In this review, we will be comparing S60 and S55, two Passive Floor-standing speakers by Polk Audio.
Let's have a brief look at the main features
of Polk S60 and Polk S55 first before getting into our more
detailed comparison.
| Key Specs | Polk S60 | Polk S55 |
|---|
| Design | 2-way | 2-way |
|---|
| Tweeter | 1" Dome | 1" Dome |
|---|
| Woofer | 3 x 6.5" Mica-reinforced polypropylene | 2 x 6.5" Mica-reinforced polypropylene |
|---|
| Frequency response | 26-40k Hz | 32-40k Hz |
|---|
| Sensitivity | 90 dB | 90 dB |
|---|
| Impedance | 8 ohms | 8 ohms |
|---|
| Power range | 20-300 watts | 20-200 watts |
|---|
| Weight | 23.60kg / 51.9lbs | 20.00kg / 44lbs |
|---|
| Dimensions (H x W x D) | 44-1/2" x 11-3/4" x 15-3/4"
1131.0 x 299.0 x 401.0mm | 41-9/16" x 11-3/4" x 12-3/8"
1056.0 x 299.0 x 315.0mm |
|---|
S60 and S55 are members of Polk Audio's Signature S series of speakers. Below you can find the loudspeakers from this series.
What size room are the Polk S60 and Polk S55 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* |
Polk S60 |
Polk S55 |
| Near-field |
Bad |
Bad |
| Small Room |
Poor |
Poor |
| Mid-size Room |
Average |
Good |
| Large Room |
Good |
Good |
| Very Large Room |
Average |
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.
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through our links. As an Amazon Associate I earn from qualifying purchases.
Drivers
Both S60 and S55 are 2-way speakers.
Polk S60Polk S55
TweeterWoofer
Front view, drawn to scale - cabinets and drivers share one scale, so sizes are directly comparable. Hover a driver for its size.
| Driver |
Polk S60 |
Polk S55 |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
3 x 6.5-inch
|
2 x 6.5-inch
|
S60 features a 1" Terylene Dome Tweeter and 3 x 6.5" Mica-reinforced polypropylene Woofer with a Crossover frequency at 2500Hz. On the other hand, the S55 features a 1" Terylene Dome Tweeter and 2 x 6.5" Mica-reinforced polypropylene Woofer with a Crossover frequency at 2500Hz.
Frequency Response
S60 has a frequency range of 26-40k Hz whereas S55 has a frequency range of 32-40k Hz. With a minimum frequency of 26Hz, the S60 can go significantly deeper on the low side and provide stronger bass compared to the S55's min frequency of 32Hz.
The graph below depicts how these two speakers compare with the max, min and average Low Frequency values of other speakers in the Floor-standing class in our database.
Low Frequency
Floor-standing Speakers
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
S60 and S55 have the same Impedance of 8 ohms and their sensitivity is also same at 90 dB.
Sensitivity
Floor-standing Speakers
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.
S60 can handle a max power of 300 watts RMS, whereas S55 has a max power handling value of 200 watts RMS, 100 watts less than the S60.
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.
Input Type and Bi-Amping / Bi-Wiring
Both S60 and S55 features dual binding post speaker terminals for bi-amping or bi-wiring.
Polk S60's 5-way post terminals allows Bi-amping or bi-wiring
Polk S55's 5-way post terminals allows Bi-amping or bi-wiring
Cabinet Type and Port Position
Both S60 and S55 have bottom firing ports.
Polk S60 Port
Polk S55 Port
New
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 Polk S60's and Polk S55's external dimensions. Polk S60 has external dimensions of 1131.0 x 299.0 x 401.0mm (44-1/2 x 11-3/4 x 15-3/4inch) whereas Polk S55 has external dimensions of 1056.0 x 299.0 x 315.0mm (41-9/16 x 11-3/4 x 12-3/8inch).
Below you can see the front view size comparison of Polk S60 and Polk S55 in scale.
Comparison image of Polk S60 and Polk S55 Size and External Dimensions
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 Polk S60 is approximately 1199.0cm2 / 185.8inch2 and base area of the Polk S55 is approximately 941.9cm2 / 146.0inch2. The S60 requires 27% more surface area than the S55 which gives it a small disadvantage on placement in tight spaces.
Weight Comparison The weight of a loudspeaker can become an important factor if you need to move and reposition the unit often. Weight of a speaker can also "sometimes" be an indicator of the rigidity of the enclosure and the quality of the internal components used. The Polk S60 weighs 23.60kg / 51.9lbs and the Polk S55 weighs 20.00kg / 44lbs. This makes the S60 18% heavier than the S55.
Here is a comparison of how S60 and S55's weights compare with the average, max and min weights in Passive Floor-standing class.
Weight
All Floor-standing Speakers
What's in the Box of Polk S60?
Here are the items that are included inside the box of S60:
- Floorstanding loudspeaker
- Grille (attached)
- 4 Feet (pre-installed)
- Owners Manual
- Online Product Registration
What's in the Box of Polk S55?
Here are the items that come with the S55:
- Floorstanding loudspeaker
- Grille (attached)
- 4 Feet (pre-installed)
- Owners Manual
- Online Product Registration
 Max Input Power |
300 watts
vs
200 watts
|
Handle more power from your amplifier |
 Number of Woofers |
3
vs
2
|
More woofers |
|
Low Frequency Response |
26 Hz
vs
32 Hz
|
Generates deeper bass |
 Height |
1056mm
vs
1131mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
941cm2
vs
1199cm2
|
Takes less floor space |
 Price per pair* |
658USD
vs
898USD
|
costs less (*prices may change depending on the seller, location and time) |
| General |
Polk Audio Signature S60 |
Polk Audio Signature S55 |
| Brand |
Polk Audio |
Polk Audio |
| Speaker Type |
Floor-standing speaker |
Floor-standing speaker |
| Power Range |
20-300 watts |
20-200 watts |
| Sensitivity |
90 dB |
90 dB |
| Impedance |
8 ohms |
8 ohms |
| Frequency Response |
26-40k Hz |
32-40k Hz |
Drivers |
|
|
| Woofer Quantity |
3 |
2 |
| Woofer Size |
6.5" |
6.5" |
| Woofer Composition |
Mica-reinforced polypropylene |
Mica-reinforced polypropylene |
| Woofer Surround Material |
Butyl rubber |
Butyl rubber |
| Tweeter Size |
1" |
1" |
| Tweeter Type |
Dome |
Dome |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Crossover Frequency |
2500Hz |
2500Hz |
| Firing Direction |
bottom |
bottom |
Physical Specs |
|
|
| Height |
1131.0mm (44.5") |
1056.0mm (41.6") |
| Width |
299.0mm (11.8") |
299.0mm (11.8") |
| Depth |
401.0mm (15.8") |
315.0mm (12.4") |
| Weight |
23.60kg (51.9lbs) |
20.00kg (44lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Finish |
Meddite MDF |
Meddite MDF |
| Available Colors |
Black |
Black |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Biamp Inputs |
Yes |
Yes |
Other |
|
|
| Parts Warranty |
5 Years |
5 Years |
| Labor Warranty |
5 Years |
5 Years |
Siblings in Polk Audio's Signature S series, so they share a family sound. It comes down to size, output and price.
| Area | Better | Why |
|---|
| Bass |
A |
Polk S60 digs deeper - 26Hz against 32Hz. A subwoofer would even that out. |
| Amplifier needs |
evenly matched |
Similar sensitivity (90dB vs 90dB) - both want much the same power. |
| Headroom |
A |
Polk S60 takes more power (300W vs 200W) - more in hand in a big room. |
| Size |
depends |
Polk S55 is easier to place; Polk S60 is bigger, which usually goes with fuller bass. Your room decides. |
| Expandability |
depends |
Polk S60: bi-amping; Polk S55: bi-amping. |
| Price |
B |
Polk S55 is cheaper - $658 against $898, about 27% less. |
A Polk S60
B Polk S55
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: Polk S60 measures better, Polk S55 costs about 27% 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 32Hz anyway, which makes the cheaper Polk S55 much easier to justify. Match it to your room: we rate Polk S60 the better fit for a very large room, and Polk S55 for a mid-size 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.