Wharfedale Pro WLA Series User manual

Wharfedale Pro WLA Series User Manual
IPX6 Certified Line array series
WLA-28F
WLA-28SUBF
WLA-28F Common Fly Frame
www.wharfedalepro.com

Rigging, suspending and mounting should only be attempted by experience qualified
professionals. Incorrect usage can result in damage to equipment and property, injury
and even death. Under no circumstances should you attempt to rig, suspend or mount
these speakers unless you are fully qualified and certified to do so by relevant local,
state and national authorities. If you are not properly qualified or do not know of
pertinent regulations consult qualified personnel for advice. Consult a structural engineer
before suspending a speaker system and ensure that the total weight of your system can
be held by the truss or mounting surface.
• Read these instructions
• Follow these instructions
• Keep these instructions for future reference
• Heed all warnings
• Clean only with a dry cloth
• Install in accordance with these Wharfedale Pro operating instructions
• Follow the manufacturer’s operating instructions for all peripheral devices such as amplifiers and
processors
• Do not install near heat sources such as radiators, heat registers, stoves or any other apparatus that
produces heat (for example lighting systems and amplifiers)
• Use only accessories specified or supplied by Wharfedale Pro
• Do not use shielded microphone/instrument cables to connect amplifiers and speakers, use only
approved speaker cables with proper connectors
• Use caution with placement and operation of this speaker system, permanent hearing damage can
be caused by prolonged exposure to excessive sound pressure levels
• Refer all servicing to qualified professionals. Servicing is required when the loudspeaker has been
damaged in any way, such as impact damage, liquid ingress or foreign object damage. In addition
the loudspeaker should be referred to qualified service personnel if there is any kind of malfunction.
IMPORTANT WARNINGS & SAFETY INSTRUCTIONS
1
Inspect all mounting hardware before your line array is flown. If there is any damage or
distortion to any mounting hardware do not fly the array until any damaged hardware is
repaired or replaced. Only use Wharfedale Pro supplied Quick release Pins, contact your
Wharfedale Pro Distributor if any quick release pins are lost or damaged.

FEATURES
2
• Dual 8” Passive line array
• IPX6 Waterproof Certification
• Wax wrapped components
• Anti-corrosion stainless steel hardware
• Waterproof input connectors
• System Continuous Power LF:400W HF: 90 W
• System Programme Power LF:800W HF: 180 W
• System Peak Power LF:1600W HF: 360 W
• Impedance 16Ω
• 15mm / 18mm Plywood construction
WLA-28F
• Dual 15” Passive subwoofer
• IPX6 Waterproof Certification
• Wax wrapped components
• Anti-corrosion stainless steel hardware
• Waterproof input connector
• System Continuous Power 1200w
• System Programme Power 2400w
• System Peak Power 4800w
• Impedance 4Ω
• 18mm Plywood construction
WLA-28SUBF
• Stainless steel construction
• Anti-rust materials
• Fly up to 8 WLA-28F elements plus a WLA-28SUBF
• Safety factor of 12
• For flying……or ground stacking
WLA-28F Common Fly Frame
WLA-218BF - 2 x 18” subwoofer
WLA-15MF - 15” Floor monitor
Wharfedale Pro also manufacture a wide range of power amplifiers and signal processors.
For recommended accessories, amplifiers and system diagrams please visit www.wharfedalepro.com
Other IPX6 rated products from Wharfedale Pro include…..

3
CONNECTIONS
WLA-28F PARALLEL WIRING
PIN 1 LF Positive
PIN 2 LF Negative
PIN 3 Not connected
PIN 4 Not connected

4
CONNECTIONS
The WLA-28F Common Fly Frame is certified to hold a total weight (including third party hardware)
of 450KG.
Up to 8 x WLA-28F and 1 x WLA-28SUBF elements can be flown with a safety factor of 12.
Only use the Wharfedale Pro WLA-28F Common Fly Frame. Ensure that only rated, certified hardware such
as turnbuckles, shackles and chains are used.
Ensure that all truss, structures and flying hardware are capable of suspending the entire array, plus flying
hardware, to a suitable safety factor
Rigging, suspending and mounting should only be attempted by experience qualified
professionals. Incorrect usage can result in damage to equipment and property, injury
and even death. Under no circumstances should you attempt to rig, suspend or mount
these speakers unless you are fully qualified and certified to do so by relevant local,
state and national authorities. If you are not properly qualified or do not know of
pertinent regulations consult qualified personnel for advice. Consult a structural engineer
before suspending a speaker system and ensure that the total weight of your system can
be held by the truss or mounting surface.
Inspect all mounting hardware before your line array is flown. If there is any damage or
distortion to any mounting hardware do not fly the array until any damaged hardware is
repaired or replaced. Only use Wharfedale Pro supplied Quick release Pins, contact your
Wharfedale Pro Distributor if any quick release pins are lost or damaged.

5
DIMENSIONAL DRAWINGS - WLA-28F

6
DIMENSIONAL DRAWINGS - WLA-28SUBF
REAR
SIDE
FRONT
SIDE
TOP
BOTTOM

7
EXAMPLE ARRAYS
OPTIMISED GROUND STACKING
WLA-28F rigging doubles up as an optimised ground stacking system, using the WLA-28SUBF subwoofer
as a base. The array of WLA-28F line array elements can be aimed downwards by as much as 10° to
cover audience areas close to a stage, as well as upward by as much as 10° in order to better cover
distant balcony seating areas.

SPECIFICATIONS
Model Name
System Type
Configuration
Frequency Response (+/-3dB)
Frequency Range (-10dB)
Sensitivity (2.83v/1m)
Calculated Maximum SPL @1m
System Rated Impedance
Low Frequency Transducer 
Size
Voice Coil Size
Rated Impedance
LF Power (re:AES2-2012)
High Frequency Transducer
HF Driver Type
Voice Coil Size
Exit Size
Diaphragm Material
Rated Impedance
HF Power (re:AES2-2012)
Nominal Coverage (H x V)
Power   
System Continuous Power
System Programme Power
System Peak Power
Input Connector
Width Front
Enclosure Material
Hardware
Enclosure
Finish
Grille Material & Finish
Dimensions - (Unpacked)
Height Front/Height Rear
Width Rear
Depth
Dimensions - (Packed)
Height
Width Front
Width Rear
Weight
Depth
WLA-28F
Passive IPX6 waterproof
Two-way 2 x 8”
65Hz - 20kHz
60Hz - 20kHz
101dB
133dB
16Ω
51.6mm / 2.0"
2 x 203.2mm / 2 x 8"
2 x 200W
35.6mm / 1.4”
Compression Driver
75mm / 3.0"
Titanium
16Ω
100°x 10°
LF:400W HF:90 W
2 x Neutrik NLT4 MP BAG
Integral side plate adjustable
rigging 0°-10° Integral, non adjustable
760mm / 29.92"
LF:800W HF:180 W
LF:1600W HF:360 W
15mm,18mm Plywood
Waterproof Black Paint
1.5mm Black Aluminium
90W
250mm / 9.84" 181mm / 7.1"
760mm / 29.92"
463.2mm / 18.23"
320mm / 12.6"
830mm / 32.7"
830mm / 32.7"
534mm / 21.0"
WLA-28SUBF
Passive IPX6 waterproof
2 x 15" subwoofer
39Hz - 900kHz
35Hz - 1.5kHz
108dB
145dB
4Ω
100mm / 4.0''
2 x 381mm / 15''
2 x 8Ω2 x 8Ω
2 x 600W
-
-
-
-
-
-
1200W
1 x Neutrik NLT4 MP BAG
760mm / 29.9"
2400W
4800W
18mm Plywood
Waterproof Black Paint
3.0mm Black Aluminium
-
485mm / 19.1"
760mm / 29.9"
716mm / 28.2"
575mm / 22.6"
850mm / 33.5"
850mm / 33.5"
806mm / 31.7"
Net Weight (kg / lbs)
Gross Weight (kg / lbs)
28.5kg / 63.8bs
31.0kg / 69.3lbs
62.2kg / 134.6lbs
70.2kg / 145.2lbs
Crossover frequency
Operational Modes:
1.7kHz
No
No
No
8

2020
Wharfedale Pro products are warranted of manufacturing or material defects for a period
of one year from the original date of purchase. In the event of malfunction, contact your
authorised Wharfedale Pro dealer or distributor for information.
Please be aware that the warranty details may differ from country to country. Contact your
dealer or distributor for information (available at www.wharfedalepro.com). These terms do
not infringe your statutory rights.
January 2020