WLA ACTIVE Series
USER MANUAL
WLA-28A WLA-12MA WLA-15MA WLA-28SUBA WLA-218BA

www.wharfedalepro.com

Important Warnings & Safety Instructions
Read these instructions
Follow these instructions
Keep these instructions for future reference
Heed all warnings
Do not use this system near moisture or water
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 andprocessors
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 beendamaged 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.

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. Underno 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 notproperly 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 rigging, suspending or mounting. If there is any damage
or distortion to any mounting hardware do not proceed until any damaged hardware is repairedor replaced.
UNPACKINGAll Wharfedale Pro products are fully checked before leaving our factory. After unpacking pleaseinspect the cabinets for any physical damage Please retain the shipping carton if possible andinternal packing material incase the unit ever needs to be returned. Please check as soon as
possible that the unit is functioning. In the event of any damage please contact your dealer
immediately so that a written claim for damage can be made.

1

About the WLA-A Series
The quality and durability of the well established WLA series is now available in an active series. The seriesconsists of 5 new models which are enhanced with internal DSP using FIR presets. Ethernet control alsodelivers remote system management tools through a single cable.
The line-up consists of a 2 x 8” array element, two active ﬂoor monitors, a dual 15” ﬂown subwoofer and the2400 W continuous WLA-218BA dual 18” subwoofer. A combination of products which allows for comprehensive
systems to be designed, installed and toured.
The system is also compatible with the WLA-28 Common Fly Frame and WLA-28 Dolly Frame and can also
be protected using the readily available WLA Series tourbags.
WLA-28A
WLA-28SUBA
WLA-218BA
WLA-12MA
WLA-15MA

Active 8” 2-way Bi-AmpActive 2 x 15” Subwoofer
Active 2 x 18” Subwoofer
Active 12” Monitor Bi-Amp
Active 15” Monitor Bi-Amp

750 W Continuous
2000 W Continuous
2000 W Continuous
750 W Continuous
750 W Continuous

Software control
Network connection is made using the RS485 protocol and the control software is freely downloadablefrom www.wharfedalepro.com

Dsp Presets
WLA-28A

WLA-28SUBA

WLA-218BA

WLA-12MA

WLA-15MA

For the WLA-28SUBA the AUDIENCE or STAGE presets can beused in an Inverted Stack Gradient array conﬁguration.

AC Power and Currents
When 'daisy chaining' elements with powerCON connectors, always ensure that the combined current draw
on a single power source does not exceed maximum ratings.
Model Name
Max Consumption PowerWLA-28A

WLA-12MA

WLA-15MA

WLA-28SUBA

WLA-218BA

750 W

750 W

750 W

2000 W

2200 W

8A @ 100 -240 V

8A @ 100 -240 V

Max Current Draw @ 110 - 120 V

2.5 A

2.5 A

2.5 A

Max Current Draw @ 220 - 240 V

1.25 A

1.25 A

1.25 A

2Up Close

Update port
USB Input for software update.
Service sta only.

WLA-28AXLR / 6.3 mm combi
jack balanced input

powerCON compatible
AC input
For extreme durability.

powerCON compatible
AC Link
For cascade power to otheractive loudspeakers in thesystem. DO NOT EXCEED A TOTAL OF 20
A (continuous current powerCON limit) for
each line.

Balanced Link out
For easy cascade andtidy cabling

8 x DSP Presets
Internal DSP presets including
FIR. Easy to get great results fast.

Network connections
Network connection using RS485
protocol. Download the softwarefrom www.wharfedalepro.com

WLA-12MA and WLA-15MA Monitors

35 mm pole socket
Both monitors feature a 35 mmpole socket giving completesystem versatility.

HF Output controlFor immediate hands-on control,
both monitors feature HF output
level control. + / - 3 dB

For horizontal or verticle
applications, the HF waveguideis rotatable.

3WLA-A sound system example

In A

WLA-28SUBA

WLA-28SUBA

WLA-28A x 4

WLA-28A x 4

In B
In C

WLA-218BA

WLA-218BA45In C

WLA-218BA x 4

WLA-28A x 6
WLA-15MA

In G
In F
In E
In D

In B

In A

WLA-28SUBA x 2

WLA-15MA x 2

WLA-28SUBA

WLA-12MA

WLA-15MA

WLA-28A x 6

WLA-28SUBA x 2

WLA-A sound system example

Polar Plots
WLA-28A. Horizontal

6

Polar Plots
WLA-28A. Vertical

7

Polar Plots
WLA-12MA. Horizontal

8

Polar Plots
WLA-12MA. Vertical

9

Polar Plots
WLA-15MA. Horizontal

10Polar Plots
WLA-15MA. Vertical

11

Dimensional Drawings
WLA-28A

464.0

250.0

760.0

12

Dimensional Drawings

WLA-28SUBA

760.0

485.0

775.0

WLA-218BA

1065.0

560.0

756.0

13

Dimensional Drawings
400.0

WLA-12MA

142.5

M10

47.0

658.0

372.0

WLA-15MA

178.2

433.8

47.0

723.0

432.0

14

Specifications
Model Name

WLA-28A

WLA-28SUBA

WLA-218BA

System Type

Active 8” 2-way Bi-Ampliﬁed

Active 2x15 Subwoofer

Active 2x18 Subwoofer

Frequency Response (+/-3 dB)

60 Hz - 20 KHz

39 Hz - 125 HZ

30 Hz - 100 Hz

Frequency Range (-10 dB)

65 Hz - 20 KHz

35 Hz - 163 KHz

25 Hz - 150 Hz

Loudspeaker Sensitivity @ 1 W / 1 m)

100 dB108 dB

109 dB

Maximum SPL(peak)(@1 m)

132 dB145 dB148 dB

Nominal Coverage (H x V)

100° x 10°--DSP based, 8 FIR presets resident in Input

DSP based,8 presets resident in Input

DSP based,8 presets resident in Input

Signal Processing

Preset listModuleModuleModuleA) 1 SPKR 100 Hz HPFA) FLOWNA) 1 SPKR 80 Hz LPFB) 2 to 4 SPKR 100 Hz HPFB) FLOWN with 218B) 1 SPKR 100 Hz LPFC) 4 to 8 SPKR 100 Hz HPFC) STACK

C) >2 SPKR 80 Hz LPFD) >8 SPKR 100 Hz HPFD) STACK with 218D) >2 SPKR 100 Hz LPFE) 2 to 4 SPKRE) CARDIOID AUDIENCEE) CARDIOID AUDIENCEF) 4 to 8 SPKRF) CARDIOID STAGEF) CARDIOID STAGEG) >8 SPKRG) CUSTOMG) CUSTOMH) CUSTOMH) CUSTOMH) CUSTOMClass DClass DClass D4000 W Peak / 2000 W Continuous

4000 W Peak / 2000 W Continuous

Ampliﬁers
Ampliﬁer Design

1500 W Peak (1300 W LF +Power Rating:200 W HF), 750 W Continuous(650 W LF + 100 W HF)

Power On Protection

Power switch on/oﬀ mutePower switch on/oﬀ mutePower switch on/oﬀ mute

Thermal Protection

Ampliﬁer Shut Down. Auto Reset

Ampliﬁer Shut Down. Auto Reset

Ampliﬁer Shut Down. Auto Reset

Low Line Voltage Shut Down
Driver Protection
DC and Short Protection

80% Nominal Line Voltage

80% Nominal Line Voltage

80% Nominal Line Voltage

Independent L/ H Limiters and DC

Independent L/ H Limiters and DC

Independent L/ H Limiters and DCYesYesYes

Limiter Indicator

Red LED

Red LED

Red LED

Signal Indicator

Green LED

Green LED

Green LED

Power/Active Indicator

White LEDWhite LEDWhite LED

Find Function IndicatorBlue LED

Blue LED

Blue LED

Input Sensitivity+4 dBu+4 dBu+4 dBuMaximum Input Level+18 dBu+18 dBu+18 dBu

Input Impedance
AC Power details - Power Supply

Balanced: 10 KΩ

Balanced: 10 KΩ

Balanced: 10 KΩ

High Eﬃciency Switching Mode PowerHigh Eﬃciency Switching Mode PowerHigh Eﬃciency Switching Mode PowerSupply

SupplySupplyConnectors
Input Connector

XLR 1/ 4〞Combo jack

XLR 1/ 4〞Combo jack

XLR 1/ 4〞Combo jackLink Connector

Balanced Male XLR Connector

Balanced Male XLR Connector

Balanced Male XLR Connector
USB Type B

USB Type B

USB Type B

NETWORK (RS485)

RJ45

RJ45

RJ45

AC Power Options

AC 100-120 V~/ 220-240 V~,50/60 HZ

AC 100--240 V~,50/60 HZ

AC 100--240 V~,50/60 HZ

AC Input Connector

Neutrik powerCON 20 A

Neutrik powerCON 20 A

Neutrik powerCON 20 A

AC Loop Through Connector

Neutrik powerCON 20 A

Neutrik powerCON 20 A

Neutrik powerCON 20 A

Integral side plate-UPDATE

Hardware - Rigging
Enclosure Material and ﬁnish
Colour Options

Integral side plate adjustablerigging 0°-10°
15 mm / 18 mm Plywood

15 mm / 18 mm Plywood

18 mm Plywood

Black Rhino Paint

Black Rhino Paint

Black Rhino Paint

1.5 Steel

1.5 Steel

1.5 Steel

250 mm / 9.84" 181 mm / 7.1"

485 mm / 19.1"

560 mm / 22.0"

Width (Front)

760 mm / 29.92"

760 mm / 29.9"1065 mm / 41.9"

Width (Back)

760 mm / 29.92"

760 mm / 29.9"1065 mm / 41.9"

Depth

463.2 mm / 18.23"

775 mm / 30.67"756 mm / 29.8"

Packed Dimensions - Height

320 mm / 12.6"

575 mm / 22.6"

638 mm / 25.1"

Width (Front)

830 mm / 32.7"

850 mm / 33.5"

1138 mm / 44.8"

Width (Back)

830 mm / 32.7"

850 mm / 33.5"

1138 mm / 44.8"

Depth

534 mm / 21.0"865 mm / 34.6"

829 mm / 326.0"

Net Weight (Kg / lbs)

30.2 Kg / 66.4 lbs

67.0 Kg /147.4 lbs

78.0 Kg / 171.6 lbs

Gross Weight (Kg / lbs)

32.5 Kg / 71.5 lbs

74.3 Kg /163.5 lbs

92.04 Kg / 202.4 lbs

Grille Material & Finish
Unpacked dimensions - Height15

Specifications
Model Name

WLA-12MA

WLA-15MA

System Type

Active 12” 2-way Monitor Bi-Ampliﬁed

Active 15” 2-way Monitor Bi-Ampliﬁed

Frequency Response (+/-3 dB)

55 Hz - 20 KHz

45 Hz - 20 KHz

Frequency Range (-10 dB)

50 Hz - 20 KHz

40 Hz - 20 KHz

Loudspeaker Sensitivity @ 1 W / 1 m)

98 dB

99.5 dB

Maximum SPL(peak)(@1 m)

131 dB

134 dB

Nominal Coverage (H x V)

90° x 60°

90° x 60°Signal Processing

Preset list

DSP based,8 FIR presets resident in Input DSP based,8 FIR presets resident in Input
ModuleModuleA) WEDGEA) WEDGEB) WEDGE HPFB) WEDGE HPFC) COUPLED

C) COUPLED

D) COUPLED HPFD) COUPLED HPF

E) FOHE) FOHF) FOH HPFF) FOH HPF

G) CUSTOMG) CUSTOM

H) CUSTOM

H) CUSTOM

Ampliﬁers
Ampliﬁer Design
Power Rating:Class DClass D1500 W Peak (1300 W LF +1500 W Peak (1300 W LF +200 W HF), 750 W Continuous

200 W HF), 750 W Continuous(650 W LF + 100 W HF)(650 W LF + 100 W HF)

Power On Protection

Power switch on/oﬀ mutePower switch on/oﬀ mute

Thermal Protection

Ampliﬁer Shut Down. Auto Reset

Ampliﬁer Shut Down. Auto Reset

Low Line Voltage Shut Down
Driver Protection
DC and Short Protection
Limiter Indicator

80% Nominal Line Voltage

80% Nominal Line Voltage

Independent L/ H Limiters and DC

Independent L/ H Limiters and DC

YesYes

Red LED

Red LED

Signal Indicator

Green LED

Green LED

Power/Active Indicator

White LEDWhite LED

Find Function IndicatorBlue LED

Blue LED

Input Sensitivity+4 dBu+4 dBuMaximum Input Level+18 dBu+18 dBu

Input Impedance
AC Power details - Power Supply

Balanced: 10 KΩ

Balanced: 10 KΩ

High Eﬃciency Switching Mode PowerHigh Eﬃciency Switching Mode Power

SupplySupplyConnectors
Input Connector

XLR 1/ 4〞Combo jack

XLR 1/ 4〞Combo jackLink Connector

Balanced Male XLR Connector

Balanced Male XLR Connector

USB Type B

USB Type B

UPDATENETWORK (RS485)

RJ45

RJ45

AC Power Options

AC 100-120 V~/ 220-240 V~,50/60 HZ

AC 100-120 V~/ 220-240 V~,50/60 HZ

AC Input Connector

Neutrik powerCON 20 A

Neutrik powerCON 20 A

AC Loop Through Connector

Neutrik powerCON 20 A

Neutrik powerCON 20 A

M10 x 8M10 x 8

Enclosure Material and ﬁnish

Hardware - Rigging

15 mm Plywood

15 mm Plywood

Colour Options

Black Rhino Paint

Black Rhino Paint

Grille Material & Finish

1.5 Steel

1.5 SteelUnpacked dimensions - Height658 mm / 25.9"

723 mm / 28.5"

Width (Front)

372 mm / 14.6"

432 mm / 17"433.8 mm / 17.1"

Width (Back)
Depth

400.1 mm / 15.8"

Packed Dimensions - Height

738 mm / 29.1"

808 mm / 31.8"

Width (Front)

470 mm / 18.5"

504 mm / 19.84"

Width (Back)

470 mm / 18.5"

504 mm / 19.84"

Depth

445 mm / 17.5"504 mm / 19.84"

Net Weight (Kg / lbs)

26.5 Kg / 58.3 lbs

29.6 Kg / 65.1 lbs

Gross Weight (Kg / lbs)

28.8 Kg / 63.4 lbs

32.3 Kg / 30.1 lbs

16

Installation Diagram
Figure 1
1231

WLA-28 Common Fly Frame2

WLA-28SUBA

3

WLA-28A

Figure 2123

Fly Frame and System Loads
Brackets' MAX load-bearing 450 Kg
WLA-28A weight：30.2 Kg
WLA-28SUBA weight：67.2 KgCombination as below：
WLA-28A x4+WLA-28SUBA x 1(Figure 1)

WLA-28A x8+WLA-28SUBA x 2(Figure 2)

quantity weight(Kg)
WLA-28A
4
WLA-28SUBA
1
Total weight

120.8
67
187.8

quantity weight(Kg)
WLA-28A
8
WLA-28SUBA
2
Total weight

17241.6
134375.6

Bracket Dimensional Drawings
WLA-28 Common Fly Frame
780.0
25.0
30.0

25.0

6.0
7.0

10*Ă20.0

641.0

72.0
30.0

55.0

R4.0

36.0

81.0

6.0
8.0

735.0

741.0ā0.5

766.0

134.0

50.4

38.0

115.0

Ă10.0

4.5

4.5

4.5

32.25

Ă155.02-M

5M5

Ă1107.5

4.5
Ă125.0

215.0

15.0
15.0

5.0

R1

4*

6.0

Ă10.5

5.0

2*

6.0

0.0

R1

R1

50.
Ă125.085.0

80.0

30.0.5
Ă1418

25.0
50.0

562.0

Ă2

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

2022

March 2022