In this review, we will be comparing AE100 MII and XT15, two Passive Bookshelf speakers from Acoustic Energy and Polk Audio.
Let's have a brief look at the main features
of AE100 Mark II and Polk XT15 first before getting into our more
detailed comparison.
AE100 Mark II Key Specs
- 2-way Design
- 1" soft dome with waveguide Tweeter
- 5.2" paper cone Woofer
- 51Hz - 26kHz Frequency Response
- 87 dB Sensitivity
- Impedance: 6ohms
- Power Range:up to 120watts
- Weight:4.60kg
- Dimensions (H x W x D): 290.0" x 6.5" x 9.8"( 290.0 x 165.0 x 250.0mm )
Polk XT15 Key Specs
- 2-way Design
- 1" Soft-Dome Tweeter
- 5.25" Bi-laminate paper Woofer
- 48-40k Hz Frequency Response
- 86 dB Sensitivity
- Impedance: 8ohms
- Power Range:30-150watts
- Weight:4.09kg
- Dimensions (H x W x D): 270.0" x 6-9/16" x 7-3/16"( 270.0 x 167.0 x 183.0mm )
What size room are the AE100 Mark II and Polk XT15 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* |
AE100 Mark II |
Polk XT15 |
| Near-field |
Poor |
Poor |
| Small Room |
Average |
Average |
| Mid-size Room |
Good |
Good |
| Large Room |
Average |
Average |
| Very Large Room |
Poor |
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.)
In the following sections, we will get into more detail in order to better understand how the AE100 Mark II and Polk XT15 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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through my links. As an Amazon Associate I earn from qualifying purchases.
Drivers
Both AE100 MII and XT15 are 2-way speakers.
| Driver |
AE100 Mark II |
Polk XT15 |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
1 x 5.2-inch
|
1 x 5.25-inch
|
AE100 MII features a 1" fabric soft dome with waveguide Tweeter and 1 x 5.2" paper cone Woofer with a Crossover frequency at 2900Hz. On the other hand, the XT15 features a 1" Soft-Dome Tweeter and 1 x 5.25" Bi-laminate paper Woofer .
Frequency Response
AE100 MII has a frequency range of 51Hz - 26kHz whereas XT15 has a frequency range of 48-40k Hz. With a minimum frequency of 48Hz, the XT15 can go slightly deeper then the AE100 MII's min frequency of 51Hz.
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 Bookshelf class in our database.
Low Frequency
Bookshelf Speakers
High Frequency
Bookshelf 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
AE100 MII is a 6 ohms speaker compared to the XT15 which has a nominal impedance of 8 ohms.
These two speakers also have different sensitivity levels. AE100 MII sensitivity is rated at 87 dB and the XT15's is rated at 86 dB. This 1 dB difference makes the AE100 Mark II a more sensitive speaker compared to Polk XT15, hence will play louder with the same amount of watts.
Sensitivity
Bookshelf 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.
AE100 MII can handle a max power of 150 watts RMS from the amp the whereas AE100 MII has a max power handling value of 120 watts RMS , 30 watts less than the XT15.
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.
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 AE100 Mark II's and Polk XT15's external dimensions. AE100 Mark II has external dimensions of 290.0 x 165.0 x 250.0mm ( 11.4 x 6.5 x 9.8inch) whereas Polk XT15 has external dimensions of 270.0 x 167.0 x 183.0mm ( 10-5/8 x 6-9/16 x 7-3/16inch) .
Polk XT15 is 20mm shorter and 67mm less deeper than AE100 Mark II but it is also 2mm wider.
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 AE100 Mark II is approximately 412.5cm2 / 63.9inch2 and base area of the Polk XT15 is approximately 305.6cm2 / 47.4inch2. The AE100 MII requires 35% more surface area than the XT15 which gives it a small disadvantage on placement in tight spaces.