Wharfedale Diamond 12.0i is a 2-way Passive Bookshelf speaker by Wharfedale. It was released in December 2025. It features a 1" Soft-Dome Tweeter and 1 x 4" Mica-infused polypropylene Woofer. The speaker has a frequency range of 70-20k Hz and a sensitivity of 87 dB. Wharfedale Diamond 12.0i has an MSRP of 399$ per pair but can often be found around 0$ per pair.
Wharfedale's Diamond 12 Series of Loudspeakers
Diamond 12.0i is a member of Wharfedale's Diamond 12 series of Passive speakers. Diamond 12 is the latest generation of Wharfedale's acclaimed budget Diamond range. Below you can see the main specs of these speakers.
See all 10 Wharfedale Diamond 12 models compared »
Wharfedale Diamond 12 Series Speakers
Wharfedale Diamond 12 Series Speakers
Frequency Response of the Wharfedale Diamond 12.0i Speaker
Wharfedale Diamond 12.0i has a Frequency response range of 70-20k Hz and Power Range of 20-60 watts. With a minimum frequency of 70 Hz, it is hard to expect a strong bass response from Diamond 12.0i so depending on your use case, using a subwoofer will significantly help to widen the response range.
Here we have a comparison of how Diamond 12.0i's Low frequency value compares with the average, max and min Low frequency values in its class.
Low Frequency
Bookshelf Speakers
Thinking about a subwoofer for the Wharfedale Diamond 12.0i?
Impedance and Sensitivity
Wharfedale Diamond 12.0i's nominal impedance level is
8 ohms and has a sensitivity of
87 dB.
Sensitivity
Bookshelf Speakers
8 Ohms is pretty much the standard nominal impedance amongst stereo speakers and amplifiers so Wharfedale Diamond 12.0i is not considered a difficult to drive speaker from nominal Impedance perspective.
Sensitivity
With a sensitivity level of only 87 dB, Wharfedale Diamond 12.0i is a difficult to drive speaker from Sensitivity perspective, make sure to choose an amplifier with a high output if you like listening to your music at high volume levels. You may especially have a hard time using Tube amplifiers which are traditionally very low power compared to Class A/B or Class D amps. Work out how loud the Wharfedale Diamond 12.0i plays in your room →
What amplifier does the Wharfedale Diamond 12.0i need?
At normal listening levels in a medium room, about
15–60 W
per channel into 8 ohms.
Set your own conditions and we will rank every amplifier we cover.
Prefer to browse? Integrated amplifiers under $500, or every amplifier we cover.
Input Type
Diamond 12.0i has Binding post type connectors and lets bi-amping/bi-wiring. Bi-wiring can enhance the overall transparency of your loudspeakers by using separate speaker wires for the low and high-frequency drivers from a single amplifier. Bi-amping, on the other hand, involves using separate amplifiers for the high and low-frequency drivers, potentially resulting in a greater dynamic range and reduced distortion.
Work out what gauge speaker cable this run needs →
Wharfedale Diamond 12.0i External Dimensions and Weight
Wharfedale Diamond 12.0i has external dimensions of (Height x Width x Depth) 10-1/2inch x 6-3/8inch x 8-15/16inch (267.0 x 162.0 x 228.0mm ).
Base Surface Area
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited.
The base area of Wharfedale Diamond 12.0i is approximately 369.4cm2 / 57.3inch2.
To get a better perspective on the real life size of Wharfedale Diamond 12.0i, let's compare it with a standard size Compact Disc which has a diameter of 4.7inch (120mm).
Wharfedale Diamond 12.0i Speaker Size Compared to a Compact Disc
Here we place the Wharfedale Diamond 12.0i virtually next to a standard width amplifier and turntable on a BDI Octave Media Cabinet to get a better idea about the size.
Wharfedale Diamond 12.0i Speaker next to an amplifier and turntable
Find speakers that fit your shelf or alcove → · Work out where they should sit in the room →
WeightThe Wharfedale Diamond 12.0i weighs 5.09kg / 11.2lbs per piece. Here is a comparison of how Diamond 12.0i's weight compares with the average, max and min weights in its class.
Weight
All Bookshelf Speakers
Weight
Bookshelf Speakers under $500
Available colors
Wharfedale Diamond 12.0i is available in Grey.
Wall Mounting
Diamond 12.0i doesn't sport any built-in mounting bracket, so you need an external structure to mount it on walls.
What's in the Box of Wharfedale Diamond 12.0i?
Here are the items that are included inside the box of Diamond 12.0i:
- 2 Bookshelf loudspeakers
- 2 Grilles
- 8 Self-adhesive rubber feet
- User's Manual
Recommended Accessories
Here is a list of accessories that we think you may need for the Wharfedale Diamond 12.0i.
- Speaker Cable and Connectors
- Vibration Isolators: IsoAcoustics isolators are our favorite isolators but you may find more affordable options too.
- Acoustic Panels and Treatments: Your room is as important as your stereo equipment so acoustic treatments goes a long way in improving the overall performance.
- Speaker Stands: Stands bring your bookshelf speakers to ideal height (rule of thumb is to have the tweeter level with your ear in your listening position), helps stability and acoustical isolation.
Warranty
5 Years of parts warranty and 5 Years of labor warranty is generally provided by the manufacturer.