In this review, we will be comparing 3020i and Diamond 11.2, two Passive Bookshelf speakers from Q Acoustics and Wharfedale.
Let's have a brief look at the main features
of Q Acoustics 3020i and Wharfedale 11.2 first before getting into our more
detailed comparison.
| Key Specs | Q Acoustics 3020i | Wharfedale 11.2 |
|---|
| Brand | Q Acoustics
United Kingdom · founded 2006 | Wharfedale
United Kingdom · founded 1932 |
|---|
| Design | 2-way | 2-way |
|---|
| Tweeter | 0.9" decoupled | 1" Soft-Dome |
|---|
| Woofer | 5" Coated paper | 6.5" Woven Kevlar |
|---|
| Frequency response | 64-30k Hz | 48-20k Hz |
|---|
| Sensitivity | 88 dB | 88 dB |
|---|
| Impedance | 6 ohms | 8 ohms |
|---|
| Power range | 25-75 watts | 25-125 watts |
|---|
| Weight | 4.80kg / 10.6lbs | 9.00kg / 19.8lbs |
|---|
| Dimensions (H x W x D) | 10.9" x 6.6" x 11.1"
278.0 x 170.0 x 282.0mm | 14" x 8-3/4" x 12-5/8"
356.0 x 223.0 x 321.0mm |
|---|
What size room are the Q Acoustics 3020i and Wharfedale 11.2 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* |
Q Acoustics 3020i |
Wharfedale 11.2 |
| Near-field |
Good |
Poor |
| Small Room |
Good |
Average |
| Mid-size Room |
Average |
Good |
| Large Room |
Poor |
Average |
| Very Large Room |
No way |
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 3020i and Diamond 11.2 are 2-way speakers.
Q Acoustics 3020iWharfedale 11.2
TweeterWoofer
Front view, drawn to scale - cabinets and drivers share one scale, so sizes are directly comparable. Hover a driver for its size.
| Driver |
Q Acoustics 3020i |
Wharfedale 11.2 |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
0.9-inch
|
1-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
1 x 5-inch
|
1 x 6.5-inch
|
3020i features a 0.9" decoupled Tweeter and 1 x 5" Coated paper Woofer with a Crossover frequency at 2400Hz. On the other hand, the Diamond 11.2 features a 1" Soft-Dome Tweeter and 1 x 6.5" Woven Kevlar Woofer.
Frequency Response
3020i has a frequency range of 64-30k Hz whereas Diamond 11.2 has a frequency range of 48-20k Hz. With a minimum frequency of 48Hz, the Diamond 11.2 can go significantly deeper on the low side and provide stronger bass compared to the 3020i's min frequency of 64Hz.
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
3020i is a 6 ohms speaker compared to the Diamond 11.2 which has a nominal impedance of 8 ohms.
On the other hand, they have the same sensitivity of 88 dBdB.
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.
Diamond 11.2 can handle a max power of 125 watts RMS, whereas 3020i has a max power handling value of 75 watts RMS, 50 watts less than the Diamond 11.2.
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
3020i features Post type posts and Diamond 11.2 has a Post type posts. None of these speakers feature bi-amping/bi-wiring.
Wharfedale 11.2's Post terminals
Cabinet Type and Port Position
3020i has a rear firing port whereas Diamond 11.2 has a bottom firing ports. Wharfedale 11.2's bottom-firing port gives more flexibility in placement in regards to proximity to walls compared to Q Acoustics 3020i 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 Q Acoustics 3020i's and Wharfedale 11.2's external dimensions. Q Acoustics 3020i has external dimensions of 278.0 x 170.0 x 282.0mm (10.9 x 6.6 x 11.1inch) whereas Wharfedale 11.2 has external dimensions of 356.0 x 223.0 x 321.0mm (14 x 8-3/4 x 12-5/8inch).
Wharfedale 11.2 is clearly the larger of the two speakers. Its body is 53mm wider, 78mm taller and 39mm deeper than Q Acoustics 3020i.
Below you can see the front view size comparison of Q Acoustics 3020i and Wharfedale 11.2 in scale.
Comparison image of Q Acoustics 3020i and Wharfedale 11.2 Size and External Dimensions
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 Q Acoustics 3020i is approximately 479.4cm2 / 74.3inch2 and base area of the Wharfedale 11.2 is approximately 715.8cm2 / 110.9inch2. The 3020i requires 33% less surface area than the Diamond 11.2 which gives it a small advantage on placement in tight spaces.
Here is another comparison that shows both speakers on a BDI Octave Media Cabinet, next to a standard size amplifier and turntable in scale:
Size Comparison image of Q Acoustics 3020i and Wharfedale 11.2 on a Media Console
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 Q Acoustics 3020i weighs 4.80kg / 10.6lbs and the Wharfedale 11.2 weighs 9.00kg / 19.8lbs. This makes the Diamond 11.2 88% heavier than the 3020i.
Here is a comparison of how 3020i and Diamond 11.2's weights compare with the average, max and min weights in Passive Bookshelf class.
Weight
All Bookshelf Speakers
What's in the Box of Q Acoustics 3020i?
Here are the items that are included inside the box of 3020i:
- 2 x 3020i bookshelf speakers
- 2 x Foam Bungs
- 2 x Speaker Grilles
- 1 x User Manual
- 1 x Handling Gloves
- 8 x Rubber Speaker Grips
What's in the Box of Wharfedale 11.2?
Here are the items that come with the Diamond 11.2:
- 2 Bookshelf loudspeakers
- 2 Grilles (pre-installed)
- 8 Self-adhesive rubber feet
- User-feets Manual
- Installation Guide
 High Frequency Response |
30k Hz
vs
20k Hz
|
Generates higher frequency |
 Height |
278mm
vs
356mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
479cm2
vs
715cm2
|
Takes less floor space |
 Price per pair* |
399USD
vs
499USD
|
costs less (*prices may change depending on the seller, location and time) |
 Max Input Power |
125 watts
vs
75 watts
|
Handle more power from your amplifier |
 Nominal Impedance |
8 ohms
vs
6 ohms
|
Less selective with amplifiers |
 Woofer Size |
6.5 inches
vs
5 inches
|
Larger woofer |
|
Low Frequency Response |
48 Hz
vs
64 Hz
|
Generates deeper bass |
| General |
Q Acoustics 3020i |
Wharfedale Diamond 11.2 |
| Brand |
Q Acoustics |
Wharfedale |
| Speaker Type |
Bookshelf speakers |
Bookshelf speakers |
| Power Range |
25-75 watts |
25-125 watts |
| Sensitivity |
88 dB |
88 dB |
| Impedance |
6 ohms |
8 ohms |
| Impedance |
4 ohms |
n/a |
| Frequency Response |
64-30k Hz |
48-20k Hz |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
5" |
6.5" |
| Woofer Composition |
Coated paper |
Woven Kevlar |
| Woofer Surround Material |
Rubber |
Foam |
| Tweeter Size |
0.9" |
1" |
| Tweeter Type |
decoupled |
Soft-Dome |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Crossover Frequency |
2400Hz |
n/a |
| Firing Direction |
rear |
bottom |
Physical Specs |
|
|
| Height |
278.0mm (10.9") |
356.0mm (14") |
| Width |
170.0mm (6.7") |
223.0mm (8.8") |
| Depth |
282.0mm (11.1") |
321.0mm (12.6") |
| Weight |
4.80kg (10.6lbs) |
9.00kg (19.8lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Finish |
n/a |
MDF/Wood veneer |
| Available Colors |
Walnut, Black, White, Grey |
Rosewood, Black, White, Walnut |
| Mounting Bracket |
No |
No |
| Recommended Stand Height |
n/a |
24-28" |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Biamp Inputs |
No |
No |
Other |
|
|
| Parts Warranty |
4 Years |
5 Years |
| Labor Warranty |
4 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 | B | Wharfedale 11.2 digs deeper - 48Hz against 64Hz. |
| Amplifier needs | evenly matched | Similar sensitivity (88dB vs 88dB) - both want much the same power. |
| Amplifier match | B | Wharfedale 11.2 is the easier load at 8 ohms. |
| Headroom | B | Wharfedale 11.2 takes more power (125W vs 75W) - more in hand in a big room. |
| Size | depends | Q Acoustics 3020i is easier to place; Wharfedale 11.2 is bigger, which usually goes with fuller bass. Your room decides. |
| Expandability | depends | Neither adds bi-amping, a sub output or height drivers. Q Acoustics 3020i sits in a wider range (6 models), so a matched surround system is easier later. |
| Price | A | Q Acoustics 3020i is cheaper - $399 against $499, about 20% less. |
A Q Acoustics 3020i B Wharfedale 11.2
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?
Wharfedale 11.2 leads across most of the measured areas for a fairly modest premium, which makes it the easier pick if the budget stretches. Q Acoustics 3020i is the one to take if it does not. If a subwoofer is in your plans, the bass gap largely stops mattering - you would be crossing over above 64Hz anyway, which makes the cheaper Q Acoustics 3020i much easier to justify. Match it to your room: we rate Q Acoustics 3020i the better fit for near-field listening and a small room, and Wharfedale 11.2 for a mid-size room and a large room.
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.