Shure PRO MASTER 706 User manual

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The Features ...
you find most useful.. . pre-fader monitor..,200-watt
power amp...exclusive FEEDBACK FINDER'"and
PATCH BLOCK'"
The Reliability ...
you needfordemanding,continuous operation
The Quality...
you'vecometo expect from Shure
CONTENTS
Introduction..
.................................. 3
Controls Connectors Indicators ............... 4
Input Channels ................................ 4
Aux Inputs .................................... 5
Status Indicators ............................... 5
Headphones .................................. 5
DB Peak Indicators ............................. 6
FEEDBACK FINDERT" .......................... 6
Graphic Equalizer. ....... ... 6
Master Controls ................................ 7
Speaker and Power Panel .......................
8
PATCH BLOCK'" Rear Panel ..................... 9
Setups ........................................ .11
Operation ..................................... .14
Maintenance .................................. .14
Troubleshooting ............................... .15
Specifications ................................. .I 6
Speaker Systems ............ .. .17
.....................
Speakers and Accessories .18
Guarantee ..................................... .18
Shipping Instructions .......................... .18
WARNING
To prevent a source of fire or electric shock, do not
expose thisappliance to rainor extrememoisture.

Introducingthe Shure
PRO MRST€RTMPower Console Model
706
. . .aportable, high-power,8-input monophonic mixer- Just look at these features-
amplifier combining the powerand versatility Full200-watt power amplifier
demanded by professionaluserswith the ease of
operationof amuchsmaller,simpler unit.The resultof Six high-impedanceand six balanced low-
years of design concept study and evaluation,the impedance mic inputs
plus two aux inputs plus EQ
PRO MASTER handles any sound job dependably, and PA (power amp) inputs
andwiththevery highestquality.Itcombinessuperior
performancewith a relativelymodest price. It is ideal Six input channels for microphones and aux level
for such diverse applicationsas schools, churches, sources with full controls: volume,attenuation,fre-
hotel and motel meeting rooms,nightclubs,audito- quency equalization, effectsheverb, and monitor
riums-anywhere goodsound is vital, regardless High-and low-impedanceinputs may be used
of room size. simultaneouslv
The PRO MASTER isanallsolid-stateunit,employing
'thelatestdevelopments in highly reliableintegrated Two additional aux channels with volumecontrols
circuit,discrete component,and printedwiring Fullmastercontrols: monitor,volume, effects send,
technology It'seasyto set upand operate-no sepa- reverb return,and reverbhigh-and low-frequency
rate power amps, equalizers or reverb are required. eaualization
And connecting accessory equipment is fast and
convenient.
The PRO MASTER is fullof featuresfor super Outputs for all needs:monitor,effects,headphones,
aux, mic, and speakers (2)
performance and super convenience-the unique Two common mix buses:mix output and equalizer
FEEDBACK FINDER'" helpsmaximizegain before out~ut
feedback,makesfeedback locationandsuppression
fast and easy...exclusivePATCH BLOCK'" rear panel
showsyouwhere you'repatching,helpsyouconstruct
complex circuits using simple patchcords...efficient
"windtunnel" power amp design hastemperature
warning and shutdown LEDindicators.
Itsversatile control panel is human-engineered for
easeof operation: an experienced user can always
get the mostfrom it,even inthe dimmest auditorium,
meeting room,or club,and a beginning user can
operate iteffectively,with minimumindoctrination and
with completeconfidence. It'spackaged in a hand-
some, rugged,lightweight,moldedARMO-DUR@
case complete with carrying handleand line
cord storage.
Incombinationwith Shure's PRO MASTER Speaker
Svstems,vou've aot a sound reinforcementsvstem
Balanced mic output for "house"systems
Unique FEEDBACK FINDERwith LED readout
instantlyidentifiesfeedback frequency bands
10-bandgraphic equalizer with minimum phase,
combining-typefilters. Lowestfilter is -12 dB/
octavecut-only switch;othersare 213dBadjustable
Exclusive PATCH BLOCK rear panel showsyou
where to patch-jacks are located right inthe block
diagram
Built-inreverb unit with provisionsfor externalonloff
switching and externaleffects devices
Regulated24Vdc simplex supply for powering
condenser microphones
tiatat'side'alfor every application. Need more bapabil- Bright red
LED indicators show input clipping,
ity?The PRO MASTER is super-expandable-use power amp peak output level, power amp overload,
accessory mixersor power amps, stage monitor power-on,temperature warning,and shutdown
speakers, effects devices, whateveryou needcan
easily beadded.And it'sall backed by Shure'stra-
m Protectedagainst damage from open-or short-
ditional quality and reliability.It'sthe sound you need circuitson inputs or outputs
;. .whenyou need it.. . and where you need it. Protectedagainst heat damage by ultra-reliable
coolingfan and automatic thermal shutdown circuit
Protectedagainst radiofrequency interferenceand
line noise
Operates on as low as 100Vac (at reducedoutput)
Ruggedmolded ARMO-DURcase with carrying
handle and linecord storage
Listed by Underwriters' Laboratories, Inc.;listed by
Canadian Standards Association as certified

Controls Connectors lndicotors
lnpl.Jt Channels (Orangemarks on contios ~ndlcitehasic or nitiaisettnnsi
Basically . ..
MONITOR
Independently controls channel monitor level
to monitoroutput.Adjust for desired monitor
mix when using amonitor system.
EFFECTSIREVERB
Controlsamountof reverberationandlor
externaleffects onchannel.Adjust for des~red
amount (uselow settings for vocals, higher
settingsfor instruments).
HI FREQ EQ
Setschannel treble boost or cut for desired
tone shap~ng.
LO FREQEQ
Sets channel bass boost or cut for desired
tone shaping.
INPUTCLlP
IndicateswhenInputsignal istoohigh.Adjust
INPUTATTEN untilonlyoccasional flashesare
noted.
INPUT ATTEN
Adjusts input attenuationfor channel.
Suggested init~alsett~ngs:condenser micro-
phones or amplified instruments -12 to -30;
normalvocals
-6 to -12; loudvocals -12 to
-24; distant miking 0.
VOLUME
Allows individual setting of channel inputfor
desired signal mix. If setting isconsistently
low (1or
2), or high (8 to lo),adjust INPUT
ATTEN.
Inputs:
Bothinputsmay beusedat thesametimewith
similar microphones (one highand one low
impedance),allowing upto 12microphones
simultaneously.
HI IMP
Providesfor connectionof high-impedance
microphones, direct instrumentpickups,
keyboards,amplified instruments,tape
recordersor other high-level sourcesto
channel input.
BAL LO IMP
Providesfor connection of low-impedance
dynamic, ribbonor condenser microphones
andother low-level inputsto channel input.
(Don't usewhen high-level source is used on
HI IMPinput.)
Inoddition. ..
MONITOR
ControlprecedesVOLUME ("pre-fader")and
other channel controls; not affected byVOL-
UME,EQualizers,or EFFECTSIREVERB.Only
affected by INPUT ATTEN, allowing totally
independent monitor mix.
EFFECTSIREVERB
This channel send control followsthe INPUT
ATTEN, VOLUME and EQ controls. Can be
usedsimultaneouslywith reverband external
effects devices,or as a second monitor
("post-fader")to the EFFECTS OUTPUTjack
HI FREQ EQ
Adjusts channel 213 dBat 10kHz on all out-
puts except monitor;does not affect monitor
output.
LO FREQ EQ
Adjusts channel 2 13dBat 100Hzon all out-
puts except monltor;does not affect monitor
output
INPUT CLlP
Lights approximately 3dB prior to clipping
of preampor input channel equalizer.For
optimum signal-to-noise ratio,adjust INPUT
ATTEN for occasionalflashes (nolight may
mean noisyoperation;constant light means
distortion).
INPUT ATTEN
Adjusts gain of preamplifier to permit channel
to accept microphone levelsignals,direct
instrument pickups,or high levelaux signals
from amplified instrumentsor tape recorders;
almost any input device can be
accommodated.
VOLUME
Affects alloutputs except monitor;does not
affect monitor mix.
HI IMP
Can beusedwith line matchingtransformer
(ShureA95FP)to allow two low-impedance
microphones on channel (not recommended
for two condenser microphones).
BAL LO IMP
Also may beusedto power mostcondenser
microphones suchas the Shure SM81; built-in
+24 ~dcsimplex power supply voltage
activated by rear-panelswitch.

I Rux Inputs
Channels 7and 8are aux level inputs, providingadditional input
capabilitiesfor tape recorders,synthesizers,amplified instruments,back-
ground music sources, preamplified phonographs,or other mixers.These
channels haveAUX INPUTphonejacks, VOLUME controls for settlng the
channel inputmixlevel.To playastereotapeinmono,connectthe lefttape
channel to AUX INPUT7and the right tapechannel to AUX INPUT 8. If
equalization, reverbleffectsand monitorare desired,usetwoof thefirst six
HI IMP input channels with proper inputattenuation.
These inputs canalso be used for the return signal from an external effects
dev~ce(delay,echo,etc.)driven by the EFFECTS OUTPUT
When an additionalmixer (suchas the Shure M68,M67or SRIOI) is
connected to channel
7 or 8,the aux channel volumecontrol becomes a
submaster control
The orange control marks indicatebasic or initialsettings
LED Stotus lndicotors
POWER-lnd~cates applicationof ac voltage to power supplywhen
rear-panelON-OFFswitch is turned on.
TEMP WARNING-Lights when unusuallyhightemperature of 70°C
(158°F)is reached on the output transistors. Indication may bedue to
blockageof air louvers,dirty air filter, or operating the console at a high
output levelwith a low load impedance (toomanyspeakers or a short-
clrcuitedoutput). Indicatorwill turn off when transistor case temperature
drops below 70°C. If indicator lights,it is advisabletoidentifythe cause and
makecorrections to avoid shutdown.
SHUTDOWN-When indicator ison,poweramplifier isturned off (allother
circuits remainon).The console may shut downfor one of the following
reasons:
(I) excessive temperaturedue to inadequate cooling (seeTEMP
WARNING),
(2) dcvoltage on speaker lines due to powertransistorfailure
(checkforthisconditionbyturningtheconsoleoff andturning it backon),or
(3) airflow blockage dueto fan failureor air passageobstruction.
- Heodphonss
A %inch phone jack is available for connection to a pair of stereohead-
phones.Thejack is wired to the power amplifier.The signal levelto the
headphonesfollowsthe MASTER VOLUMEcontrol.Theheadphones allow
the console to beused as amixer for tape recording.The speakers can be
disconnected to avoid feedback.
POWER I
TEMP SHUTDOWN
WARtjthiG
I
HEADPHONES

Controls Connectors Indicators
PeakIndicatorsg Equalizer- FEEDBACK FINDERTM
- DBPCAH Indicators
Are connected to power amplifier outputs and
Indicate peak output level.0 DB PEAK equals
approxlmately 25 wattsto a4-ohm load.A 6 dB
change isa4-tlmes power change; therefore.
-36 dBrepresentsa6 mW output and +6dB a
100Woutput. These Indicators are alsoused to
providean instantaneous readoutof feedback
frequency (see FEEDBACK FINDER).(Notethat
when the FEEDBACK FINDER is activated, the
DBPEAK
indicators are converted to frequency
band indlcators-frequencies are shown below
the equal~zercontrols-and donot indicatethe
signal level
)
PA (Power Amplifier)
OverloadIndicator
L~ghtswhen the powerampllflerexceedsapprox~mately 1% dlstortlon
level (causedby clipping overload or any condition result~ng~n
Imperfect signal ampliflcatlon) The lndlcator 1s sensltlveto linevolt-
ageand speaker loadcondltlons The overloadcondtioncangener-
ally becorrected by turnlng down the MASTER VOLUME control If
the lndlcator remainson the speaker load may be Improperor a
speakercablemaybeshorted It may remalnondurlng SHUTDOWN
actlvatlon Under normal conditions th~sIndicator corresponds to a
levelof
+9 dBonthe DBPEAKind~catoror 200 wattsto a4-ohmload
Graphic Cqualizer
Isa10-band fully comb~nlngm~n~mum-phaseoctavetype normally
connectedtothe powerampl~flerInput It provldes13dBboostor cut
at 63 125 250 500Hz 1
2 4 8 and 16kHz plusa BELOW63Hz 12
dB1octavecutoff fllter The graphic equallzer permitsadjustment of
the sound system frequency responsefor atonal balanceapproprl-
ate to the performance and a reduction Inthe tendency toward
feedback It can also beusedto adjust anaudio playback system
frequency responseto compensate for
variations in electrical and
acoustical responsethat can alter the naturalsound of the recorded
materlal
The graphlc equallzer can also beusedto producedisco-type
sound by moderate amounts of low-and high-frequency boost
Notethat equalizat~onby ear for proper sound qual~tyrequiresa
certalnamountof skilland tlme. It ispreferableto useacommerc~ally
available equalization analyslssystemsuch as the Shure M615AS
EquallzatlonAnalyzerSystem,followed byfeedback tunlng uslngthe
bu~lt-inFEEDBACK FINDERand Indicators (see next section).
IMPORTANTDon'toverequallze!Too much
equalization canresult In
unnaturaland qu~teunpleasant sound
NoIndicator1s provldedfor eltherthe63 Hzflltercontrolor BELOW63
Hzfilter swltch,any low-frequency problems lhkely to beencountered
canbeeas~lyremovedbyadjustment and lhstenlngtests Reducethe
63 Hz equallzer or movethe swltch to BELOW 63
(r) ~f the sound is
boomy' or ~f extremelylow-frequency noisessuch as 'pop'or wind
nolseare causlng power ampllf~eroverload
Sincethe graphic equallzer controls may overemphasizeor remove
desirable programmaterlal you should minlmlze acoustic problems
(~ncludingfeedback) by careful m~crophoneand speaker placement
beforeequallzlng
The FEEDBACK FINDER usesthe LED lndlcators to providea qulck and easy meansof determlnlng
3 FCCDf3ACHFINDQRTM
the freauencv (octavebandocation, of the most~rominentfeedback tonesTheara~hiceaualizercan
then beusedto reduce the system responseat thesefrequencies to suppress feedback Connect all
speakers and microphones and placethem Inthelr proper posltlonsfor the performance Set master
controls and ind~vidualInputchannel MONITOR. EFFECTSIREVERBand EQ controls to 0 Set all other
lndlvldual Inputchannel controls to the lnltlal (orange mark) posltlons Turn the FEEDBACK FINDER
swltch to ON The DB PEAK lndicators are nowconnected for the feedback ind~catorfunctlon Adjust
the MASTER VOLUME to just belowfeedback If necessary turn down the FEEDBACK FINDER
THRESHOLD control from the 10 pos~t~onto the point where room background noisedoes not lhght any
DB PEAK lndlcators Increasethe MASTER VOLUME unt~lfeedback just occursand notetheh~ghest
frequency bandwith alit LED Reducethe equalizer settlng inthls band untllfeedback stops Repeat
the last two steps untilthe feedback sound becomesa
combination of anumber of tones or untilone
equal~zercontrol has beenset to -10 IMPORTANT Dont overadjust the equal~zerlToo much equaliza-
tlon can result In unnaturalsound Wlth practlce the FEEDBACK FINDER can be used to equalrzefor
feedback w~thout
subjecting the aud~enceto ear-spl~ttingfeedback levels
When completed perform a lhstenlngtest uslng program materlals~mllarto the planned performance
and if necessary makesl~ghtadjustments to the equal~zersto prov~dethe most pleasing sound
IMPORTANT This console hasa power-l~mitingfeaturewhlch permits FEEDBACK FINDERoperatlon
wlthout allowlng feedback to reachear-spl~ttinglevels A clrcult at the power ampllfler Inputlimltsthe
amplifier to approxlmately 13% (26watts) of full ratedoutput To Insurefull power operatlon the
FEEDBACK FINDER swltch
MUST bereturnedto the OFFpos~t~onafter setup
When using the graphic equallzer for stage monltorspeakers, feedback
suppression of the monltor
systemisperformed afterthe housesystemandwlththemalnspeakersoff The monitorspeakers must
beInthelrf~nal
operating positions relatlvetothe mlcrophones used Usethe sameprocedure asfor the
housesystemexcept usethe lndlvldual MONITOR leveland MASTER MONITOR controlsfor level
adjustments If more than one performer's microphone 1s involved select the leadperformeror center
stage mlcrophone foroperat~onInthefeedbacksuppress~onprocedure NOTE Dur~ngthls procedure a
person must stand Infront of or hold (slmulatlnga performer)the mlcrophonebelngequalized Slnce
excessive low-frequencysignalsarenotusuallydeslrable for stagemon~tors,~tmaybeadvisable toset
the equal~zerFLATIBELOW63switchof the monltorchannel to BELOW63,the63Hzcontrolto -10, and
the 125Hz control to
-5 Adjust the FEEDBACK FINDER THRESHOLD MASTER MONITOR and
EQuallzercontrols uslng the procedure previously descr~bedConduct avolce test and check for
adequate leveland ~ntelllglb~lityMakea s~m~larcheck of all other mlcrophones belngfed to the mon~tor
system lntell~g~b~litymaybeimprovedif deslred byasl~ghtincreaseofequal~zercontrolsinthe1kHzto
4 kHz range provldlngthe deslred levelcan bemaintamedw~thoutfeedback If feedback or ringing
1s encountered at any mlcrophone location try adjusting the positlonof and/or the dlstance to the
nearestspeaker

m~astcrControls
Basically.. .
Master Monitor
Controlsmonltor mlx levelto MONITOR
OUTPUT lack.
ReverbReturn
Controlsreverb levelto channel signal mix.
ReverbHI EQ
Sets reverb signal treble boostor cut for
desired tone shaping.
Reverb LO EQ
Sets reverb signal bass boostor cut for
desired tone shaping.
EffectsSend
Controlslevelof effects amplifier signal to
EFFECTS OUTPUTjack.
MasterVolume
Adjusts levelof channel mix.Controlslevelof
channel signals from mic inputs 1-6 and aux
inputs
7 and 8 toalloutputsexcept MONITOR
and EFFECTS.
In addition ...
Master Monitor
ControlprecedesVOLUME andother channel
controls. Only affectedby INPUT ATTEN and
channel MONITOR controls.
ReverbReturn
Th~scontrol followsthe INPUT ATTEN, input
VOLUME and EQ,and EFFECTSIREVERB
channel controls, as well as the REVERB EQ
controls. Not affected by the MONITOR
controls, or follow~ngmastercontrols.
Reverb HI EQ
Adjusts master reverbsignal high-frequency
equalization on output.Does not affect
MONITOR OUTPUTor EFFECTS OUTPUT
Reverb LO EQ
Adjusts master reverbsignal low-frequency
equalization on output.Doesnot affect
MONITOR OUTPUTor EFFECTS OUTPUT.
Effects Send
Affected by channel INPUTATTEN, EQ,
VOLUME and EFFECTSIREVERBchannel
controls Usedfor externaleffects or second
monitor.
MasterVolume
Doesnot affect s~gnalsadded to COMmon
MIX jacks or EQ and PA INPUTS.

controls connectors Indicators (continued)
Powerand SpeakerConnections
Power ON-OFFSwitch
Applies ac powerto power supply (doesnot switch ac outlet).
.~nswitched AC Grounded Outlet
Providesupto 100watts of ac powerto accessory equipment
(mixer,tape recorder,lamp,etc.).The outlet is notfused and not
switched;usethe power switch on the accessory equipment.
The outlet is not intended for usewith high-power equipment
such as poweramplifiers.
@AC lineCord
Connect to ac power(120Vac ? lo%,50160 Hz). Useonly 18
AWG (orlarger),three-wireextensioncords. Consolemaydraw
upto
4 amperes (500watts) from ac supply circuit. May be
operated from other voltages (see Service Manual).
.4A, 250V Fuse
Protectsconsole power supply aqa~nstoverload. (Replace only
with ident~cas~ziand type
'4k, SLO-BLO, 250Y type 3AG.)
OSpeokerOutputsJock (2)
Connect to speaker systems such as the Shure 701or 709.
Suggested speaker loads for the console include:
2-Shure Model 701or 709 PRO MASTERTMSpeaker
Systems
(8 ohmseach),or
4-Shure Model 702Stage Monitor SpeakerSystems (16
ohms each),or
2-Shure Model 703 PRO MASTER'"Stage Monitors(8
ohms each),or
4-Shure Model SR103 Speaker Columns(16
ohms each),or
2-Shure ModelSR112 or SR116 Compact Speaker
Systems (8ohms each).
Connectingtoomanyspeakerstoeitheror bothoutputjacks may
result inacombined load below the 4-ohmminimum.Operation
withsuchaloadmaycauseanexcessivelyhighinternaltemper-
ature(TEMP WARNING LEDturns on),or the PA (power
amplifier) OVERLOAD LEDmay turn onat lower than normal
levels (beforethe +6 dB LED).Notethat no damagewill result;
the console is protectedagainst speakeroverloads and shorts.
Also,theconsole maybeoperated withoutspeakers (withhead-
phones)for tape recording.

PRTCH OLOCH'" Rear Panel
e~implex 24V Switch
Turn on when powering low-impedancecondenser micro-
phones from the console;turnoff when not used.Balanced
low-impedancemicrophones may be used incombination
with condenser microphones. NOTE:Do not turn on when
using unbalancedlow-impedancemicrophones. The built-ln
24 Vdc simplexvoltage IS appliedto inputchannels 1 through
6 BAL LO IMPconnectors to power most condenser micro-
phones.Makesurethe microphone(s)will operate properly
with
24 Vdc open-circuitvoltageanda1.8kpowering resistor.
Monitor OutputJack
Prov~desunbalanced lineleveloutput (intendedfor connec-
tionto unbalancedauxiliaryor line bridging inputs)for sepa-
rate monitoramplifier system. Output (pre-fader)precedes
channel VOLUME, EQualization,and EFFECTSIREVERB
controls. Adjust ~nd~vidualchannel MONITOR controlsfor
desired mix,and MASTER MONITOR control for overall level.
Connectto PA (poweramplifier) INPUTorEQual~zerINPUTto
use console power amp or graphic equalizer for monitor,or
connect to external power amplifier.
.Reverb Switch Jack
Providesfor connection of remote reverbfootswitch; reverb
channel and master controls can be preset and added by
performerswhen needed.Switch closure acts the same as
turnlng downthe REVERB RETURNcontrol, disabling the
reverb.Footswitchcable need not be sh~elded.
@€ffects Output Jack
Connectto externaleffects devices such as echo,delay,
flanger,or phase shifter input. Affected by channel INPUT
ATTEN,VOLUME,EQ and EFFECTSIREVERBcontrols, and
masterEFFECTS SEND control. Connect effects deviceout-
put (return)jack toAUX INPUT
7 or 8. Aux channel VOLUME
control becomeseffects returncontrol.EFFECTS OUTPUT
jack maybeused as second(post-fader)monitorbyconnect-
ing to external powerampor console PA (power amplifier) or
EQ INPUT
@Mix Output Jack
This COMmonMIX (output-input)jack provides a post-
MASTER volume, pre-graphicequalizer output or input for
picking off the mix for Insertionintotape recordersor other
poweramplifiers,or insertingexternals~gnalsfrom otherPRO
MASTER'" consoles.
@€Q lnputJack
Providesfor insertionof sianais from MONITOR or EFFECTS
OUTPUT from the console"or from an external mixer,at the
sametime disconnecting the normalsignal.The inserted
signalw~llbeaffected bythegraphic equalizer,but not bythe
MASTER VOLUME control. If there is noconnection at the PA
INPUT,the inserted signal passes to the power amplifier,and
the graphic equalizer and power ampl~fierare used for the
monitoror effects system. lnserted signal is not affected by
any PRO MASTER volume controls, so console should be
turned off when connectingexternalequipment tothis jack.
TEQ Output Jack
ThisCOMmonMIX (output-input) jack providesfor pick~ngoff
the equalized signal for connection to atape recorderor
another poweramplifier,or insertion6f signalsfromother PRO
MASTERconsoles inadditiontothe existingequalized signal.
lnsertedsignal is not affected by any console controls.
.PA lnputJack
Providesfor insertionof signals into power amplifier from
consoleoutputs (MONITOR,EFFECTS,etc.),at thesametime
disconnecting the normals~gnal.lnserted signal is not
affected by any PRO MASTER console controls, so console
should beturned off when connectingexternal equipment to
this jack.
@RUX Output Jack
Providesaux levelsignal to tape recorder,other mlxer or
amplifier,or housesound system. Signal is pre-graphic
equalizer and is affected byall other console controls except
monitor.
~MIC Output Jack
-
Providesbalanced,low-impedance,microphone-levels~gnal
to tape recorder or house sound systemwhen used In con-
junction with built-in systems.Allows PRO MASTER console
to beusedfor mixing,monitoring or recording. Connect to
low-~mpedancemicrophone inputjack. Signal is pre-graphic
equalizer and is affected by all other controls except monitor.

Setups
Theversatilityofthe PRO MASTERTMisinpartachievedbythemanyPATCH BLOCKTM(rear
panel)inputsandoutputswhichpermititsuseinawidevarietyofapplications. Thesetups
describedinthis sectionoffer some ideaof the variedapplications ofthe PRO MASTER.
Useonly high-quality, shielded patchcordsfor patching.Turnthe PRO MASTER power
switchoffwhen makingpatchconnectionstoavoid possiblehigh-leveltransients, noise
and hum.
BasicSoundReinforcement (SeeSetup 1 .)
Norear panel patching is required.Plug inthe micro-
phones and speakers.Set the front paneloperating
controls as desired (orangemarksoncontrols indi-
cate basic or initialsettings). Usethe FEEDBACK
FINDERTMand graphic equalizer to suppress
feedback tones.
Sound ReinforcementandMonoTape Record
and Playback
(See Setup 2.)
Connect the s~eakersto the SPEAKER OUTPUTS
jacks. connecttheAUX OUTPUTtothetape recorder
aux inputjack, and the tape recorderaux output to
a
channel 7 or 8AUX INPUT jack. Notethat the tape
recorder inputisnotaffectedbythegraphic equalizer.
If the frequency-shapingeffects of the graphic
equalizer are desired during recording, connectthe
tape recorder aux input to the PRO MASTER
EQ
OUTPUTjack. Inthe playback mode,the graphic
equalizer can be used as atone control.
AUX
IN
TO CHANNEL 7 OR 8
AuX
INPUT OUTPUT 4 D IAE$~~~~
AUX
a* SPEAKER @a0? 0
ouTPUTs
@aa@

Stage Monitorand "House" SoundSystem
(SeeSetup3.)
When a "house"system isto beusedas the prime
sound system,the PRO MASTER can be usedasthe
system mixer,andalso provide
a monitoroutput as
OUTPUT
follows. Patchthe MONITOR OUTPUTjack to the EQ
SPEAKER MONITOR
INPUTjack. Connect the MICOUTPUTto the house
OUTPUTS OUTPUT
system low-impedancemic input.Connect the
SPEAKER OUTPUTSto the monitor speakers.Adjust
the MONITOR controls for the desired monitor
TO HOUSE SOUND
SYSTEM MIC INPUT
speaker level,andthe graphic equalizer controlsfor
optimum monitor sound and minimumfeedback.
Adjust the channel VOLUME and MASTER VOLUME
controlsfor the desired housesystem level. Notethat
the monitor is pre-fader and adjustments to the
monitorand house systemsare independent.
If post-
fader is desired, connect the EFFECTS OUTPUTto
the EQ INPUTandadjustthe EFFECTSIREVERBand
EFFECTS SENDcontrolsfor thedesired monitorlevel.
Nowboththe houseand monitorsystemsare con-
trolled bythe channel VOLUMEcontrols.Notetoothat
the housesystem is not affected by the graphic
equalizer.
Sound Reinforcementand ExternalEffects
Device
(SeeSetup 4.)
Connect the EFFECTS OUTPUTjack to the input of
the externaleffects device (echo,flanger,etc.),and
the effectsdevice output to a channel
7 or 8 AUX
INPUTjack. Theeffects-modifiedsignalappearsat all
SPEAKER
PRO MASTER output jacks except the MONITOR
OUTPUTS
OUTPUT
I INPUT
TO CHANNEL
7 OR 8
AUX INPUT OUTPUT

Separate Monitor Equalizerand PowerAmplifier
(SeeSetup 5.)
WhentheSPEAKER OUTPUTSare being usedfor the
main speakers and a separate monitorsystem is
desired,connectthe MONITOROUTPUTjack to the
inputof aseparate equalizer (suchasaShureSR107).
Connect the equalizer output to a separate power
amplifier (suchas a Shure SR105B) andconnect
monitorspeakers.Themonitorsystemisonlyaffected
bythe PRO MASTER INPUT ATTEN, MONITOR,and
MASTER MONITORcontrols.This setup allows
independent adjustment of the mainand monitor
speaker levels.
Two Consoleswith Mainand Monitor Speakers
(Common Mix)
(SeeSetup 6.)
This setup combines all inputs on bothconsoles
and provides separate mainand monitorgraphic
equalizers and power amplifiers. Connect the MIX
OUTPUTjacks of the two consoles together.Connect
the MONITOROUTPUTofconsoleAtothe
EQ INPUT
of console B.Connect the MONITOR OUTPUT of
console Bto the console B EQ OUTPUTjack. Con-
nectthe main speakers to consoleA SPEAKER OUT-
PUTSand monitor speakers to console
B SPEAKER
OUTPUTS.Console
A canacceptvocal inputsfor
bothmainandmonitorspeakers.ConsoleA's graphic
equalizer is usedto enhance sound and minimize
feedback for all inputstothe mainspeakers. Console
B will accept instrumentinputs (guitars, keyboards,
etc.)for bothmainandmonitorspeakers. ConsoleB's
graphic equalizerminimizesfeedback andenhances
onlythe vocal inputs to the monitorspeakers. Note
that the instrument inputs to the monitorspeakers
bypassthe graphic equalizer andare unaffected by
the necessary vocal monitor equalization.
SPEA
OUTF, ,
MONITOR
OUTPUT
I ~%I\K~Rs
EQUALIZER POWER
AMPLIFIER
MAIN
SPEAKERS
ID.. r'
. .-. . . - .
OUTPUTS OUTPUT
A
.
SPEAKER
-, ,Tn, ,TO
MONITOR
SPEAKERS

Operotion
1. Position the microphonesand connect them to the
PRO MASTER'"Use bothinputs on eachchannel
~f
more than SIX microphonesareto beconnected.
Use low-impedance microphonesand cablesto
minimize loss and interference if long microphone
cable lengthsare needed.
2. Positionthe speakers andconnect themtothe PRO
MASTER.Make sure the combined speaker load is
notlessthan4ohms.Useminimumcable lengthsto
maximize output power. Use the proper cable size
for the required length.
3. Makeany rear-panel patching connections
required (refer to
SETUPS section).All patching
connectionsexcept the MIC OUTPUTare standard
two-conductor,%-inch phonejacks.
4.Connect any external effects device to the PRO
MASTER EFFECTS OUTPUT and AUX INPUT
jacks. Power for the external effects device can be
obtained from the PRO MASTER rear-panel
UNSWITCHED AC receptacle (100watts
maximum).
5. Connectthe PRO MASTER line cord to an ac source
capable of supplying 500watts. If extension cords
are required,make sure they are 18AWG or larger.
6. Makesure the PRO MASTER air louvers are not
blocked.Check to make sure the air filter is clean
7. In low ambient light conditions, a high-intensity,
low-wattagelamp (not supplied)can beplugged
intothe rear-panel UNSWITCHED AC receptacle
(1 00watts maximum).
8. If des~red,the supplied Instruction Platecan be
mountedon the PRO MASTER front panel above
the DB PEAK indicators.
IMPORTANT The Instruc-
tion Plate adhes~vebacking is designedfor perma-
nent mounting;for temporary mounting, leavethe
paper backinginplaceand use double-sidedtape.
9. Set the front-panelcontrols to their initial settings
(orangemarks).Set the INPUTATTEN controls for
the usageon each input.Turn onthe rear-panel
power ON-OFFswitch.
10.Adjust the MASTER VOLUME control to the desired
level. Using program material similar to the actual
performance,adjust the MONITOR, EFFECTS1
REVERBand EQ controls as desired forthe most
pleasingsound.
11.Usingthe FEEDBACK FINDER" set the equalizer
for the highest feedback-free sound level.The
equalizer controls canthen be "touched up"for
most pleasing sound.
12. During operation,observe the various LED
indicatorsfor possible setting corrections:
A. INPUT CLIP-If onconstantly,use the INPUT
ATTEN to reducethe input signal and eliminate
the distortion. (Setfor occasional flashing.)
B. DBPEAK-Observe actionto monitor output
power level.
C.PA OVERLOAD-If onconstantly, reduce
14
volume andlorcheck speaker load.
D.TEMP WARNING-Check for air blockage,
dirtyair filter,shortedspeaker cableor excessive
heat near the console.
E. SHUTDOWN-Check for excessive console
heating or cooling fan failure.
Mointenonce
The PRO MASTER is an exceptionally
well-designed unit.All components are of the
highest quality, operating well within their
respective ratingsto assure long life.The fol-
lowing list of Do'sand Don'tsdescribes mini-
maloperating precautionsandmaintenanceto
provideyears of dependable service.
DO cleanthe air filter every 100hours of
operation (morefrequently in dusty or dirty
areas).Stand the console on its rear bump-
ers, remove the screw securing the filter, and
slideitoutof itsslot.Rinsethefilter inwater or
a mild detergent solution, allow to dry,and
replace.
DO unplug the console beforecleaning.DO
cleanthe outer surfacesof the consolewith a
clean,dampclothandmilddetergent.DON'T
use strong solvents or cleaning fluids.
DO use an 18 AWG or larger heavy-duty
extension cord when additional line cord
length is needed.
DON'Toperate the consolewith air louvers
blocked,or placedon a radiator or heat-
producingequipment.Avoid operation in
direct, hot sunlight.
DON'Treplace the rear-panel fuse with a
different size or type. Useonly 4A,SLO-BLO,
250V,type 3AG.
DON'Trisk fire or shock hazard byoperating
the console in rain.
DON'Tuse unbalancedlow-impedance
microphones with the SIMPLEX 24V switch
on;turnoff the switch
if not requiredfor power-
ingcondenser microphones.
If simplex
power is in use,connect unbalanced low-
impedance microphonesthrough a line
matching transformer (ShureA95UF)
to a HI IMP INPUT:
Troubleshooting
Should any difficulty beencountered in
console operation,the problem can often be
traced to some simple source such as an error
ininterconnection.
The.followingisofferedasa
basic guideto this type of problem.

Troubleshooting
Symptom ProbableCause or Correction
Console IS "dead"(nooutput, POWER LEDoff)
1. Checkthat ac powersourceis "live"andthatconsole
is plugged in.
2. Check that power ON-OFFswitch is on.
3. Check that rear-panelfuse (4A, 250V) is good.
Consoleappears to beoverheating (TEMPWARNING
1. Check air louversfor blockage.
LEDon) 2. Check for proper speaker loador shorted speaker
cable.
3. Check air filter and clean if necessary
Console power ampl~fierturns off and remains off
(SHUTDOWN LEDon)
1 Turn MASTER control down for one mlnutetoallow
proper cool~ng
2. Turn console off for afew seconds and turn back on.
3. If shutdown persists, haveconsole checked by
qualified service personnel.
Nosignal at speaker (allconsole functions appear
normal)
1. Check for defective or improperly connected
speaker cables.
2. Check for improper
connections to EQ or PA INPUT
jacks.
3.Check settings of channel VOLUME and MASTER
VOLUMEcontrols.
Consolefuse blown
1 Replacew~th~dent~calfuse (4A, SLO-BLO, 250V)
2 If second fuse blows,haveconsole checked by
quailfled service personnel
One of two inputs on same channel notworking properly
(both%-inchand 3-pinjacks in use)
1. Makesure similarmicrophones are used on both
inputs,and microphone impedances matchthe
inputs used.
2. Makesure microphone is not usedwith accessory
equipment onother input.
3. Makesure bothmicrophone switches areon
INPUTCLIP LEDflashing
1. Adjust INPUTATTEN to reduce channel inputlevel.
2. Reduce inputsignal levelat source.
PA OVERLOAD LEDflasheswhile DB PEAK indicators
readlessthan
+6
1. Checkfor defective (shorted)speaker cable.
2. Checkthat load impedance is nottoo low (toomany
speakers are connected).
Loudnoiseclicks when certainmicrophones or cables
are used
1. SIMPLEX24V switch is on (when not needed).
2. Unbalancedcableused when SIMPLEX 24V switch
is on.
3. Check for defective microphone cables.
No monitoroutput (programoutput normal)
1. Check monitoroutputconnectionto EQor PA INPUT,
or externalamplifier.
2. Makesure MONITORand MASTER MONITOR
controlsare turned up.
3. Monitorspeaker volume control (if present)turned
down.
Soundquality poor (weakor thin)
1. Excessiveequalization on graphic equalizers
2. Defective inputor patching cables.

Type: Solid-state power console using discrete
components and integratedcircuits
Inputs: Eightinputchannels:six high- and/or balanced
low-impedancemic inputs, plustwo aux inputs
Graphic Equalizer: 10-band,fully combining,
minimum-phase,octave type,normally connectedto
poweramplifier input;13dBboostor cut at 63,125,250,
500 Hz,
I, 2,4,8and 16 kHz;BELOW63 Hz 12dB/
octave cutoff filter (10dBdown at 31 Hz)
PowerOutput:
200W min.to 4 ohms
125Wmin.to 8 ohms
Measured at 1kHz,120Vac, 1%THD
Distortion: THDtypically less than 0.1%at 40 Hz and
1kHz,0.25%at 15 kHz, IM distortion typically less than
0.25%(Output:180Wor less to 4 ohms, 1lOW or less to
8ohms,measuredfrom low-impedance inputwith indi-
vidual and master controls at typical settings)
Low-and High-Frequency
lnput Equalization:
t13dBat 100Hz and 10kHz
lnput Clipping Indicators: Light 3 dB below input or
equalizer clipping level
DB Peak Indicators: Indicatepower amplifier peak
voltage;
+6 dB LED indicates100watts sine-wave
output to 4-ohm load
PA Overload Indicator: Lightswhen power amplifier
THD exceeds 1%;fully on at 5%
Input Sensitivity: BAL LO IMP 0.6mV
(full poweroutput) HI IMP 8 mV
AUX 108mV
EQ INPUT 960 mV
PA INPUT 960 mV
lnput Clipping Level:
BAL LO IMP 700 mV to 21 mV (INPUTATTEN -30 to 0)
HI IMP 1OV to 335 mV (INPUTATTEN -30 to 0)
AUX 30V to 10V (VOLUMEfrom 0to 10)
Voltage Gain:
94 dB BAL LO IMP INPUTto SPEAKER OUTPUTS
71 dB HI IMP INPUTto SPEAKER OUTPUTS
49 dBAUX INPUTto SPEAKER OUTPUTS
64 dB BAL LO IMP INPUTto MIX OUTPUT
77 dB BAL LO IMP INPUT to MONITOR OUTPUT
74 dB BAL LO IMP INPUTto EFFECTS OUTPUT
22
dB BAL LO IMP INPUTto MIC OUTPUT
58 dB BAL LO IMP INPUTto AUX OUTPUT
81 dB BAL LO INPUTto HEADPHONE OUTPUT
0 dB EQ INPUTto EQ OUTPUT
30 dB PA INPUTto SPEAKER OUTPUTS
Levelsand Impedances:
NominalMaximum Actual Working
Circuit Level Level Impedance Impedance
BAL LO IMPINPUT 5 mV 700 mV 1k 19-300ohms
HI IMP INPUT 50 mV 10V 145k 1OOkor less
AUX INPUT 0.5V 30V 50k 1 Ok or less
MIX OUTPUT 1V 9V 2.4k 2k or more
EFFECTS OUTPUT 1V 9V 2.4k 2k
or more
MONITOROUTPUT 1V 9V 2.4k 2k or more
EQ INPUT 1V 10V 50k 1Ok or less
EQ OUTPUT 1V 9V 2.4k 2k or more
AUX OUTPUT 1V 9V 2.4k 2k or more
MIC OUTPUT
5 mV 75 mV 70ohms 19-300ohms
PA INPUT 1V 10V 50k 1Ok or less
SPEAKER OUTPUT
- 28.3V - 4 ohms or
more
HEADPHONES
- 10V 360ohms 4ohms or
more
Frequency Response: 22dB,40 to 20,000Hz,BAL
LO IMPINPUTto SPEAKER OUTPUTS
Humand Noise: (20Hz to 20kHz) - 127dBV
equivalent input noise (BALLO IMP)
Noise: (300 Hzto 20kHz) - 128dBV equivalent input
noise (BAL LO IMP)
Signal-to-Noise Ratio: Greater than 80dB(belowfull
output) at typicalcontrol settings (orangemarks,
MASTER VOLUME at 5,INPUTATTEN at
- 12)
Mic lnput Simplex Power: 24 Vdc open-circuit,
1.8kseries resistance
Power Requirements: 120Vac k lo%,50160 Hz;
500W max.(Forother voltages,see Service Manual)
Environmental Conditions
Operating:
- 7" to 43°C (20" to 110°F)
Storage: -40" to 74°C (-40" to 165°F)
OverallDimensions: 190mmHx584mmWx 508mm
D (7%in.
x 23 in.x 20 in.)
Weight: 18.2kg(40Ibs)

Speaker Systems Recommendedfor your PRO MRST€RTM
n
Model703 PRO MASTERStage Monitor
Th~s IS a profess~onaltwo-way mon~torsystem
des~gnedfor years of ruggedon-stage use It has two
8-~nchspeakers and a h~gh-frequencydr~vercoupled
to a 120" radial horn Horn d~spers~onangle may be
reducedto 60"fort~ghtercontroloffoldbacks~gnalCan
bepos~t~onedat
30" or 60" angle tothe stage Maximum
Model701and709 PRO MASTERSpeakerSystems
recommended ampl~f~eroutput 100watts cont~nuous
W~de-rangehlgheff~ciency,l~ghtwe~ghtportable to 8 ohms Frequency response 100 Hz to 16kHz
two-wavweaker svstems-ldeal com~anlonsto the Impedance 8 ohms
700 Se;ies PRO
MASTER Power consoles.The Model
701 provides high
SPL sound re~nforcementof wide
frequency range program material in every location
from the largest auditoriums to the most intimateclubs.
The speaker system consistsof a 15-inchwoofer in a
front-ported bass reflex cabinet, and a high-frequency
hornanddriver combinationwith adiustment for either a
60" or 120" hor~zontalhorn d~s~ers~onangle Eas~ly
Model708 High-FrequencySpeaker
b~ampedMaximum recommended ampl~fieroutput to W~tha h~gh-powercompresslondrlver and
150 watts cOntlnuOus Frequency
50
high-frequencyhorn,the Model 708 meets the most
Hz to 15kHz lmpedance 8 ohms Model 709 has a demand~ngrequ~rementsfor customspeaker stacks In
15-Inch woofer ln a ported three ~~~~~~l~~- addltlon can addlflonalhigh-frequency
tr~chorns Su~tablefor usew~thampl~f~ersw~ththe same emphas~sInfull-range systems Adjustable d~spers~on
maximum Output and Impedance as used with the 701
knob permits 60" or 120" horlzonta~ coverage
Frequencyresponse 50 Hz to 20 kHz Bu~lt-~nh~qh-frequencycrossover filter Max~mumrec-
ommended amplifier output.150watts continuous to an
8-ohm load. Frequency response:2,000to 15,000Hz.
Impedance:
8 ohms.
Model 702 Stage Monitor
Speaker System
A compact,high-quality,two-way speaker system
designed for localized sound coverage in on-stage
monitor (foldback)applications.The 702 may beused
with virtually any power amplifier delivering upto 50
watts to a 16-ohmload.It can beplaced in either of two
slanted positions facing the performer.Built-involume
control. Frequency response:100Hz to 20 kHz.
Impedance:
16 ohms.
Model707 Low-FrequencySpeaker
Designed for custom speaker stack installations,the
Model 707 operateswith amplifiers capable of deliver-
Ing upto 150watts continuous to an 8-ohm load.The
speaker can beusedwith the Model 708to make a
full-range speaker system,or in conjunctionwith
another full-range systemfor low-frequency emphasis.
Beveled backpermitsuse as a stage monitor. Fre-
quency response:50to 2,600Hz. Impedance:
8 ohms.

Speakers and Accessories
ModelSR103
SpeakerColumn
Outstanding performance in
sound reinforcementsystems.
This column hasa wide fre-
quency range, distortion-free
reproduction and high sound
penetrationpower. Model SR103
isdesignedfor permanentinstal-
lation. Power rating:100watts
maximumto 16ohms. Frequency
response:100Hzto 15kHz.
Impedance:16ohms.
A95 Series Line MatchingTransformers
Adapt high-impedancemicrophoneto low-impedance
console inputs,and low-impedancemicrophone to
high-impedance inputs.ModelA95UF plugsdirectly
intoconsole input.
monitorand club applications.
They feature wide frequency response,
low distortion andsmoothdispersion characteristics,
and are designed to operatewith amplifiersdelivering
upto 100watts to an 8-ohm load.The SR112Band
SR112W are designed for permanent installation
(SR112Wiswoodgrain, scuff resistantvinylfinish),
andtheSR116Bis portablefor temporaryinstallations.
Frequency response:45 Hzto 16kHz.
Impedance:
8 ohms.
ModelA700C ConsoleCover
Madeof rugged,reinforcedvinyl,thisusefulaccessory
protects against weather and scrapes. Slip-ondesign
permitsquick setups and takedowns. Front cutout
providesfor carrying handle use.
ModelA7S ConsoleStand
This handsome, sturdy unit makesaconvenient
support when atable or desk is not available.Madeof
durablesteeltubingandparticleboard,it isquickly and
easilyset upand taken down.
Guarantee
This Shure product is guaranteed in normaluse
tobefreefromelectrical andmechanical defects
for a period of one year from date of purchase.
Please retainproof of purchase date.Th~s
guarantee includesall partsand labor.This
guarantee is in lieuof any andall otherguaran-
tees or warranties,express or implied,and there
shall be no recoveryfor any consequential or
inc~dentaldamages.
Service
If informationor service should berequired,contact your local
Shure PRO MASTER'" dealer
explaining your difficulty in
detail. Inaddition,theShurefactory service department will
bereadyto assist you Immediatelyupon request.
Shipping Instructions
Carefullyrepackthe unit and return it prepaidto.
Shure BrothersIncorporated
Attention: ServiceDepartment
1501West Shure Drive
Arlington Heights, Illinois60004
If outside the UnitedStates,returnthe unit toyour dealer or
Authorized ShureServiceCenterfor repair.The unit will be
returnedto you prepaid.
For moreinformationon Shure speakers and speaker accessories, write:
=$A SHURE
ShureBrothers Inc., 222 HarIreynve., tvansron, IL auLur 6.S.A.
Copyr~ght 1980, Shure Brothers Inc
27A8003 (TK)
PrtntedIn U S A