In this review, we will be comparing two different types of speakers by Polk Audio. Polk Audio Signature Elite ES30 is a Center Channel speaker whereas the ES50 is a Floor-standing speaker.
Let's have a brief look at the main features
of Polk ES30 and Polk ES50 first before getting into our more
detailed comparison.
| Key Specs | Polk ES30 | Polk ES50 |
|---|
| Brand | Polk Audio
United States · founded 1972 | Polk Audio
United States · founded 1972 |
|---|
| Design | 2-way | 2-way |
|---|
| Tweeter | 1" High-res dome | 1" Soft-Dome |
|---|
| Woofer | 2 x 5.5" mica-reinforced polypropylene Dynamic Balance | 2 x 5.25" Mica-reinforced polypropylene |
|---|
| Frequency response | 55-40k Hz | 38-40k Hz |
|---|
| Sensitivity | 89 dB | 88 dB |
|---|
| Impedance | 8 ohms | 8 ohms |
|---|
| Power range | 20-125 watts | 40-200 watts |
|---|
| Weight | 8.64kg / 19lbs | 14.50kg / 31.9lbs |
|---|
| Dimensions (H x W x D) | 7-1/2" x 20-1/16" x 10-5/8"
191.0 x 510.0 x 270.0mm | 37-7/16" x 7-1/2" x 11-1/16"
951.0 x 191.0 x 281.0mm |
|---|
ES30 and ES50 are members of Polk Audio's Signature Elite series of speakers. Below you can find the loudspeakers from this series.
What size room are the Polk ES30 and Polk ES50 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 ES30 |
Polk ES50 |
| Near-field |
Poor |
Bad |
| Small Room |
Average |
Poor |
| Mid-size Room |
Good |
Good |
| Large Room |
Average |
Good |
| 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.)
The sections below take each area in turn: drivers, frequency response, physical size and what you get in the box.
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Drivers
Both ES30 and ES50 are 2-way speakers.
Polk ES30Polk ES50
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 ES30 |
Polk ES50 |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
2 x 5.5-inch
|
2 x 5.25-inch
|
ES30 features a 1" Terylene High-res dome Tweeter and 2 x 5.5" mica-reinforced polypropylene Dynamic Balance Woofer. On the other hand, the ES50 features a 1" Terylene High-Res Soft-Dome Tweeter and 2 x 5.25" Mica-reinforced polypropylene Woofer with a Crossover frequency at 2500Hz.
Frequency Response
ES30 has a frequency range of 55-40k Hz whereas ES50 has a frequency range of 38-40k Hz. With a minimum frequency of 38Hz, the ES50 can go significantly deeper on the low side and provide stronger bass compared to the ES30's min frequency of 55Hz.
The graph below depicts how these two speakers compare with the max, min and average Low Frequency values of other speakers in the Center Channel class in our database.
Low Frequency
Center Channel 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
ES30 and ES50 have the same Impedance of 8 ohms but where they differ is the sensitivity levels. ES30 sensitivity is rated at 89 dB and the ES50's is at 88 dB. This 1 dB difference makes the Polk ES30 a more sensitive speaker compared to Polk ES50, hence will play louder with the same amount of watts.
Sensitivity
Center Channel 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.
ES50 can handle a max power of 200 watts RMS, whereas ES30 has a max power handling value of 125 watts RMS, 75 watts less than the ES50.
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
ES50 features 5-Way post posts which make bi-amping or bi-wiring possible. ES30 has a 5-Way post which doesn't feature bi-amping/bi-wiring.
Polk ES30's 5-Way post terminals
Cabinet Type and Port Position
ES30 has a rear firing port whereas ES50 has a bottom firing ports. Polk ES50's bottom-firing port gives more flexibility in placement in regards to proximity to walls compared to Polk ES30 with its rear-firing port.
Polk ES30 Port
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 ES30's and Polk ES50's external dimensions. Polk ES30 has external dimensions of 191.0 x 510.0 x 270.0mm (7-1/2 x 20-1/16 x 10-5/8inch) whereas Polk ES50 has external dimensions of 951.0 x 191.0 x 281.0mm (37-7/16 x 7-1/2 x 11-1/16inch).
Polk ES30 is 760mm shorter and 11mm less deeper than Polk ES50 but it is also 319mm 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 Polk ES30 is approximately 1377.0cm2 / 213.4inch2 and base area of the Polk ES50 is approximately 536.7cm2 / 83.2inch2. The ES30 requires 157% more surface area than the ES50 which gives it a small disadvantage on placement in tight spaces.
What's in the Box of Polk ES30?
Here are the items that are included inside the box of ES30:
- Center-channel loudspeaker
- Grille (attached)
- 4 Self-adhesive rubber feet
- Owners Manual
- Online Product Registration
What's in the Box of Polk ES50?
Here are the items that come with the ES50:
- Floorstanding loudspeaker
- Grille (attached)
- 4 Feet (pre-installed)
- Owners Manual
- Online Product Registration