms
- Power Range:50-300watts
- Weight:35.90kg
- Dimensions (H x W x D): 1143.8" x 12.6" x 16.9"( 1143.8 x 320.7 x 428.3mm )
What size room are the AE309 and Polk R700 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* |
AE309 |
Polk R700 |
| Near-field |
Bad |
Bad |
| Small Room |
Poor |
Poor |
| Mid-size Room |
Good |
Average |
| Large Room |
Good |
Good |
| Very Large Room |
Poor |
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.)
In the following sections, we will get into more detail in order to better understand how the AE309 and Polk R700 compare and hopefully end up with enough arguments to decide which one of these loudspeakers is the better choice for you.
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Drivers
Both AE309 and R700 are 3-way speakers.
| Driver |
AE309 |
Polk R700 |
|
Driver Setup
|
3-way
|
3-way
|
|
Tweeter
|
1.1-inch
|
1-inch
|
|
Midrange
|
1 x 5.2-inch |
1 x 6.5-inch |
|
Woofer
|
1 x 5.2-inch
|
2 x 8-inch
|
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. On the other hand, the R700 features a 1" Pinnacle Ring Radiator Tweeter , a 6.5" Midrange and 2 x 8" Polypropylene Woofer with a Crossover frequency at 350Hz and 2700Hz.
Frequency Response
AE309 has a frequency range of 38Hz - 30kHz whereas R700 has a frequency range of 38-38k Hz.
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
AE309 is a 6 ohms speaker compared to the R700 which has a nominal impedance of 8 ohms.
These two speakers also have different sensitivity levels. AE309 sensitivity is rated at 89 dB and the R700's is rated at 88 dB. This 1 dB difference makes the AE309 a more sensitive speaker compared to Polk R700, hence will play louder with the same amount of watts.
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.
AE309 can handle a max power of 300 watts RMS from the amp the whereas AE309 has a max power handling value of 175 watts RMS , 125 watts less than the R700.
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
AE309 has a rear firing port whereas R700 has a bottom firing ports. Polk R700's bottom-firing port gives more flexibility in placement in regards to proximity to walls compared to AE309 with its rear-firing port.
Polk R700 Port
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 AE309's and Polk R700's external dimensions. AE309 has external dimensions of 900.0 x 175.0 x 260.0mm ( 35.4 x 6.9 x 10.2inch) whereas Polk R700 has external dimensions of 1143.8 x 320.7 x 428.3mm ( 45 x 12.6 x 16.9inch) .
Polk R700 is clearly the larger of the two speakers. Its body is 145.7mm wider, 243.8mm taller and 168.3mm 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 AE309 is approximately 455.0cm2 / 70.5inch2 and base area of the Polk R700 is approximately 1373.6cm2 / 212.9inch2. The AE309 requires 67% less surface area than the R700 which gives it a small advantage on placement in tight spaces.