Wharfedale Pro WLA-28X User manual

IMPORTANT SAFETY INSTRUCTIONS
1. READ ALL INSTRUCTIONS - carefully and become familiar with the features and functions of these products before
operating them.
2. RETAIN THESE INSTRUCTIONS - for future reference.
3. COMPLY WITH ALL WARNINGS - All warnings and instructions for this product should be adhered to.
3. RIGGING - SUSPENDING - MOUNTING - Rigging suspending or mounting of speaker systems can expose members of
the public to serious health risks and even death.
7. SERVICE - There are no user serviceable parts inside this product. Users should not attempt to service this product.
Warranty nullification could result if this is attempted.
6. CAUTION - Professional loudspeaker systems are capable of generating very high sound pressure levels. Use care with
placement and operation to avoid exposure to excessive volume levels. Permanent hearing damage can result when operated
to extreme levels.
5. CABLES - Do not use shielded or microphone cables for connection between amplifiers and speakers. Use only approved
speaker cables with proper connectors.
4. USE WITH AMPLIFIERS - In order to avoid damage to drivers and other equipment, it is advisable to establish and follow
a routine for powering up and powering down a sound system. With all system components connected, turn on source equipment
(mixers, signal processors, record and playback units, etc.) BEFORE powering up amplifiers. Transient voltages from powering
up source equipment can damage speakers if amplifiers are already turned on. Make sure that amplifier volumes are set to
their minimum settings and power up any system amplifiers LAST. It is recommended that all system components be allowed
to stabilize for several seconds before any source signals are introduced or level setting adjustments are made. Similarly, when
shutting systems down, turn all amplifiers off first, before powering down any other system components.
UNDER NO CIRCUMSTANCES ATTEMPT TO RIG, SUSPEND OR OTHERWISE MOUNT THESE SPEAKERS UNLESS YOU ARE FULLY
QUALIFIED AND CERTIFIED TO DO SO BY RELEVANT LOCAL, STATE AND NATIONAL AUTHORITIES. ALL RELEVANT SAFETY
REGULATIONS MUST BE FOLLOWED. IF YOU ARE NOT PROPERLY QUALIFIED OR DO NOT KNOW OF PERTINENT REGULATIONS,
CONSULT QUALIFIED PERSONNEL FOR ADVICE.
Congratulations on the purchase of your WLA-28X system. We take great pride in engineering and building every
Wharfedale Pro product and wish to thank you for entrusting us with your audio.
From the time Gilbert Briggs built his first loudspeaker in 1932, to the present day, we have maintained the same
standard of quality in components, workmanship and performance.
Please take the time to read this guide completely in order to get the most from your new line array.
Your full user manual can also be downloaded from www.wharfedalepro.com
WLA-28X
QUICK START GUIDE
WHARFEDALE PRO LIMITED WARRANTY
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
authorized Wharfedale Pro dealer or distributor for information.
*Be aware that warranty details may differ from country to country. Contact your dealer or distributor for information.
These terms do not infringe your statutory rights.
WHARFEDALE PROFESSIONAL
IAG House, 13/14 Glebe Road, Huntingdon, Cambridgeshire, PE29 7DL, UK
www.wharfedalepro.com
Wharfedale Professional reserves the right to alter or improve specifications without notice.
All rights reserved © 2021 Wharfedale Pro. Wharfedale Pro is a member of the IAG Group.

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
October 2021
OVERVIEW
SPECIFICATION
Model Name
System Type
Frequency Response (+/-3 dB)
Sensitivity (2.83 v / 1 m)
Calculated Maximum SPL @1 m
Nominal Coverage (H x V)
Power:
Continuous / Programme / Peak
Rated Impedance ( Ω )
WLA-28X
2 x 8” Two-way
65 Hz-20 KHz
101 dB
133 dB
100°x10°
Passive: 400 W / 800 W / 1600 W
Bi-amp LF: 400 W / 800 W / 1600 W
Bi-amp HF: 90 W / 180 W / 360 W
Passive: 16 Ω
Bi-amp LF: 16 Ω ; Bi-amp HF: 16 Ω
Connectors
HF Diaphragm Material
HF Magnet Material
LF Magnet Material
LF Frame Material
HF Coil Size (inches/mm)
LF Coil Size (inches/mm)
Crossover Frequency
Cabinet Type
Enclosure Material and finish
Enclosure Colour
Grille Material & Finish
Hardware
Net Weight (Kg)
Gross Weight (Kg)
Neutrik NL4MP
Titanium
NdFeB
Ferrite
3.0” (75 mm)
2.0” (51.6 mm)
1.7 KHz
Trapezoid
18 mm / 15 mm Plywood
Black paint
1.5 mm Steel
Integral side plate adjustable
rigging 0°-10°
Cabinet Dimensions HxWxD(mm)
Packed Dimensions HxWxD(mm) 320 x 830 x 534 mm
29.5 Kg
32.0 Kg
250 x 760 x 463.2 mm
Aluminium
KEY FEATURES:
• Dual 8” Passive line array
• Re-defined HF compression driver
• System AES (Continuous) LF: 400 W HF: 90 W
• System Programme Power LF: 800 W HF: 180 W
• System Peak Power LF: 1600 W HF: 360 W
• Impedance 16 Ω
• 15 mm / 18 mm Plywood construction
Frequency
Impedance
760.0
250.0
463.2
PASSIVE
MODE
BI-AMP
MODE
CROSSOVER BLOCK DIAGRAM