Delta F18B

Our passive, single 18" folded horn subwoofer delivering a massive 141dB (max SPL) .

Delta F18B is supplied with castors so is a surprisingly portable and easily moveable enclosure.  Where significant extension of low frequency output of a sound system is required over middle-long distances the addition of one or more Delta F18B subwoofers will provide high output low frequency enhancement to the overall sound system.

The folded horn design enables the Delta F18B to deliver ground shaking low frequencies over long distances (Unlike direct radiating designs which provide near to middle distance sound).

The Delta F18B is designed to work with an external, active crossover unit. 
 

Key Features

  • 3200w Peak, 1600w Programme, 800w RMS
  • 141dB Max SPL
  • 8Ω Impedance
  • Folded horn design for long throw low end
  • 30Hz - 300Hz Frequency response
  • 2 x Parallel speakON compatible Inputs
  • Rhino Rock textured black paint finish
  • 18mm Plywood construction
  • 4 x 4-way high impact plastic handles
  • Supplied with 4 robust castors
  • Integral 35mm pole socket

  • 3200w Peak, 1600w Programme, 800w RMS
  • 141dB Max SPL
  • 8Ω Impedance
  • Folded horn design for long throw low end
  • 30Hz - 300Hz Frequency response
  • 2 x Parallel speakON compatible Inputs
  • Rhino Rock textured black paint finish
  • 18mm Plywood construction
  • 4 x 4-way high impact plastic handles
  • Supplied with 4 robust castors
  • Integral 35mm pole socket

4" Voice coil
To deliver the ground shaking 141dB Max SPL, the Delta F18B features a custom designed 18" transducer.

Using an aluminium die-cast basket, this transducer has a massive 4" voice coil which handles up to 3200w peak power.

Simply put, this custom Wharfedale Pro transducer is the heart of the F18B - giving it enormous low end power.
Folded horn design
The folded horn design enables the Delta F18B to deliver ground shaking low frequencies over long distances (Unlike direct radiating designs which provide near to middle distance sound).

Internal baffles tune and guide the low frequencies to deliver more throw and bass distance than you have experienced before.
Hardware enclosure
The magic of the Delta F18B happens inside with its folded horn design but, externally, the F18B also features practical hardware features.

Delta F18B is supplied with four (4) sturdy and robust castors so is a surprisingly portable and easily moveable enclosure.

There are also 4 carry handles placed top and bottom to help move this subwoofer into the best location.

On the top surface there is even a standard 35mm pole socket allowing for a full range loudspeaker to be placed on a pole.

SPECIFICATIONS

Model Name Delta F18B
System Type Passive
Configuration Folded horn subwoofer
Frequency response (+/-3dB) 30Hz - 300Hz
Sensitivity (2.83v/1m) 106dB
Calculated Max SPL@1m 141dB
System rated impedance
Low Frequency Transducer
Size 470mm / 18"
Voice coil size 102mm / 4"
Rated impedance
LF Power (re:AES2-2012) 800w
Power
System continuous power 800w
System programme power 1600w
System peak power 3200w
Input connector 2 x NL4 (speakON compatible)
Hardware
Pole mount 35mm
Handles 4 on sides
Enclosure
Material 18mm plywood
Dimensions - unpacked
Height 914mm / 36"
Width front 609.6mm / 24"
Width rear 609.6mm / 24"
Depth 914mm / 36"
Dimensions - packed
Height 1009mm / 39.72"
Width front 689mm / 27.12"
Width rear 689mm / 27.12"
Depth 994mm / 39.13"
Weight
Net weight 80.5kg / 177.1lbs
Gross weight 85.2kg / 187.44lbs
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