Home » Polk S50 vs S55: Which Floor Standing Speaker is Better?

Polk S50 vs S55: Which Floor Standing Speaker is Better?

You don’t need to be an audiophile to appreciate the sound of a quality speaker. In fact, most people are looking for ways to start building their home entertainment surround sound or even just add on to existing speakers.

Polk has an amazing range of speakers to suit all needs. We are going to look at two, in particular, the Polk S50 vs S55. We will cover aspects like their design, sound quality, and technology. Once we have finished, we will include a comparison chart for quick viewing and some pros and cons.

Polk S50 vs S55

On the technical side of things, there are quite a few similarities between the Polk S50 and the Polk S55, so we will start here.

Polk S50 vs S55 – Similarities

Quick Glance

All of the similarities and differences between the Polk S50 and the Polk S55 can be found side by side below.

Name
Polk Audio Signature Series S50 Floor Standing Speaker – (2) 5.25” Drivers, Stylish Looks, Big Sound, Bi-Wire & Bi-Amp, Detachable Magnetic Grille (Discontinued by Manufacturer)
Polk Audio Signature Series S55 Floor Standing Speaker – (2) 6.5” Drivers, Stylish Looks, Big Sound, Bi-Wire & Bi-Amp, Detachable Magnetic Grille (Discontinued by Manufacturer)
Image
Polk Audio Signature Series S50 Floor Standing Speaker – (2) 5.25” Drivers, Stylish Looks, Big Sound, Bi-Wire & Bi-Amp, Detachable Magnetic Grille (Discontinued by Manufacturer)
Polk Audio Signature Series S55 Floor Standing Speaker – (2) 6.5” Drivers, Stylish Looks, Big Sound, Bi-Wire & Bi-Amp, Detachable Magnetic Grille (Discontinued by Manufacturer)
Size
37.4 x 7.5 x 10.9 inches
41.5 x 8.5 x 12.5 inches
Weight
32lbs
44lbs
Speaker Type
Full range passive floor-standing loudspeaker
Full range passive floor-standing loudspeaker
Design
Curved edges and anti-diffraction, removable grille
Curved edges and anti-diffraction, removable grille
Power Port Technology
Tweeter
1-inch terylene high-res
1-inch terylene high-res
Driver
x2 5.25-inch dynamic balanced
X2 6.5-inch dynamic balanced
Crossover
Precision/ 2.5KHz frequency
Precision/ 2.5KHz frequency
Nominal Impedance
8 ohms
8 ohms
Frequency Range
33Hz to 40KHz
32Hz to 40KHz
Binding Posts
Dual gold-plated 5-way
Dual gold-plated 5-way
Maximum Wattage
150W
200W
Warranty
5-year limited
5-year limited
Prime status
-
-
Name
Polk Audio Signature Series S50 Floor Standing Speaker – (2) 5.25” Drivers, Stylish Looks, Big Sound, Bi-Wire & Bi-Amp, Detachable Magnetic Grille (Discontinued by Manufacturer)
Image
Polk Audio Signature Series S50 Floor Standing Speaker – (2) 5.25” Drivers, Stylish Looks, Big Sound, Bi-Wire & Bi-Amp, Detachable Magnetic Grille (Discontinued by Manufacturer)
Size
37.4 x 7.5 x 10.9 inches
Weight
32lbs
Speaker Type
Full range passive floor-standing loudspeaker
Design
Curved edges and anti-diffraction, removable grille
Power Port Technology
Tweeter
1-inch terylene high-res
Driver
x2 5.25-inch dynamic balanced
Crossover
Precision/ 2.5KHz frequency
Nominal Impedance
8 ohms
Frequency Range
33Hz to 40KHz
Binding Posts
Dual gold-plated 5-way
Maximum Wattage
150W
Warranty
5-year limited
Prime status
-
Name
Polk Audio Signature Series S55 Floor Standing Speaker – (2) 6.5” Drivers, Stylish Looks, Big Sound, Bi-Wire & Bi-Amp, Detachable Magnetic Grille (Discontinued by Manufacturer)
Image
Polk Audio Signature Series S55 Floor Standing Speaker – (2) 6.5” Drivers, Stylish Looks, Big Sound, Bi-Wire & Bi-Amp, Detachable Magnetic Grille (Discontinued by Manufacturer)
Size
41.5 x 8.5 x 12.5 inches
Weight
44lbs
Speaker Type
Full range passive floor-standing loudspeaker
Design
Curved edges and anti-diffraction, removable grille
Power Port Technology
Tweeter
1-inch terylene high-res
Driver
X2 6.5-inch dynamic balanced
Crossover
Precision/ 2.5KHz frequency
Nominal Impedance
8 ohms
Frequency Range
32Hz to 40KHz
Binding Posts
Dual gold-plated 5-way
Maximum Wattage
200W
Warranty
5-year limited
Prime status
-

Speaker Type and Design

The Polk S50 and the Polk S55 are full-range passive floor-standing loudspeakers. They have the iconic Polk curved edges for a stylish design. The grilles are anti-diffraction and can be removed thanks to magnetic attachments.

Power Port Technology

With Polk’s patterned Power Port Technology, the Polk S50 and the Polk S55 have a superior ‘heart-thumping’ bass sound. This is due to the small ports at the base of the speakers.

Tweeter

Speakers can have a tweeter from 0.75-inch to 1.5-inches, however, the standard size is 1 inch. The Polk S50 and the Polk S55 have 1-inch high-resolution terylene tweeters.

Crossover

Speakers rely on the crossover to convert sound information into high, low, and often mid frequencies. The Polk S50 and the Polk S55 precision crossovers with 2.5KHz frequencies.

Nominal Impedance

Not everybody considers this feature as relative to the quality of sound produced but more to the compatibility and efficient use of power. The Polk S50 and the Polk S55 are rated at 8 ohms.

Binding Posts

The Polk S50 and the Polk S55 have dual gold-plated 5-way binding posts. These binding posts enable a better connection for the speakers to receive information and power.

Warranty

The 5-year limited warranty that comes with the Polk S50 and the Polk S55 is very generous and a sign of the faith that Polk has in its products.

There are still some differences between the Polk S50 and the Polk S55 which is what will determine our overall decision.

Read next – Polk S30 vs S35: Which Center Channel Speaker is Better?

Differences Between Polk S50 and Polk S55

Appearance

Both of these floor-standing loudspeakers are black with 4 metal feet. The only thing that will tell them apart is their size.

Polk S50 comparison

Polk S50

This speaker measures 37.4 x 7.5 x 10.9 inches and weighs 32 pounds.

Polk S55

Depending on your setup, you might find the size a little too much. It is 41.5 x 8.5 x 12.5 inches and weighs 44 pounds.

The Winner Is- The Polk S50

Read next – Polk CS10 vs T30: Which Central Speakers Are Better?

Drivers

It is commonly agreed that the larger the driver, the better the bass sound, though effective crossovers can help.

Polk S50 review

Polk S50

It comes with 2 5.25-inch dynamic balance mica-reinforces polypropylene drivers.

Polk S55

The design and materials are the same, but the two drivers are 6.5 inches.

The Winner Is- The Polk S55

Read next – Polk S10 vs S15: What Are the Differences Between These 2 Speakers?

Frequency Range

It would be hard to find someone who would be able to detect the difference in the frequency range, but we like to be thorough. To put this in context, the average human ear has a frequency range of 20Hz to 20KHz.

Polk S55 Comparison

Polk S50

The frequency range is from 33Hz to 40KHz.

Polk S55

With a difference in just one number, the range is from 32Hz to 40KHz.

The Winner Is- A Tie

Maximum Power

As long as you have excellent quality speakers that are efficient, the higher the wattage the more volume you can achieve.

Polk S55 review

Polk S50

The maximum wattage for this speaker is 150W.

Polk S55

With a maximum wattage of 200W, you will be able to get more volume before you start to notice any distortion.

The Winner Is- The Polk S55

Read next – Sony SSCS3 vs Polk Audio T50: Which Floor Standing Speakers are Better?

Pros and Cons

To help with the decision, we have considered some of the pros and cons of the Polk S50 and the Polk S55.

Polk S50

Polk S50

Pros:

  • They look sleek, modern, and combine well with most other speakers
  • Nice crisp sounds
  • It’s a little bit cheaper

Cons:

  • You may need to connect to a subwoofer to really get the bass you are looking for

Polk S55

Polk S55

Pros:

  • You really notice the extra power
  • Better sound quality with highs, mids, and lows
  • Amazing value for the end results

Cons:

  • A few people have received speakers with small damages

The Final Verdict

With regards to style, the Polk S50 and the Polk S55 are both stunning speakers with and without the grille. They are large, and the Polk S55 was larger than expected even knowing the dimensions but considering the sound they produce, it was worth it. Remember that you do need to keep a space between the wall and the speaker for the best sound.

The overall winner today was the Polk S55. A lot of the specifications were the same and it was a very close call, but we did notice more power with the sounds for all types of music and the bass was that little bit richer. When watching movies, the clarity of the voices was perfect. Though you won’t go wrong with the Polk S50, the Polk S55 is worth the extra money.


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