SpeakerDecision
  • SPEAKERS
    • By Type
      Passive Bookshelf Speakers Passive Floor-standing Speakers Passive Center Channel Speakers Passive In-wall Speakers All Passive Speakers Powered Subwoofers Powered Stereo Speakers
      By Brand
      Acoustic Energy Audio-Technica Audioengine Bowers Wilkins Buchardt Cambridge Cambridge Audio DALI Definitive Technology Dynaudio ELAC Emotiva Fluance Focal Genelec Golden GoldenEar Jamo JBL Kanto KEF KLH Klipsch Leak Mackie MartinLogan McIntosh Mission MoFi Monitor Monitor Audio Onkyo OSD Paradigm Polk Audio PSB Q Acoustics Revel Sonos Sonus Sonus Faber Sony SVS Technics Triangle Victrola Wharfedale
  • AMPLIFIERS
  • SMART FIND
  • BLOG

Wharfedale Diamond 12.3i vs SVS Prime Tower Comparison

x
Speaker to replace
Change

Wharfedale Diamond 12.3i

Passive Floor-standing | 45-20k Hz

Wharfedale Diamond 12.3i
CHECK PRICE
Change
    
SVS Prime Tower

Passive Floor-standing | 30-25k Hz

SVS Prime Tower
CHECK PRICE
Wharfedale Diamond 12.3i Wharfedale Diamond 1...
See at AMAZON
SVS Prime Tower SVS Prime Tower
See at AMAZON
Wharfedale Diamond 1...
See at AMAZON
SVS Prime Tower
See at AMAZON
Wharfedale Diamond 12.3i vs SVS Prime Tower Speaker Comparison

In this review, we will be comparing Wharfedale Diamond 12.3i and Prime Tower, two Passive Floor-standing speakers from Wharfedale and SVS.

Let's have a brief look at the main features of Wharfedale Diamond 12.3i and SVS Prime Tower first before getting into our more detailed comparison.

Wharfedale Diamond 12.3i Key Specs

  • 1" Soft-Dome Tweeter
  • 2 x 5" Mica-infused polypropylene Woofer
  • 45-20k Hz Frequency Response
  • 89 dB Sensitivity
  • Impedance: 8ohms
  • Power Range:30-150watts
  • Weight:19.55kg
  • Dimensions (H x W x D): 985.0" x 9-3/4" x 13-3/4"( 985.0 x 248.0 x 350.0mm )

SVS Prime Tower Key Specs

  • 3-way Design
  • 1" dome Tweeter
  • 4.5" Midrange
  • 2 x 6.5" Polypropylene Woofer
  • 4.5" Midrange
  • 30-25k Hz Frequency Response
  • 87 dB Sensitivity
  • Impedance: 8ohms
  • Power Range:20-250watts
  • Weight:18.23kg
  • Dimensions (H x W x D): 931.0" x 8" x 11-11/16"( 931.0 x 204.0 x 297.0mm )

In the following sections, we will get into more detail in order to better understand how the Wharfedale Diamond 12.3i and SVS Prime Tower 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 Wharfedale Diamond 12.3i is a -way design whereas the Prime Tower is a 3-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 Diamond 12.3i SVS Prime Tower
Driver Setup -way 3-way
Tweeter 1-inch 1-inch
Midrange - 1 x 4.5-inch
Woofer 2 x 5-inch 2 x 6.5-inch

Wharfedale Diamond 12.3i features a 1" Soft-Dome Tweeter and 2 x 5" Mica-infused polypropylene Woofer . On the other hand, the Prime Tower features a 1" aluminum dome Tweeter , a 4.5" Midrange and 2 x 6.5" Polypropylene Woofer with a Crossover frequency at 350Hz and 2100Hz.

Frequency Response

Wharfedale Diamond 12.3i has a frequency range of 45-20k Hz whereas Prime Tower has a frequency range of 30-25k Hz. With a minimum frequency of 30Hz, the Prime Tower can go significantly deeper on the low side and provide stronger bass compared to the Wharfedale Diamond 12.3i's min frequency of 45Hz.

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

Wharfedale Diamond 12.3i
Prime Tower
Min
Average
Max
High Frequency

Floor-standing Speakers

Wharfedale Diamond 12.3i
SVS Prime Tower
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

Wharfedale Diamond 12.3i and Prime Tower have the same Impedance of 8 ohms but where they differ is the sensitivity levels. Wharfedale Diamond 12.3i sensitivity is rated at 89 dB and the Prime Tower's is at 87 dB. This 2 dB difference makes the Wharfedale Diamond 12.3i a more sensitive speaker compared to SVS Prime Tower, hence will play louder with the same amount of watts.

Sensitivity

Floor-standing Speakers

Wharfedale Diamond 12.3i
Prime Tower
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.

Wharfedale Diamond 12.3i can handle a max power of 250 watts RMS from the amp the whereas Wharfedale Diamond 12.3i has a max power handling value of 150 watts RMS , 100 watts less than the Prime Tower.

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

Wharfedale Diamond 12.3i features Binding post posts which make bi-amping or bi-wiring possible. Prime Tower has a 5-Way post which doesn't feature bi-amping/bi-wiring.

SVS Prime Tower5-Way post Terminals
SVS Prime Tower's 5-Way post terminals

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 12.3i's and SVS Prime Tower's external dimensions. Wharfedale Diamond 12.3i has external dimensions of 985.0 x 248.0 x 350.0mm ( 38-3/4inch x 9-3/4inch x 13-3/4inch ) whereas SVS Prime Tower has external dimensions of 931.0 x 204.0 x 297.0mm ( 36-5/8 x 8 x 11-11/16inch) .

Wharfedale Diamond 12.3i is clearly the larger of the two speakers. Its body is 44mm wider, 54mm taller and 53mm deeper than SVS Prime Tower.

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 12.3i is approximately 868.0cm2 / 134.5inch2 and base area of the SVS Prime Tower is approximately 605.9cm2 / 93.9inch2. The Wharfedale Diamond 12.3i requires 43% more surface area than the Prime Tower 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 Diamond 12.3i weighs 19.55kg / 43lbs and the SVS Prime Tower weighs 18.23kg / 40.1lbs. This makes the Wharfedale Diamond 12.3i 7% heavier than the Prime Tower.

Here is a comparison of how Wharfedale Diamond 12.3i and Prime Tower's weights compare with the average, max and min weights in Passive Floor-standing class.

Weight
All Floor-standing Speakers
Wharfedale Diamond 12.3i
SVS Prime Tower
Min
Average
Max

What's in the Box of Wharfedale Diamond 12.3i?

Here are the items that are included inside the box of Wharfedale Diamond 12.3i:
  • 2 Floorstanding loudspeakers
  • 2 Grilles
  • 4 Outrigger feet
  • 8 Spikes (pre-installed on outrigger feet)
  • 8 Isolation pucks
  • Eight M6x25mm phillips-head screws
  • User's Manual
  • What's in the Box of SVS Prime Tower?

    Here are the items that come with the Prime Tower:
  • Floorstanding loudspeaker
  • Grille (pre-installed)
  • 4 Elastomer isolation feet (pre-installed)
  • 4 Spike feet
  • 4 Nuts
  • 4 Protective discs
  • Owners Manual
  • SVS brochure
  • Online Product Registration Card

  • Reasons to choose Wharfedale Diamond 12.3i over SVS Prime Tower
    Sensitivity 89 dB vs 87 dB Play louder with same amount of amplification power
    Bi-Amping and Bi-Wiring Yes vs No Allows bi-amping and bi-wiring connections
    Price per pair* 1198USD vs 1400USD costs less (*prices may change depending on the seller, location and time)

    Reasons to choose SVS Prime Tower over Wharfedale Diamond 12.3i

    Max Input Power 250 watts vs 150 watts Handle more power from your amplifier
    Driver Setup 3-way vs -way Have a dedicated mid-range driver
    Woofer Size 6.5 inches vs 5 inches Larger woofer
    Low Frequency Response 30 Hz vs 45 Hz Generates deeper bass
    High Frequency Response 25k Hz vs 20k Hz Generates higher frequency
    Height 931mm vs 985mm Easier to fit in smaller spaces
    Base Surface Area 605cm2 vs 868cm2 Takes less floor space
    Wharfedale Diamond 12.3i vs SVS Prime Tower Specs Table
    Detailed comparison of specifications
    General Wharfedale Diamond 12.3i SVS Prime Tower
    Brand Wharfedale SVS
    Speaker Type Floor-standing speaker Floor-standing speaker
    Power Range 30-150 watts 20-250 watts
    Sensitivity 89 dB 87 dB
    Impedance 8 ohms 8 ohms
    Frequency Response 45-20k Hz 30-25k Hz
    Drivers
    Woofer Quantity 2 2
    Woofer Size 5" 6.5"
    Woofer Composition Mica-infused polypropylene Polypropylene
    Woofer Surround Material Rubber Rubber
    Tweeter Size 1" 1"
    Tweeter Type Soft-Dome dome
    Aimable Tweeter No No
    Midrange Driver N/A" 4.5"
    Crossover Frequency n/a 350Hz and 2100Hz
    Firing Direction n/a rear
    Physical Specs
    Height 985.0mm (38.8") 931.0mm (36.7")
    Width 248.0mm (9.8") 204.0mm (8")
    Depth 350.0mm (13.8") 297.0mm (11.7")
    Weight 19.55kg (43lbs) 18.23kg (40.1lbs)
    Enclosure Bass Reflex
    Finish MDF/Vinyl MDF/Wood-grain vinyl
    Available Colors Grey Black
    Grille n/a Yes
    Moisture Resistancy No No
    Connections
    Biamp Inputs Yes No
    Other
    Parts Warranty 5 Years 5 Years
    Labor Warranty 5 Years 5 Years

    Most Popular Speakers
    Klipsch Reference R-51M
    Klipsch R-51M
    2-way | 93 dB | 8 ohms
    ELAC Debut 2.0 B6.2
    ELAC Debut 2.0 B6.2
    2-way | 87 dB | 6 ohms
    Wharfedale Elysian 2
    Wharfedale Elysian 2
    3-way | 89 dB | 4 ohms
    KEF Q150
    KEF Q150
    2-way | 86 dB | 8 ohms
    Bowers & Wilkins 606 S2 Anniversary Edition
    B&W 606 S2
    2-way | 88 dB | 8 ohms
    Klipsch Reference Premiere RP-500M
    Klipsch RP-500M
    2-way | 93 dB | 8 ohms
    Wharfedale EVO5.1
    Wharfedale EVO5.1
    2-way | 87 dB | 4 ohms
    Wharfedale EVO4.1
    Wharfedale EVO4.1
    2-way | 87 dB | 8 ohms
    Copyright © 2026 by SpeakerDecision
    About Privacy Contact US Camera Decision

    Report a Correction