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Wharfedale Diamond 12.C vs Wharfedale 12.1 Comparison

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Wharfedale Diamond 12.C

Passive Center Channel | 90-20k Hz

Wharfedale Diamond 12.C
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Wharfedale 12.1

Passive Bookshelf | 65-20k Hz

Wharfedale Diamond 12.1
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Wharfedale Diamond 12.C Wharfedale Diamond 1...
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Wharfedale 12.1 Wharfedale 12.1
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Wharfedale Diamond 1...
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Wharfedale 12.1
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Wharfedale Diamond 12.C vs Wharfedale 12.1 Speaker Comparison

In this review, we will be comparing two different type of speakers by Wharfedale. Wharfedale Diamond 12.C is a Center Channel speaker whereas the Diamond 12.1 is a Bookshelf speaker.

Let's have a brief look at the main features of Wharfedale Diamond 12.C and Wharfedale 12.1 first before getting into our more detailed comparison.

Wharfedale Diamond 12.C Key Specs

  • 2-way Design
  • 1" soft-dome Tweeter
  • 2 x 5" Klarity woofers (polypropylene and mica) Woofer
  • 90-20k Hz Frequency Response
  • 90 dB Sensitivity
  • Impedance: 8ohms
  • Power Range:20-102watts
  • Weight:8.50kg
  • Dimensions (H x W x D): 181.0" x 18-15/16" x 8-11/16"( 181.0 x 482.0 x 221.0mm )

Wharfedale 12.1 Key Specs

  • 2-way Design
  • 1" Soft-Dome Tweeter
  • 5" Mica-infused polypropylene Woofer
  • 65-20k Hz Frequency Response
  • 88 dB Sensitivity
  • Impedance: 8ohms
  • Power Range:20-100watts
  • Weight:6.80kg
  • Dimensions (H x W x D): 312.0" x 7.0" x 10.9"( 312.0 x 180.0 x 278.0mm )

Diamond 12.C and Diamond 12.1 are members of Wharfedale's Diamond 12 series of speakers. Below you can find the loudspeakers from this series.

Wharfedale Diamond 12 Series History
Model Body Frequency SensitivityImpedance Woofer
Wharfedale Diamond 12.3
  
Floor-standing 45-20k Hz 88 dB8Ω 2 x 5"
Wharfedale 12.2
  
Bookshelf 50-20k Hz 88 dB8Ω 1 x 6.5"
Wharfedale 12.0
  
Bookshelf 70-20k Hz 87 dB8Ω 1 x 4"
Wharfedale Diamond 12.4
  
Floor-standing 40-20k Hz 89 dB8Ω 2 x 6.5"
Wharfedale 12.1
Bookshelf 65-20k Hz 88 dB8Ω 1 x 5"
Wharfedale Diamond 12.C
Center Channel 90-20k Hz 90 dB8Ω 2 x 5"

What size room are the Wharfedale Diamond 12.C and Wharfedale 12.1 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 Diamond 12.C Wharfedale 12.1
Near-field Poor Average
Small Room Average Good
Mid-size Room Good Average
Large Room Average Poor
Very Large Room Poor 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.)

In the following sections, we will get into more detail in order to better understand how the Wharfedale Diamond 12.C and Wharfedale 12.1 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 Diamond 12.C and Diamond 12.1 are 2-way speakers.

Driver Wharfedale Diamond 12.C Wharfedale 12.1
Driver Setup 2-way 2-way
Tweeter 1-inch 1-inch
Midrange - -
Woofer 2 x 5-inch 1 x 5-inch

Diamond 12.C features a 1" woven polyester soft-dome Tweeter and 2 x 5" Klarity woofers (polypropylene and mica) Woofer with a Crossover frequency at 2000Hz. On the other hand, the Diamond 12.1 features a 1" Textile Soft-Dome Tweeter and 1 x 5" Mica-infused polypropylene Woofer with a Crossover frequency at 2600Hz.

Frequency Response

Diamond 12.C has a frequency range of 90-20k Hz whereas Diamond 12.1 has a frequency range of 65-20k Hz. With a minimum frequency of 65Hz, the Diamond 12.1 can go significantly deeper on the low side and provide stronger bass compared to the Diamond 12.C's min frequency of 90Hz.

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

Diamond 12.C
Diamond 12.1
Min
Average
Max
High Frequency

Center Channel Speakers

Wharfedale Diamond 12.C
Wharfedale 12.1
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

Diamond 12.C and Diamond 12.1 have the same Impedance of 8 ohms but where they differ is the sensitivity levels. Diamond 12.C sensitivity is rated at 90 dB and the Diamond 12.1's is at 88 dB. This 2 dB difference makes the Wharfedale Diamond 12.C a more sensitive speaker compared to Wharfedale 12.1, hence will play louder with the same amount of watts.

Sensitivity

Center Channel Speakers

Diamond 12.C
Diamond 12.1
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.

Diamond 12.C can handle a max power of 102 watts RMS from the amp the whereas Diamond 12.1 has a max power handling value of 100 watts RMS, 2 watts less than the Diamond 12.C.

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

Both Diamond 12.C and Diamond 12.1 features dual binding post speaker terminals for bi-amping or bi-wiring.

Wharfedale Diamond 12.C Terminals
Wharfedale Diamond 12.C's Binding post terminals allows Bi-amping or bi-wiring

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 Diamond 12.C's and Wharfedale 12.1's external dimensions. Wharfedale Diamond 12.C has external dimensions of 181.0 x 482.0 x 221.0mm ( 7-1/8 x 18-15/16 x 8-11/16inch) whereas Wharfedale 12.1 has external dimensions of 312.0 x 180.0 x 278.0mm ( 12.2 x 7.0 x 10.9inch) .

Wharfedale Diamond 12.C is 131mm shorter and 57mm less deeper than Wharfedale 12.1 but it is also 302mm 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 Diamond 12.C is approximately 1065.2cm2 / 165.1inch2 and base area of the Wharfedale 12.1 is approximately 500.4cm2 / 77.6inch2. The Diamond 12.C requires 113% more surface area than the Diamond 12.1 which gives it a small disadvantage on placement in tight spaces.

What's in the Box of Wharfedale Diamond 12.C?

Here are the items that are included inside the box of Diamond 12.C:
  • Center-channel loudspeaker
  • Grille
  • 2 Jumper-bars
  • (pre-installed)
  • 4 Self-adhesive rubber feet
  • User-feets Manual
  • What's in the Box of Wharfedale 12.1?

    Here are the items that come with the Diamond 12.1:
  • 2 Bookshelf loudspeakers
  • 2 Grilles
  • 4 Jumper-bars (pre-installed)
  • 8 Self-adhesive rubber feet
  • User-feets Manual

  • Reasons to choose Wharfedale Diamond 12.C over Wharfedale Diamond 12.1
    Max Input Power 102 watts vs 100 watts Handle more power from your amplifier
    Sensitivity 90 dB vs 88 dB Play louder with same amount of amplification power
    Number of Woofers 2 vs 1 More woofers
    Height 181mm vs 312mm Easier to fit in smaller spaces
    Price per pair* 349USD vs 449USD costs less (*prices may change depending on the seller, location and time)

    Reasons to choose Wharfedale Diamond 12.1 over Wharfedale Diamond 12.C

    Minimum Impedance 4 ohms vs 3.7 ohms Very low impedance levels puts more pressure on amplifier
    Low Frequency Response 65 Hz vs 90 Hz Generates deeper bass
    Base Surface Area 500cm2 vs 1065cm2 Takes less floor space
    Wharfedale Diamond 12.C vs Wharfedale 12.1 Specs Table
    Detailed comparison of specifications
    General Wharfedale Diamond 12.C Wharfedale Diamond 12.1
    Brand Wharfedale Wharfedale
    Speaker Type Center channel speaker Bookshelf speakers
    Power Range 20-102 watts 20-100 watts
    Sensitivity 90 dB 88 dB
    Impedance 8 ohms 8 ohms
    Impedance 3.7 ohms 4 ohms
    Frequency Response 90-20k Hz 65-20k Hz
    Drivers
    Woofer Quantity 2 1
    Woofer Size 5" 5"
    Woofer Composition Klarity woofers (polypropylene and mica) Mica-infused polypropylene
    Woofer Surround Material n/a Rubber
    Tweeter Size 1" 1"
    Tweeter Type soft-dome Soft-Dome
    Aimable Tweeter No No
    Midrange Driver No No
    Crossover Frequency 2000Hz 2600Hz
    Firing Direction n/a rear
    Physical Specs
    Height 181.0mm (7.1") 312.0mm (12.3")
    Width 482.0mm (19") 180.0mm (7.1")
    Depth 221.0mm (8.7") 278.0mm (10.9")
    Weight 8.50kg (18.7lbs) 6.80kg (15lbs)
    Enclosure Acoustic Suspension Bass Reflex
    Finish n/a MDF/Wood veneer
    Available Colors White, Walnut, Black Walnut,Black,Oak,White
    Mounting Bracket No No
    Recommended Stand Height n/a 24-28"
    Grille Yes Yes
    Moisture Resistancy No No
    Connections
    Biamp Inputs Yes Yes
    Other
    Parts Warranty 5 Years 5 years
    Labor Warranty 5 Years 5 years

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