SKU: 31665338645

Wharfedale SIGMA-X18B Passive Subwoofer (Black) - 18"

Sale price$564.30 Regular price$627.00
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Ships within 48 hours · Estimated delivery Aug 13 - Aug 18

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Description

Wharfedale SIGMA-X18B Passive Subwoofer (Black) - 18"EASY INSTALL Newly designed cosmetics Rotatable HF waveguides Re evaluated performance Updated column models with HF drivers Column models with mini EVO Fold waveguides 70 V 100 V Hi Z Column models EASE gll files available for download Supported with system diagrams Supported with downloadable FIR presets Easy fixings and brackets Available in black or white durable paint finishes SIGMA X18B 500 W AES (Continuous) Parallel 1000 W Programme Parallel

EASY INSTALL

Newly designed cosmetics

  • Rotatable HF waveguides
  • Re-evaluated performance
  • Updated column models with HF drivers
  • Column models with mini EVO-Fold waveguides
  • 70 V / 100 V Hi-Z Column models
  • EASE gll files available for download
  • Supported with system diagrams 
  • Supported with downloadable FIR presets
  • Easy fixings and brackets
  • Available in black or white durable paint finishes
SIGMA-X18B
  • 500 W AES (Continuous) Parallel
  • 1000 W Programme – Parallel
  • 2000 W Peak – Parallel
  • 2.5” LF Voice coils
  • 133 dB Max SPL @ 1 m

COLUMNS WITH MINI EVO-FOLD

SIGMA-XV models feature the highly refined mini EVO-Fold waveguide along with HF compression drivers.  For the SIGMA-XV5 there is one, while the SIGMA-XV9 features two compression drivers, each with a mini EVO-Fold waveguide.

This mini EVO-Fold design provides consistent dispersion coverage on both the horizontal and vertical planes with the sound radiating from one, singular and coherent, source. 

EASY INSTALL

Installations can be complicated enough, so we have made SIGMA-X series as easy as possible.

For the SIGMA-XV Column array, either use the included U bracket, or for even more adjustment, use the optional WPB-SV which gives up to 15° tilt and 180° of rotation. 

SIGMA-X full range cabinet models all have 17 x M8 rigging points, PLUS 35 mm pole sockets. Fly or wall bracket! SIGMA-X8, X10, X12 and X15 can use the optional WPB-1 or WPB-2 wall brackets.

EASY CONNECTION

All SIGMA-X models (with the exception of the 70 V / 100 V T models) are equipped with both speakON compatible and barrier strip inputs.  It is another small step that makes the installation easy.

ROTATABLE WAVEGUIDES

SIGMA-X8, SIGMA-X10, SIGMA-X12 AND SIGMA-X15 feature a rotatable waveguide.

90° x 60° or 60° x 90°….you decide.

Specifications

System Type

Passive

Configuration

Subwoofer

Frequency Response (+/-3 dB)

35 Hz – 250 Hz

Frequency Range (-10 dB)

30 Hz – 250 Hz

Sensitivity 2.83 V / 1 m

100 dB

Calculated Maximum SPL @1 m

133 dB

System Rated Impedance

4 Ω

Low Frequency Transducer


Size (mm / inches)

457 mm / 18”

Voice Coil Size (mm / inches)

64 mm / 2.5”

Rated Impedance

4 Ω

LF Power re:AES2-2012

500 W

High Frequency Transducer


HF Driver Type

n/a

Coil Size (mm / inches)

n/a

Exit Size (mm / inches)

n/a

Diaphragm Material

n/a

Rated Impedance

n/a

HF Power re:AES2-2012

n/a

Waveguide Type


Nominal Coverage (H x V)

na

LF Driver

1 x 18″

HF Driver

n/a

Power


System Continuous Power

500 W

System Programme Power

1000 W

System Peak Power

2000 W

Crossover frequency

150 Hz

Input Connector

2 x speakON / 1x Barrier Strip

Hardware

35 mm pole socket




4 handles on sides

Enclosure


Enclosure Material

18 mm MDF

Finish

Black Paint / White Paint

Grille Material & Finish

1.2 mm steel, painted

Dimensions – Unpacked


Height

554 mm / 21.25″

Width Front

502 mm / 20″

Width Rear

502 mm / 20″

Depth

780 mm / 30.8″

Dimensions – Packed


Height

649 mm / 25.5″

Width Front

588 mm / 22.75″

Width Rear

588 mm / 22.75″

Depth

865 mm / 34″

Weight


Net Weight

39.1 kg / 86 lbs

Gross Weight

46.4 kg / 102 lbs

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 31665338645

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Laureleaves
Port Orchard, US
★★★★★ 4
Amazing product but star down on price
I desperately needed a healing lip balm for my perpetually chapped and scarred lips, and at first was skeptical that this was nothing but a glorified aquaphor, which works well enough for me but I was curious about better treatments. After some weeks of regular use, my lips feel incredible. I am sold. I only wish two things: that it was a smidgen cheaper, and that there was a version with SPF so I could have one to wear out during the day and have it’s magic working all the time.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2024
L
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LA and BM
Battle Creek, US
★★★★★ 5
Fantastic for rosacea, PD, atopic dermatitis, dry skin
I’ve been using this for close to a year and it is amazing for my super sensitive and dry skin. I have perioral dermatitis, atopic dermatitis, and rosacea and live in Minnesota with bitter cold and the heater running over half the year. Cicalfate cream doesn’t flare any of these and it helps reduce redness and completely resolves dry skin. I use about a pea size amount AM and PM,, apply to dry skin, massage in, then mist with the Avene thermal water spray. Although the cream is thick, the slight white cast absorbs within a few minutes. I do not wear foundation so I don’t know how this affects it.it doesn’t burn my eyes and I’m a contact lens wearer. A big tube of cream lasts me the better part of a year.
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Reviewed in the United States on August 28, 2025
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P. Lau
Birmingham, US
★★★★★ 5
Great for harsh winters
I was recommended this product by ChatGPT as an effective and safe product that my wife (who is currently nursing) can use. We have been very mindful of certain additives and chemicals in our products and this was able to meet our requirements. Separately in the harsh winter in the northeast, this has been extremely effective in protecting the lips
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Reviewed in the United States on January 29, 2026
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GG
West Palm Beach, US
★★★★★ 1
Ruined by Reformulation
New formula update: They ruined this product by reformulating. Used to be so hydrating, long-lasting, and the only thing that gave me relief from eczema. Now it is somehow SO drying, oily, and all around terrible. Judging by reviews here and on their website many customers are unhappy with the change. Done with Avene. Original five star review: This is a great all around lip balm, but if you struggle with perioral dermatitis/eczema then you NEED this. If I'm experiencing a flare, I slather on cicalfate+ at night but I can't exactly walk around with that during the day which is where this lip product comes in. It is calming, hydrating, and long-lasting. I have gone through more tubes than I can count. This was my first time ordering through amazon and I am happy to report I received authentic Avene.
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Reviewed in the United States on June 1, 2022
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BlackHeartNY
Fort Morgan, US
★★★★★ 5
It’s a God Send
I had a rash all around my lips and my lips got extremely dried out and started to peel. I used Avene Cicalfate Restorative Lip Cream and it really soothed my lips with the moisture they needed, and you don’t need to use a lot of this product. I plan on buying this again. Just wish the tube was bigger! I use other Avene products and I’m extremely happy with them.
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Reviewed in the United States on April 6, 2026

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