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channel is turned all the way down - otherwise a feed-
back loop will exist which could cause oscillation and
possible damage to speakers.  Care must be taken to
insure that the amplitude of the return signal is not too
great for the preamp channel input.  An input pad
may be used if needed.

REVERB FOOTSWITCH.  The Digital Reverb and Effects
processer can be defeated by inserting an optional
footswitch into the REVERB FOOTSWITCH jack.  This
allows the Reverb and Effects to be turned off and on
remotely.

2-4-4.  GEQ. OUTPUT.  The output of the GRAPHIC
EQUALIZER is present at the GEQ. OUTPUT jack;
inserting a plug into this jack does not interrupt  the
normal signal path.  The jack is useful for patching
more power amplifiers into the system, for post-equal-
izer recording and for inserting signal processing
equipment (limiters, parametric equalizers, etc.)
between the equalizer and the power  amplifier (see
Section 4-5).

2-4-5.  GEQ. INPUT.  The GRAPHIC EQUALIZER is
prepatched to the main output signal. However, the
GEQ. INPUT jack allows this “normalized” patch to be
defeated; inserting a 1/4” phone plug into the jack
disconnects the equalizer from the main signal and
instead connects it to any signal carried by the phone
plug.  This allows the equalizer to be patched to other
SR outputs or to other pieces of audio equipment.

2-4-6.  AUX. INPUT.  This input is generally used as a
return from an external signal  processing device
(flanger, phase shifter, etc.).  Signals present at this
input are routed to the Main buss by way of the AUX.
LEVEL control.  In emergencies, it is possible to use the
AUX. INPUT as a line level preamp channel,  although
it lacks the preamp channel’s equalization, monitor,
and effects sends.

2-4-7.  TAPE INPUTS.  Patching the output of a stereo
tape deck into the two phono (RCA) jacks produces a
monophonic  signal in the main mix.  This is useful for
playing music during breaks in the performance, or for
performances where prerecorded music is required.
The TAPE INPUTS signal level is controlled by the AUX.
LEVEL control.

2-4-8.  TAPE OUTPUTS.  connecting the two phono
(RCA) TAPE OUTPUTS to a tape deck’s recording inputs
allows monophonic signal from the MAIN OUTPUT to
be recorded.  The signal present at the TAPE OUTPUTS
is pre-GRAPHIC EQUALIZER and its level is determined
by the MAIN MASTER control.

2-4-9.  PWR. AMP INPUT.  Under normal circum-
stances, the power amplifier receives its input from the
GRAPHIC EQUALIZER.  However, by inserting a  1/4”
phone plug into the PWR. AMP INPUT jack, the normal
signal path is broken and any signal carried by the
phone plug becomes the power amplifier’s input.  This

b

b

c

c

d

OFF

CAUTION:

RISK OF ELECTRIC SHOCK

DO NOT OPEN

A PRODUCT OF:

FENDER MUSICAL INSTRUMENTS CORP.,

CORONA,  CA  91720

MADE IN U.S.A.

MODEL

TYPE: PR 179

POWER

ON

SPEAKER

OUTPUTS

520 WATTS

2 OHM

MINIMUM

TOTAL

SR6520PD

DSP POWERED MIXER

SERIAL NUMBER

INPUT POWER

INFO

1200W

e

CAUTION:

  

CHASSIS SURFACE HOT

WARNING:

 TO REDUCE THE RISK OF FIRE OR 

ELECTRIC SHOCK, DO NOT EXPOSE THIS EQUIPMENT

TO RAIN OR MOISTURE

AVIS:

  RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR

ATTENTION:

  SUPERFICIE DE CHASSIS CHAUDE

REAR PANEL

3-1

3-1

WARNING: 

 

DO NOT ALTER THE 

AC (MAINS) PLUG.

3-2

3-3

Summary of Contents for SR-6520PD

Page 1: ...Owner s Manual for SR 6520PD SR 8520PD P N 049152...

Page 2: ...TOM POWER 2 3 10 DELTACOMPTM 2 3 11 POWER LED 2 4 PATCH BAY 2 4 1 MAIN OUTPUT 2 4 2 MONITOR OUTPUT 2 4 3 EFF OUTPUT REVERB FOOTSWITCH 2 4 4 GEQ OUTPUT 2 4 5 GEQ INPUT 2 4 6 AUX INPUT 2 4 7 TAPE INPUTS...

Page 3: ...PUT GEQ INPUT POWER AMP SPEAKER OUTPUT 2 OHM MINIMUM EFFECTS OUTPUT REVERB FT SW EFF REV SEND LEVEL MONITOR OUTPUT MONITOR MASTER REVERB RETURN TO MONITOR REVERB RETURN TO MAIN AUX LEVEL AUX INPUT R L...

Page 4: ...ed for balanced input signals from low impedance microphones To avoid clipping in the input stage signal levels should not exceed 0 8 VRMS Higher amplitude signals such as balanced line levels signals...

Page 5: ...tor LED Engaging the switch applies 15 volts of phantom power to all the XLR microphone input con nectors for powering electret condenser microphones When the LED is illuminated the phantom power is o...

Page 6: ...uted to the Main buss by way of the AUX LEVEL control In emergencies it is possible to use the AUX INPUT as a line level preamp channel although it lacks the preamp channel s equalization monitor and...

Page 7: ...is 5 straight up Assuming that the various vocalists use similar miking techniques and sing at similar volumes the levels appearing in the monitor mix should be fair ly matched Further adjustments ca...

Page 8: ...pad A 30 dB pad can be made by using a Switchcraft con nector part S3FM with the resistor network shown in Figure 4 4 5 PATCHING Figures 5 through 8 show possible ways of patching external equipment...

Page 9: ...y 1 28V RMS Input Impedance 22k DELTACOMPTM Range 20dB PRE AMPLIFIER SECTION LOW Z Input Impedance 1 82k HI Z Input Impedance 18 2k HI Z Input Sensitivity for 520W 55mV RMS MAIN MASTER and Channel MAI...

Page 10: ...VERB TAPE ECHO DOUBLE HIT DELAY MULTI TAP DELAY REVERB DELAY TIME LARGE ROOM REV SMALL ROOM REV LARGE HALL REV SMALL HALL REV DEFEAT DIGITAL REVERB and EFFECTS E L E C T R O N I C S TAPE INPUTS TAPE O...

Page 11: ...OUTPUT MONITOR OUTPUT EFF OUTPUT REVERB FOOTSWITCH GEQ OUTPUT GEQ INPUT PWR AMP INPUT SYSTEM PATCH BAY PHANTOM POWER OFF ON 12 12 9 9 6 6 3 3 0 0 3 3 6 6 9 9 12 12 dB dB dB dB 63 125 250 500 1K 2K 4K...

Page 12: ...4 2 2 4 8 16 CHART A Parallel Impedance Example Cabinet A is 8 ohms Cabinet B is 4 ohms The total impedance when connected in parallel is 1 2 7 ohms 1 8 1 4 2 n 1 1 1 Z 1 Z 1 Z Zp 18 20 24 32 10 12 1...

Page 13: ...HIGH 15 15 LOW 15 MAX MON 0 0 MICROPHONE LINE 1 MAX EFF REV 0 0 15 HIGH 15 15 LOW 15 MAX MON 0 0 MID 15 15 MID 15 15 MAIN MAIN MICROPHONE LINE MAIN OUTPUT MONITOR OUTPUT EFF OUTPUT REVERB FOOTSWITCH G...

Page 14: ...INE MAIN OUTPUT MONITOR OUTPUT EFF OUTPUT REVERB FOOTSWITCH GEQ OUTPUT GEQ INPUT PWR AMP INPUT SYSTEM PATCH BAY PHANTOM POWER OFF ON 12 12 9 9 6 6 3 3 0 0 3 3 6 6 9 9 12 12 dB dB dB dB 63 125 250 500...

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