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Wharfedale D330 vs Polk S50 Comparison

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Wharfedale D330

Passive Floor-standing | 56-20k Hz

Wharfedale D330
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Polk S50

Passive Floor-standing | 33-40k Hz

Polk Audio Signature S50
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Wharfedale D330 Wharfedale D330
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Polk S50 Polk S50
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Wharfedale D330
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Polk S50
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Wharfedale D330 vs Polk S50 Speaker Comparison

In this review, we will be comparing D330 and S50, two Passive Floor-standing speakers from Wharfedale and Polk Audio.

Let's have a brief look at the main features of Wharfedale D330 and Polk S50 first before getting into our more detailed comparison.

Wharfedale D330 Key Specs

  • 3-way Design
  • 1" Soft-Dome Tweeter
  • 5" Midrange
  • 5" Black woven Kevlar Cone Woofer
  • 56-20k Hz Frequency Response
  • 88 dB Sensitivity
  • Impedance: 8ohms
  • Power Range:25-120watts
  • Weight:18.20kg
  • Dimensions (H x W x D): 965.0" x 7.9" x 13.3"( 965 x 200 x 338mm )

Polk S50 Key Specs

  • 2-way Design
  • 1" Dome Tweeter
  • 2 x 5.25" Mica-reinforced polypropylene Woofer
  • 33-40k Hz Frequency Response
  • 89 dB Sensitivity
  • Impedance: 8ohms
  • Power Range:20-150watts
  • Weight:14.50kg
  • Dimensions (H x W x D): 951.0" x 10-5/16" x 11-1/16"( 951.0 x 262.0 x 281.0mm )

What size room are the Wharfedale D330 and Polk S50 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* Wharfedale D330 Polk S50
Near-field Bad Bad
Small Room Poor Poor
Mid-size Room Good Good
Large Room Good 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.)

In the following sections, we will get into more detail in order to better understand how the Wharfedale D330 and Polk S50 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

One of the fundamental differences between these two speakers is that D330 is a 3-way design whereas the S50 is a 2-way speaker. 3-way designs utilize a midrange driver in addition to the tweeter and woofer on 2-way designs. Designing a crossover for a 3-way speaker is a complicated process and generally increases the overall cost of the speaker.

Driver Wharfedale D330 Polk S50
Driver Setup 3-way 2-way
Tweeter 1-inch 1-inch
Midrange 1 x 5-inch -
Woofer 1 x 5-inch 2 x 5.25-inch

D330 features a 1" Soft-Dome Tweeter , a 5" Midrange and 1 x 5" Black woven Kevlar Cone Woofer . On the other hand, the S50 features a 1" Terylene Dome Tweeter and 2 x 5.25" Mica-reinforced polypropylene Woofer with a Crossover frequency at 2500Hz.

Frequency Response

D330 has a frequency range of 56-20k Hz whereas S50 has a frequency range of 33-40k Hz. With a minimum frequency of 33Hz, the S50 can go significantly deeper on the low side and provide stronger bass compared to the D330's min frequency of 40Hz.

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 Floor-standing class in our database.

Low Frequency

Floor-standing Speakers

D330
S50
Min
Average
Max
High Frequency

Floor-standing Speakers

Wharfedale D330
Polk S50
Min
Average
Max

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

D330 and S50 have the same Impedance of 8 ohms but where they differ is the sensitivity levels. D330 sensitivity is rated at 88 dB and the S50's is at 89 dB. This 1 dB difference makes the Polk S50 a more sensitive speaker compared to Wharfedale D330, hence will play louder with the same amount of watts.

Sensitivity

Floor-standing Speakers

D330
S50
Min
Average
Max

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.

D330 can handle a max power of 150 watts RMS from the amp the whereas D330 has a max power handling value of 120 watts RMS , 30 watts less than the S50.

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

S50 features 5-way post posts which make bi-amping or bi-wiring possible. D330 has a Post which doesn't feature bi-amping/bi-wiring.

Wharfedale D330 Terminals
Wharfedale D330's Post terminals

Polk S50 Terminals
Polk S50's 5-way post terminals allows Bi-amping or bi-wiring

Cabinet Type and Port Position

Both D330 and S50 have bottom firing ports.

Polk S50  Port
Polk S50 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 Wharfedale D330's and Polk S50's external dimensions. Wharfedale D330 has external dimensions of 965 x 200 x 338mm ( 38.0" x 7.9" x 13.3") whereas Polk S50 has external dimensions of 951.0 x 262.0 x 281.0mm ( 37-7/16 x 10-5/16 x 11-1/16inch) .

Polk S50 is 14mm shorter and 57mm less deeper than Wharfedale D330 but it is also 62mm 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 Wharfedale D330 is approximately 676.0cm2 / 104.8inch2 and base area of the Polk S50 is approximately 736.2cm2 / 114.1inch2. The D330 requires 8% less surface area than the S50 which gives it a small advantage 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 Wharfedale D330 weighs 18.20kg / 40lbs and the Polk S50 weighs 14.50kg / 31.9lbs. This makes the D330 26% heavier than the S50.

Here is a comparison of how D330 and S50's weights compare with the average, max and min weights in Passive Floor-standing class.

Weight
All Floor-standing Speakers
Wharfedale D330
Polk S50
Min
Average
Max

What's in the Box of Polk S50?

Here are the items that come with the S50:
  • Floorstanding loudspeaker
  • Grille (attached)
  • 4 Feet (pre-installed)
  • Owners Manual
  • Online Product Registration

  • Reasons to choose Wharfedale D330 over Polk Audio Signature S50
    Driver Setup 3-way vs 2-way Have a dedicated mid-range driver
    Base Surface Area 676cm2 vs 736cm2 Takes less floor space

    Reasons to choose Polk Audio Signature S50 over Wharfedale D330

    Max Input Power 150 watts vs 120 watts Handle more power from your amplifier
    Sensitivity 89 dB vs 88 dB Play louder with same amount of amplification power
    Woofer Size 5.25 inches vs 5 inches Larger woofer
    Number of Woofers 2 vs 1 More woofers
    Low Frequency Response 33 Hz vs 40 Hz Generates deeper bass
    High Frequency Response 40k Hz vs 20k Hz Generates higher frequency
    Bi-Amping and Bi-Wiring Yes vs No Allows bi-amping and bi-wiring connections
    Height 951mm vs 965mm Easier to fit in smaller spaces
    Wharfedale D330 vs Polk S50 Specs Table
    Detailed comparison of specifications
    General Wharfedale D330 Polk Audio Signature S50
    Brand Wharfedale Polk Audio
    Speaker Type Floor-standing speaker Floor-standing speaker
    Power Range 25-120 watts 20-150 watts
    Sensitivity 88 dB 89 dB
    Impedance 8 ohms 8 ohms
    Impedance 4.1 ohms n/a
    Frequency Response 56-20k Hz 33-40k Hz
    Drivers
    Woofer Quantity 1 2
    Woofer Size 5" 5.25"
    Woofer Composition Black woven Kevlar Cone Mica-reinforced polypropylene
    Woofer Surround Material Foamed Polyether Butyl rubber
    Tweeter Size 1" 1"
    Tweeter Type Soft-Dome Dome
    Aimable Tweeter No No
    Midrange Driver 5" No
    Crossover Frequency n/a 2500Hz
    Firing Direction bottom bottom
    Physical Specs
    Height 965.0mm (38") 951.0mm (37.4")
    Width 200.0mm (7.9") 262.0mm (10.3")
    Depth 338.0mm (13.3") 281.0mm (11.1")
    Weight 18.20kg (40lbs) 14.50kg (31.9lbs)
    Enclosure Bass Reflex Bass Reflex
    Finish MDF/Wood-grain vinyl Meddite MDF
    Available Colors Rosewood, Black, White, Walnut Black
    Grille Yes Yes
    Moisture Resistancy No No
    Connections
    Biamp Inputs No Yes
    Other
    Parts Warranty 5 Years 5 Years
    Labor Warranty 5 Years 5 Years

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