In this review, we will be comparing Aria 948 and S50, two Passive Floor-standing speakers from Focal and Polk Audio.
Let's have a brief look at the main features
of Focal Aria 948 and Polk S50 first before getting into our more
detailed comparison.
Focal Aria 948 Key Specs
- 3-way Design
- 1" inverted dome Tweeter
- 6.5" Midrange
- 2 x 8.25" Flax Woofer
- 37-28k Hz Frequency Response
- 92.5 dB Sensitivity
- Impedance: 8ohms
- Power Range:50-350watts
- Weight:35.00kg
- Dimensions (H x W x D): 1150.0" x 14-5/8" x 16-9/16"( 1150.0 x 372.0 x 421.0mm )
Polk S50 Key Specs
- 2-way Design
- 1" Dome Tweeter
- 2 x 5.25" Mica-reinforced polypropylene Woofer
- 33-40k Hz Frequency Response
- 89 dB Sensitivity
- Impedance: 8ohms
- Power Range:20-150watts
- Weight:14.50kg
- Dimensions (H x W x D): 951.0" x 10-5/16" x 11-1/16"( 951.0 x 262.0 x 281.0mm )
What size room are the Focal Aria 948 and Polk S50 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* |
Focal Aria 948 |
Polk S50 |
| Near-field |
Are you nuts? |
Bad |
| Small Room |
Poor |
Poor |
| Mid-size Room |
Average |
Good |
| Large Room |
Good |
Good |
| Very Large Room |
Good |
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 Focal Aria 948 and Polk S50 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
One of the fundamental differences between these two speakers is that Aria 948 is a 3-way design whereas the S50 is a 2-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 |
Focal Aria 948 |
Polk S50 |
|
Driver Setup
|
3-way
|
2-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
1 x 6.5-inch |
- |
|
Woofer
|
2 x 8.25-inch
|
2 x 5.25-inch
|
Aria 948 features a 1" TNF Al/Mg inverted dome Tweeter , a 6.5" Midrange and 2 x 8.25" Flax Woofer with a Crossover frequency at 280Hz and 2,600Hz. On the other hand, the S50 features a 1" Terylene Dome Tweeter and 2 x 5.25" Mica-reinforced polypropylene Woofer with a Crossover frequency at 2500Hz.
Frequency Response
Aria 948 has a frequency range of 37-28k Hz whereas S50 has a frequency range of 33-40k Hz. With a minimum frequency of 33Hz, the S50 can go slightly deeper then the Aria 948's min frequency of 37Hz.
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
Aria 948 and S50 have the same Impedance of 8 ohms but where they differ is the sensitivity levels. Aria 948 sensitivity is rated at 92.5 dB and the S50's is at 89 dB. This 4 dB difference makes the Focal Aria 948 a more sensitive speaker compared to Polk S50, 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.
Aria 948 can handle a max power of 350 watts RMS from the amp the whereas S50 has a max power handling value of 150 watts RMS, 200 watts less than the Aria 948.
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.
Input Type and Bi-Amping / Bi-Wiring
S50 features 5-way post posts which make bi-amping or bi-wiring possible. Aria 948 has a Binding post which doesn't feature bi-amping/bi-wiring.
Polk S50's 5-way post terminals allows Bi-amping or bi-wiring
Polk S50 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 Focal Aria 948's and Polk S50's external dimensions. Focal Aria 948 has external dimensions of 1150.0 x 372.0 x 421.0mm ( 45-1/4 x 14-5/8 x 16-9/16inch) whereas Polk S50 has external dimensions of 951.0 x 262.0 x 281.0mm ( 37-7/16 x 10-5/16 x 11-1/16inch) .
Focal Aria 948 is clearly the larger of the two speakers. Its body is 110mm wider, 199mm taller and 140mm deeper than Polk S50.
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 Focal Aria 948 is approximately 1566.1cm2 / 242.7inch2 and base area of the Polk S50 is approximately 736.2cm2 / 114.1inch2. The Aria 948 requires 113% more surface area than the S50 which gives it a small disadvantage on placement in tight spaces.