In this review, we will be comparing two different types of speakers by Polk Audio. Polk Audio T30 is a Center Channel speaker whereas the T50 is a Floor-standing speaker.
Let's have a brief look at the main features
of Polk Audio T30 and Polk Audio T50 first before getting into our more
detailed comparison.
| Key Specs | Polk Audio T30 | Polk Audio T50 |
|---|
| Brand | Polk Audio
United States · founded 1972 | Polk Audio
United States · founded 1972 |
|---|
| Design | 2-way | 2-way |
|---|
| Tweeter | 1" Soft-Dome | 1" Dome |
|---|
| Woofer | 2 x 5.25" Dynamic Balance composite | 2 x 6.5" Bi-laminate paper |
|---|
| Frequency response | 55-24k Hz | 35-40k Hz |
|---|
| Sensitivity | 90 dB | 89 dB |
|---|
| Impedance | 8 ohms | 8 ohms |
|---|
| Power range | Up to 100 watts | 25-200 watts |
|---|
| Weight | — | 15.88kg / 34.9lbs |
|---|
| Dimensions (H x W x D) | 6-1/2" x 19" x 8-1/2"
165.0 x 483.0 x 216.0mm | 40-3/8" x 9-1/4" x 12-1/2"
1026.0 x 235.0 x 318.0mm |
|---|
T30 and T50 are members of Polk Audio's T series of speakers. Below you can find the loudspeakers from this series.
What size room are the Polk Audio T30 and Polk Audio T50 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 Audio T30 |
Polk Audio T50 |
| 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.)
The sections below take each area in turn: drivers, frequency response, physical size and what you get in the box.
Drivers
Both T30 and T50 are 2-way speakers.
Polk Audio T30Polk Audio T50
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 Audio T30 |
Polk Audio T50 |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
2 x 5.25-inch
|
2 x 6.5-inch
|
T30 features a 1" Silk, with waveguide Soft-Dome Tweeter and 2 x 5.25" Dynamic Balance composite Woofer. On the other hand, the T50 features a 1" Terylene Dome Tweeter and 2 x 6.5" Bi-laminate paper Woofer with a Crossover frequency at 2700Hz.
Frequency Response
T30 has a frequency range of 55-24k Hz whereas T50 has a frequency range of 35-40k Hz. With a minimum frequency of 35Hz, the T50 can go significantly deeper on the low side and provide stronger bass compared to the T30'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
T30 and T50 have the same Impedance of 8 ohms but where they differ is the sensitivity levels. T30 sensitivity is rated at 90 dB and the T50's is at 89 dB. This 1 dB difference makes the Polk Audio T30 a more sensitive speaker compared to Polk Audio T50, 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.
T50 can handle a max power of 200 watts RMS, whereas T30 has a max power handling value of 100 watts RMS, 100 watts less than the T50.
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
T30 features 5-way post type posts and T50 has a 5-way post type posts. None of these speakers feature bi-amping/bi-wiring.
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 Audio T30's and Polk Audio T50's external dimensions. Polk Audio T30 has external dimensions of 165.0 x 483.0 x 216.0mm (6-1/2 x 19 x 8-1/2inch) whereas Polk Audio T50 has external dimensions of 1026.0 x 235.0 x 318.0mm (40-3/8 x 9-1/4 x 12-1/2inch).
Polk Audio T30 is 861mm shorter and 102mm less deeper than Polk Audio T50 but it is also 248mm wider.
Size, drawn to scale
Both speakers and both views share one scale, so everything here is directly comparable. Hover a box for its dimensions.
One scale for both, standing on the same surface and pushed back to the same wall, so the deeper one visibly sticks out further.
Polk Audio T30 needs about 40% more floor or shelf area. Polk Audio T50 is 102mm deeper, so it stands that much further out from the wall. Polk Audio T50 is 861mm taller.
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 Audio T30 is approximately 1043.3cm2 / 161.7inch2 and base area of the Polk Audio T50 is approximately 747.3cm2 / 115.8inch2. The T30 requires 40% more surface area than the T50 which gives it a small disadvantage on placement in tight spaces.