In this review, we will be comparing D320 and S10, two Passive Bookshelf speakers from Wharfedale and Polk Audio.
Let's have a brief look at the main features
of Wharfedale D320 and Polk S10 first before getting into our more
detailed comparison.
| Key Specs | Wharfedale D320 | Polk S10 |
|---|
| Brand | Wharfedale
United Kingdom · founded 1932 | Polk Audio
United States · founded 1972 |
|---|
| Design | 2-way | 2-way |
|---|
| Tweeter | 1" Soft-Dome | 1" Soft-Dome |
|---|
| Woofer | 5" Woven Kevlar | 4" Mica-reinforced polypropylene |
|---|
| Frequency response | 56-20k Hz | 67-40k Hz |
|---|
| Sensitivity | 87 dB | 87 dB |
|---|
| Impedance | 8 ohms | 8 ohms |
|---|
| Power range | 25-100 watts | 20-100 watts |
|---|
| Weight | 6.02kg / 13.2lbs | 2.73kg / 6lbs |
|---|
| Dimensions (H x W x D) | 12-5/8" x 7-1/8" x 10-7/8"
321.0 x 181.0 x 277.0mm | 8.4" x 5.0" x 6.1"
214.0 x 127.0 x 155.0mm |
|---|
What size room are the Wharfedale D320 and Polk S10 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 D320 |
Polk S10 |
| Near-field |
Average |
Average |
| Small Room |
Good |
Good |
| Mid-size Room |
Average |
Average |
| Large Room |
Poor |
Poor |
| Very Large Room |
Bad |
Bad |
(* 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 D320 and S10 are 2-way speakers.
Wharfedale D320Polk S10
TweeterWoofer
Front view, drawn to scale - cabinets and drivers share one scale, so sizes are directly comparable. Hover a driver for its size.
| Driver |
Wharfedale D320 |
Polk S10 |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
1 x 5-inch
|
1 x 4-inch
|
D320 features a 1" Soft-Dome Tweeter and 1 x 5" Woven Kevlar Woofer. On the other hand, the S10 features a 1" Terylene Soft-Dome Tweeter and 1 x 4" Mica-reinforced polypropylene Woofer with a Crossover frequency at 2500Hz.
Frequency Response
D320 has a frequency range of 56-20k Hz whereas S10 has a frequency range of 67-40k Hz. With a minimum frequency of 56Hz, the D320 can go significantly deeper on the low side and provide stronger bass compared to the S10's min frequency of 67Hz.
The graph below depicts how these two speakers compare with the max, min and average Low Frequency values of other speakers in the Bookshelf class in our database.
Low Frequency
Bookshelf 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
D320 and S10 have the same Impedance of 8 ohms and their sensitivity is also same at 87 dB.
Sensitivity
Bookshelf 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.
Both handle the same maximum of 100 watts RMS, though D320 is rated 25-100 watts and S10 20-100 watts.
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
D320 features 5-way post type posts and S10 has a 5-way post type posts. None of these speakers feature bi-amping/bi-wiring.
Wharfedale D320's Post terminals
Polk S10's 5-way post terminals
Cabinet Type and Port Position
D320 has a bottom firing port whereas S10 has a rear firing ports. Wharfedale D320's bottom-firing port gives more flexibility in placement in regards to proximity to walls compared to Polk S10 with its rear-firing 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 Wharfedale D320's and Polk S10's external dimensions. Wharfedale D320 has external dimensions of 321.0 x 181.0 x 277.0mm (12-5/8 x 7-1/8 x 10-7/8inch) whereas Polk S10 has external dimensions of 214.0 x 127.0 x 155.0mm (8.4 x 5.0 x 6.1inch).
Wharfedale D320 is clearly the larger of the two speakers. Its body is 54mm wider, 107mm taller and 122mm deeper than Polk S10.
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 D320 is approximately 501.4cm2 / 77.7inch2 and base area of the Polk S10 is approximately 196.9cm2 / 30.5inch2. The D320 requires 155% more surface area than the S10 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 Wharfedale D320 weighs 6.02kg / 13.2lbs and the Polk S10 weighs 2.73kg / 6lbs. This makes the D320 121% heavier than the S10.
Here is a comparison of how D320 and S10's weights compare with the average, max and min weights in Passive Bookshelf class.
Weight
All Bookshelf Speakers
What's in the Box of Wharfedale D320?
Here are the items that are included inside the box of D320:
- 2 Bookshelf loudspeakers
- 2 Tweeter grilles (pre-installed)
- 2 Woofer grilles (pre-installed)
- User-feets Manual
- Installation Guide
What's in the Box of Polk S10?
Here are the items that come with the S10:
- 2 Bookshelf loudspeakers
- 2 Grille (attached)
- 8 Self-adhesive rubber feet
- Wall-mount template
- Owners Manual
- Online Product Registration
 Woofer Size |
5 inches
vs
4 inches
|
Larger woofer |
|
Low Frequency Response |
56 Hz
vs
67 Hz
|
Generates deeper bass |
 High Frequency Response |
40k Hz
vs
20k Hz
|
Generates higher frequency |
 Mounting Bracket |
Yes
vs
No
|
Allows mounting on walls |
 Height |
214mm
vs
321mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
196cm2
vs
501cm2
|
Takes less floor space |
 Price per pair* |
199USD
vs
249USD
|
costs less (*prices may change depending on the seller, location and time) |
| General |
Wharfedale D320 |
Polk Audio Signature S10 |
| Brand |
Wharfedale |
Polk Audio |
| Speaker Type |
Bookshelf speakers |
Satellite speakers |
| Power Range |
25-100 watts |
20-100 watts |
| Sensitivity |
87 dB |
87 dB |
| Impedance |
8 ohms |
8 ohms |
| Impedance |
3.8 ohms |
n/a |
| Frequency Response |
56-20k Hz |
67-40k Hz |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
5" |
4" |
| Woofer Composition |
Woven Kevlar |
Mica-reinforced polypropylene |
| Woofer Surround Material |
Foamed Polyether |
Butyl rubber |
| Tweeter Size |
1" |
1" |
| Tweeter Type |
Soft-Dome |
Soft-Dome |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Crossover Frequency |
n/a |
2500Hz |
| Firing Direction |
bottom |
rear |
Physical Specs |
|
|
| Height |
321.0mm (12.6") |
214.0mm (8.4") |
| Width |
181.0mm (7.1") |
127.0mm (5") |
| Depth |
277.0mm (10.9") |
155.0mm (6.1") |
| Weight |
6.02kg (13.2lbs) |
2.73kg (6lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Finish |
MDF/Wood-grain vinyl |
Meddite MDF |
| Available Colors |
Rosewood, Black, White, Walnut |
Black |
| Mounting Bracket |
No |
Keyhole |
| Recommended Stand Height |
22-24" |
28-31" |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Biamp Inputs |
No |
No |
Other |
|
|
| Parts Warranty |
5 Years |
5 Years |
| Labor Warranty |
5 Years |
5 Years |
No single best speaker here - they are built to different priorities, and the right one depends on your room, your amplifier and what you listen to.
| Area | Better | Why |
|---|
| Bass | A | Wharfedale D320 digs deeper - 56Hz against 67Hz. |
| Amplifier needs | evenly matched | Similar sensitivity (87dB vs 87dB) - both want much the same power. |
| Headroom | evenly matched | Similar power handling (100W vs 100W). |
| Size | depends | Polk S10 is easier to place; Wharfedale D320 is bigger, which usually goes with fuller bass. Your room decides. |
| Price | B | Polk S10 is cheaper - $199 against $249, about 20% less. |
A Wharfedale D320 B Polk S10
depends neither is better in the abstract - it turns on your room, your system 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: Wharfedale D320 measures better, Polk S10 costs about about 25% more% 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 67Hz anyway, which makes the cheaper Polk S10 much easier to justify. In a large or open-plan room, Wharfedale D320 has the cabinet volume to fill it more easily; in a small room, near a wall or at desk distance, Polk S10 is the easier speaker to get right.
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.