Waudio PSR-12A User manual

USER MANUAL
PSR-12A
This manual does not include all of the details of design, production, or variations of the equipment. Nor does it cover every possible
situation which may arise during installation, operation or maintenance.
The information provided in this manual was deemed accurate at the publication date.
Www.prolight.co.uk
Active Professional Two-Way
Sound Reinforcement Loudspeaker
audi

page 2 Operation Manual
Important SafetyInstructions
TO PREVENT ELECTRIC SHOCK DO NOT REM-
OVE TOP OR BOTTOM COVERS. NO USERSE-
RVICEABLE PARTSINSIDE. REFER SERVICING
TO QUALIFIED SERVICE PERSONNEL.
WATCH FOR THESE SYMBOLS:
The exclamation pointtriangle is usedto alert theuserto impo-
rtant operating ormaintenance instructions.
The lightning bolttriangle is usedto alert theuser to therisk of
electric shock.
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page 2
1) Readthese instructions.
2) Keep theseinstructions.
3) Heed allwarnings.
4) Follow allinstructions.
5) Do notuse this apparatusnear water.
6) Clean onlywith a drycloth.
7) Do notblock any ventilationopenings. Install
in accordance withthe manufacturer s instr
uctions.
8) Do notinstall near anyheat sources suchas
radiators, heat exchangers,stoves, or otherap-
paratus that produceheat.
9) Please ensurethat this apparatusis correctly
earthed at alltimes.
10) Protectthe power cordfrom being walkedon
or trapped,particularly atplugs, and thepoin-
t where theyexit from theapparatus.
11) Only useattachments/accessories specified
by the manufacturer.
12) Use onlywith a cart,stand, bracket, ortable
specified by themanufacturer,or sold with
the apparatus. Whena cart isused, use ca-
ution when movingthe cart/apparatus com-
bination to avoidinjury from tip-over.
13) Referall servicing to qualifiedservice perso
nnel.Servicing is required whenthe appara-
tus has beendamaged in anyway,such as
powersupply cord orplug is damaged,liquid
has been spilledor objects havefallen into
the apparatus, theapparatus has beenexp-
osed to rainor moisture, doesnot operate
normally,or has beendropped.
14) Toreduce the riskof fire orelectric shock, do
not expose thisapparatus to rainor moisture.

page 3
Operation Manual
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Table of Contents
Important Safety Instructions .............................................................................2
Table of Contents ......................................................................................3
Introduction ........................................................................4-5
Hookup Diagrams .....................................................................................6-7
Rear Panel Description.................................................................................8
Block Diagram...........................................................................................8
Specifications ................................................................9-10
Notes ................................................................11

page 4 Operation Manual
INTRODUCTION
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Thank you for choosing active
sound reinforcement speakers.
The PSR-12A is an active two-way
loudspeaker capable of extremely high sound
pressure levels, and designed to give you
the best performance of any loudspeaker
in its class and price range.
Our design goal was to build a sound re-
inforcement speaker with:
1.High precision, high output, and accu-
rate playback.
2.Very wide, smooth dispersion of mid and
high frequencies.
3.Ergonomically correct physical design
for easy transport and set up.
Through the combined resources of our
top-notch mechanical and analog enginee-
rs, we were able to achieve our design go-
als in every respect. The result is a sound
reinforcement system equally at home in
a concert setting, in the studio,
in the cinema, or in a home theater.
PSR-12A,Our exclusive design uses low
negative feedback, yet allows the amplifie-
rs to maintain low distortion and stability
and to quickly recover when driven into cli-
pping.
The amplifiers include the followingfeat-
ures:
The low-frequency amplifier produces
up to 600 watts peak(300 continuous)
before clipping.
The high-frequency amplifier produces
up to 100 watts peak (50 continuous)
before clipping.
Each amplifier has its own compressor
circuit that acts when the input signal
is large enough to cause clipping, disto-
rtion and excessive voice coil heat. The
compressor will automatically decrease
the input signal to a safe level. The
compressor in the low-frepuency amp
works independently from that in the
high-frequency amp.
The low-frequency amp uses servo feed-
back loop which senses the current flo-
wing in the woofer coil. This controls the
low-frequency response and maintains
low distortion at high output levels.
The low-frequency amplifier also has a
seeping filter. This will automatically
move the low cut-off frequency up or
down depending on the amplifier output.
The Transducers
The PSR-12A active speakers feature
a12-inch high -power low-frequency woofer
and a 1.75-inch titanium diaphragm high-
output precision compression driver. This
high-frequency driver is mounted on an ac-
oustically non-resonant exponential wave-
guide, providing a wide, controlled disper-
sion and precise reproduction of the criti-
cal upper mid-range and high frequencies.
The result is an unbelievably smooth off-
axis response that allows everyone in the
audience to experience the same high-
resolution audio no matter where they are
seated.
Each driver has been specifically desig-
ed by our engineers for optimum perform-
ance in the lightweight high-strength ca-
binet.
W Series Power Amplifiers

page 5
Operation Manual
Powered Speaker System
The Cabinet
The PSR-12A cabinet was designed to be
the strongest moulded composite cabinet
on the planet. This material is rigid enough
to prevent unwanted vibrations in the cab-
inet. It has built-in fly points for hanging,
and a socket in the bottom for mounting on
a tripod stand. Although it is an exceptional
choice for portable sound system use. The
asymmetrical trapezoidal design f the cabi-
net makes it easy to use as a floor wedge
for stage monitor applications.
o
The Active Advantage
There are a number of advantages to using
an active speaker system over a passive
loudspeaker:
The internal crossover is active, and its
low power circuitry operates on line-
level signals. It does not waste speaker-
level power like a passive crossover with
large coils, caps, and resistors.
The input signals are crossed over
before they reach the amplifiers, so each
amplifier only receives the correct
frequency range for its driver.
The amplifiers are designed specifically
for these speaker load impedances.
There is no guesswork as to what load
each amplifier has to drive, so they can
provide maximum acoustic output from
the speakers, yet minimize the danger
of speaker damage due to overdriving.
The connecting wires between the
amplifier outputs and the drivers are
kept to a minimum, so the damping
factor of the amplifier is not compro-
mised by the resistance of long speaker
cables. In addition, all the power from
the amplifier is transferred directly to
the drivers with no speaker cable losses
The acoustic sum of the outputs from
the two drivers is optimized electronic-
ally, as well as physically, so the output
response is flatter.
The presence of active circuits within
the speaker cabinet allow the designer
to add on extra details, such as a high
quality mic/line input section and
optional accessory modules.
In short, all the complex interconnect-
ed components in the system are designed
to work in harmony with each other to pro-
duce the best possible sound.
audi

MIXER
page 6 Operation Manual
HOOKUP DIAGRAMS
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Left Line level
output
Right Line level
output
PSR-12A STEREO OPERATION WITH A MIXER
Power:350W

page 7
Operation Manual
HOOKUP DIAGRAMS
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PSR-12A USING A MICROPHONE AND THE THRU CONNECTION
Dynamic
Microphone
For microphone connections, you can
daisy-chain up to two PSR-12A using the
MIX OUTPUT jacks as shown.
Take great care to point any microphon-
es away from the , otherwise you
may get feedback.
PSR-12A

PSR-12A BLOCK DIAGRAM
page 8 Operation Manual
REAR PANEL DESCRIPTION
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LOW-AMPLOW-AMP
HI-AMPHI-AMP
MIC 1 INPUTMIC 1 INPUT
MIC 2 INPUTMIC 2 INPUT
LINE INPUTLINE INPUT
MIX OUTPUTMIX OUTPUT
EQEQ
MUSIC ENGINEMUSIC ENGINE
Treble clip
Bass clip
Active Indicator
Microphone Input 1
Microphone Volume 1
Microphone Input 2
Microphone Volume 2
Voltage Selector
Grounded Screw
Bass Control
Treble Control
Line Volume Control
Master Volume Control
Line Input Jack
Mix Input Jack
Power Switch
IEC Socket
Fuse
10
11
12
13
14
15
16
17
18
1
2
3
4
5
6
7
8
9

page 9
Operation Manual
PSR-12A SPECIFICATIONS
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Audio
System Specifications
Frequency Response(-3dB) 50Hz-18kHz
Frequency Range(-10dB) 40Hz-20kHz
127dB
Max SPL Peak@1m
Max SPL Long-term@1m 124dB
Crossover Linkwitz-Riley,24dB/[email protected]
Horizontal Coverage
Vertical Coverage
Input Type Balanced Differential
Input Impedance 20kohms
Sensitivity
Line 0dBu
Mic -32dBu
Maximum Input Level +18dBu
Low-Cut Frequency 30HZ,Second-order filter
Operating TemperatureRange -10 C to45 C(14 Fto 113 F)
80
60
Rated Power
Rated THD
Cooling
Design
Rated Power
Rated THD
Cooling
Design
300 watts*
<0.1%
Convection Extrusion
Class G
50 watts*
<0.1%
Convection Extrusion
Class AB
Power Amplifiers
Low-Frequency Power Amplifier
Hi-Frequency Power Amplifier
*Rated power iscontinuous rms wattageinto transducer srated impedance @1kHz for theHF amplifier and@ 100 Hz
for the LFamplifier.
Transducers
Low-Frequency Transducer
Diameter
Voice Coil Diameter
Frequency Range
Sensitivity(1W@1M)
Nominal Impedance
Power Handling
12 in/300mm
3 in/75mm
45Hz-3kHz
98dB
4ohms
300 watts, program
High-Frequency Transducer
Diaphragm Diameter
Diaphragm Material
Frequency Range
Sensitivity(1W@1M)
Nominal Impedance
Power Handling
1.75 in/44.5mm
Titanium
1kHz-20kHz
106dB
8ohms
50 watts, program

PSR-12A SPECIFICATIONS
Physical Properties
Height 24.2in/615mm
Width 16.4 in/416mm
Depth 14 in/356mm
Weight 55 lb/25kg
Disclaimer
Since we arealways striving tomake our productsbetter by incorporatingnew and improvedmaterials, components,
and manufacturing methods,we reserve the rightto change thesespecifications at anytime without notice.
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page 10 Operation Manual

page 11
Operation Manual
NOTES
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