In this review, we will be comparing CS-9040 and ES35, two Passive Center Channel speakers from Definitive Technology and Polk Audio.
Let's have a brief look at the main features
of Definitive CS-9040 and Polk ES35 first before getting into our more
detailed comparison.
Definitive CS-9040 Key Specs
- 2-way Design
- 1" dome Tweeter
- 2 x 4.5" BDSS Woofer
- 50-40k Hz Frequency Response
- 89 dB Sensitivity
- Impedance: 8ohms
- Power Range:50-200watts
- Weight:9.09kg
- Dimensions (H x W x D): 153.0" x 20-13/16" x 12"( 153.0 x 529.0 x 305.0mm )
Polk ES35 Key Specs
- 2-way Design
- 1" High-res dome Tweeter
- 6 x 3" mica-reinforced polypropylene Dynamic Balance Woofer
- 66-40k Hz Frequency Response
- 89 dB Sensitivity
- Impedance: 8ohms
- Power Range:20-150watts
- Weight:6.36kg
- Dimensions (H x W x D): 107.0" x 24-7/16" x 6-1/16"( 107.0 x 621.0 x 154.0mm )
What size room are the Definitive CS-9040 and Polk ES35 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* |
Definitive CS-9040 |
Polk ES35 |
| 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.)
In the following sections, we will get into more detail in order to better understand how the Definitive CS-9040 and Polk ES35 compare and hopefully end up with enough arguments to decide which one of these loudspeakers is the better choice for you.
**This post contains affiliate links, and I will be compensated if you make a purchase after clicking
through my links. As an Amazon Associate I earn from qualifying purchases.
Drivers
Both CS-9040 and ES35 are 2-way speakers.
| Driver |
Definitive CS-9040 |
Polk ES35 |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
2 x 4.5-inch
|
6 x 3-inch
|
CS-9040 features a 1" annealed aluminum dome Tweeter and 2 x 4.5" BDSS Woofer . On the other hand, the ES35 features a 1" Terylene High-res dome Tweeter and 6 x 3" mica-reinforced polypropylene Dynamic Balance Woofer .
Frequency Response
CS-9040 has a frequency range of 50-40k Hz whereas ES35 has a frequency range of 66-40k Hz. With a minimum frequency of 50Hz, the CS-9040 can go significantly deeper on the low side and provide stronger bass compared to the ES35's min frequency of 66Hz.
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 Center Channel class in our database.
Low Frequency
Center Channel Speakers
High Frequency
Center Channel 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
CS-9040 and ES35 have the same Impedance of 8 ohms and their sensitivity is also same at 89 dB.
Sensitivity
Center Channel 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.
CS-9040 can handle a max power of 200 watts RMS from the amp the whereas ES35 has a max power handling value of 150 watts RMS, 50 watts less than the CS-9040.
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
CS-9040 features 5-Way post type posts and ES35 has a 5-Way post type posts. None of these speakers feature bi-amping/bi-wiring.
Polk ES35's 5-Way post terminals
Polk ES35 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 Definitive CS-9040's and Polk ES35's external dimensions. Definitive CS-9040 has external dimensions of 153.0 x 529.0 x 305.0mm ( 6 x 20-13/16 x 12inch) whereas Polk ES35 has external dimensions of 107.0 x 621.0 x 154.0mm ( 4-3/16 x 24-7/16 x 6-1/16inch) .
Polk ES35 is 46mm shorter and 151mm less deeper than Definitive CS-9040 but it is also 92mm 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 Definitive CS-9040 is approximately 1613.5cm2 / 250.1inch2 and base area of the Polk ES35 is approximately 956.3cm2 / 148.2inch2. The CS-9040 requires 69% more surface area than the ES35 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 Definitive CS-9040 weighs 9.09kg / 20lbs and the Polk ES35 weighs 6.36kg / 14lbs. This makes the CS-9040 43% heavier than the ES35.
Here is a comparison of how CS-9040 and ES35's weights compare with the average, max and min weights in Passive Center Channel class.
Weight
All Center Channel Speakers
What's in the Box of Definitive CS-9040?
Here are the items that are included inside the box of CS-9040:
Center-channel loudspeakerOwners ManualWhat Obsession Sounds Like card
What's in the Box of Polk ES35?
Here are the items that come with the ES35:
LCR loudspeakerGrille (attached)4 Self-adhesive rubber feetWall-mount templateOwners ManualOnline Product Registration
 Max Input Power |
200 watts
vs
150 watts
|
Handle more power from your amplifier |
 Woofer Size |
4.5 inches
vs
3 inches
|
Larger woofer |
|
Low Frequency Response |
50 Hz
vs
66 Hz
|
Generates deeper bass |
 Passive Radiator |
upward firing one 8-inch
vs
None
|
Increases the bass performance |
|
Number of Woofers |
6
vs
2
|
More woofers |
 Height |
107mm
vs
153mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
956cm2
vs
1613cm2
|
Takes less floor space |
 Price per pair* |
399USD
vs
549USD
|
costs less (*prices may change depending on the seller, location and time) |
| General |
Definitive Technology CS-9040 |
Polk Audio Signature Elite ES35 |
| Brand |
Definitive Technology |
Polk Audio |
| Speaker Type |
Center channel speaker |
Low-profile center channel speaker |
| Power Range |
50-200 watts |
20-150 watts |
| Sensitivity |
89 dB |
89 dB |
| Impedance |
8 ohms |
8 ohms |
| Frequency Response |
50-40k Hz |
66-40k Hz |
Drivers |
|
|
| Woofer Quantity |
2 |
6 |
| Woofer Size |
4.5" |
3" |
| Woofer Composition |
BDSS |
mica-reinforced polypropylene Dynamic Balance |
| Tweeter Size |
1" |
1" |
| Tweeter Type |
dome |
High-res dome |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
N/A" |
| Firing Direction |
n/a |
rear |
Physical Specs |
|
|
| Height |
153.0mm (6") |
107.0mm (4.2") |
| Width |
529.0mm (20.8") |
621.0mm (24.4") |
| Depth |
305.0mm (12") |
154.0mm (6.1") |
| Weight |
9.09kg (20lbs) |
6.36kg (14lbs) |
| Enclosure |
Passive Radiator |
Bass Reflex |
| Finish |
n/a |
MDF, Wood-grain vinyl |
| Available Colors |
Black |
Black, Walnut, White |
| Grille |
n/a |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
5 Years |
5 Years |
| Labor Warranty |
5 Years |
5 Years |