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Wharfedale Impact 18B Passive PA Subwoofer

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Wharfedale Imapct 18B Subwoofer

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Impact 18B

The Impact 18B passive subwoofer encapsulates everything Wharfedale Pro stands for – High quality pro audio, at an affordable price. On this occasion we have raised the bar for affordable PA delivering a PA speaker series with a sound and aesthetic comparable to that of a much higher price bracket.

Deep Impact

The Impact Series has a desirable high power capacity and clarity, 500W RMS (2000W peak) of power is produced, reaching depths of 35Hz. LF drivers have been newly developed for this loudspeaker series, engineered and acoustically matched to an extremely durable plywood cabinet.

Built to take an Impact

The Impact 18B is ready for whatever life on tour throws at it. The strong wooden cabinets are covered in a textured black paint to give a durable yet stylish finish, which brings a professional look to any sound reinforcement environment. The finish is extremely hard wearing and is leagues above any other carpet covered cabinet in the same price point.

Affordable Loudspeakers You Can Trust

Everything about the Impact 18B screams ‘Premium Product’, except for the price tag and we believe that you will find it impossible to find a better sounding loudspeaker for anywhere near this price point. Not only does the Impact series represent excellent value for money, it meets are stringent quality control standards. For both dedicated sound engineers and touring musicians gigging week after week, you will be able to put your trust in the Impact series.

Key Features

500W RMS / 1000W Program / 2000W Peak
35Hz - 250Hz Frequency Response
133dB Max SPL
18" Woofer
Durable black paint finish
2 x Speakon / Thru inputs
35mm speaker pole inputs
Plywood cabinet
Newly developed high power LF driver
One of our most competative series for price vs power

Additional Information

Brand Wharfedale
Woofer 18" Woofer
Hi-pass Outputs Yes
Built-in crossover Yes
Inputs Jack, Speakon
Impedance 4 Ohms
Warranty 1 Year

- Configuration - Subwoofer
- Frequency Response (+/- 10dB) - 35Hz - 250Hz
- Power (RMS / Program / Peak) - 500W / 1000W / 2000W
- Impedance - 4Ω
- Max SPL - 133dB
- Low Frequency Transducer - 18"
- Inputs - 2 x Speakon / Thru
- Net Weight - 34.52kg / 75.9lbs
- Gross Weight - 41.2kg / 90.6 lbs
- Dimensions (H x W x D) - 526mm x 611mm x 606.5mm

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UK Deliveries

Spend over £150 and get FREE UK Delivery! (UK mainland only)

Delivery Destination Delivery Times Cost (under £150) Cost (over £150)
UK Mainland Same Day Dispatch* (1-2 working days) £4.99 Free
Ireland Same Day Dispatch* (2-5 working days) £9.99/£19.99** £9.99/£19.99**

*Applies to In Stock items. Orders placed after 2pm will be dispatched the following working day. Free next day delivery does not include Saturdays. We can arrange Saturday delivery for £10 per box (please call to order).

**Any order under 0.9kg in weight will be charged at £9.99 (ships by Royal Mail), any order 0.9kg or over will be charged at £19.99 (ships by courier).

International Deliveries

Our rates are some of the best available. To see shipping charges to your country, simply add the items to your basket, select your country and area or post code and click "Get a Quote".

For orders under 2kg in weight, we use Royal Mail (airmail insured). For orders over 2kg, we use a selection of premium couriers (TNT, UPS or FedEx). Customs charges apply for shipments to EU countries and are your responsibility to pay (read more).

Read more about delivery.


We operate an easy returns process. If you decide you don't want an item, please contact us within 7 days of delivery for a returns number. For more information, please read our return's policy.

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