SR101 Series
2
Audio Console
CONDENSED OPERATING
INSTRUCTIONS
1. Set all switches and controls to OFF or 0.
2. Connect PROGRAM OUTPUT (LINE or MIC LEVEL) to
power amplifier, broadcast line feed, etc. Connect
speakers to power amplifier. Connect headphones to
PHONES or
MONITOR/LINE LEVEL jack.
3. Connect sources (microphones, tape recorders, etc.)
to INPUT Connectors. Set Channel 7 or 8
MIC/AUX
Switches as necessary.
4. Connect external signal-processing equipment (com-
pressor, equalizer, etc.) to LlNK Jacks. (To connect
two Consoles, connect LlNK OUT Jacks together.)
5. Connect ac line cord to ac source.
6. Turn on POWER ON-OFF Switch and allow one to two
minutes
warmup time.
7.
Depress PROGRAM Switches for input channels to be
used.
8. Set INPUT
ATTEN Switches to preliminary position for
type of material to be used
(0 for speech, -10 for in-
strumental music, -20 or -30 for
"hard" rock music;
Channel 7 or 8 AUX INPUT: -20 or -30).
9. Set MASTER Volume Control to 7, and METER SENSI-
TIVITY Control to CAL. With source input, raise Chan-
nel Volume Control for desired sound level. Readjust
INPUT
ATTEN Switch if necessary.
10. Adjust HI and LO FREQuency
EQualization Controls as
necessary.
11. Depress REVERB Switch. Adjust REVERB INTENSITY,
and HI and LO REVERB
FREQuency EQualization Con-
trols as necessary.
12. Depress MONITOR Switches to monitor individual in-
put channels. Raise MONITOR Control to comfortable
listening level. Depress PROGRAM MONITOR for total
program monitoring (overrides MONITOR Switches).
SR101 Series
2
Audio Console
ARCHITECTS' AND ENGINEERS' SPECIFICATIONS*
The Audio Console shall be a self-contained 90- to 132-
The Audio Console shall have a voltage gain of 73
t3
volt, 50 to 60 Hz, line-operated, all-silicon transistor mixing
dB and a maximum microphone input sensitivity of 0.4 milli-
amplifier with preamplifiers and controls to mix eight in-
volts for a
+4 dBm program output.
dependent low-impedance microphone input
signals and to
The input channel input clipping level, with a zero at-
provide two independent outputs: Program and monitor.
tenuator setting, shall be 17.5 millivolts minimum with the
Each input
channel in the Audio Console shall have
linear-motion LEVEL control at maximum and shall increase
independent HIGH-FREQUENCY and LOW-FREQUENCY to
315 millivolts minimum with the linear-motion LEVEL
EQUALIZATION controls, four-position zero to 30 dB AT-
control near minimum.
TENUATOR Switch, linear-motion LEVEL control, REVERB
The
Audio
console
shall be enclosed in
a
metal housing
INTENSITY control and independent output assignment
designed for rack-mounting in standard 19-inch (483 mm)
switches for the PROGRAM and MONITOR buses. The 7th
Audio Equipment Racks, desk-top mounting, or mounting in
and 8th input channels shall each have two additional input
an
accessory
vinyl-covered wood portable case.
connectors (AUX. LEVEL) and an additional switch to se-
The
Audio Console dimensions
shall
be
311
mm
(121,,4
lect the desired input connector.
in.) in height, 483 mm (19 in.) in width, 143 mm
(5%
in.)
The
OUTPUT
circuit
have
a
600-ohm
in depth below the rack-mounting surface and 22.2 mm
balanced
line level Output
rated
at
+I2
dBm
at
less
than
(,/8
in,) above the rack-mounting surface. The weight shall
1% distortion with a minimum clipping level of +I9 dBm
be not
more
than
kg
(23 Ib.),
and a low-impedance, balanced, microphone-level output
at
a
level
50
dB
below
the
LEVEL
output,
A PHAS~
The Audio Console shall have a built-in tone oscillator
switch shall be provided to reverse the phase of both the
with
a
LEVEL
control1
and
an
lamp
LlNE and MICROPHONE LEVEL outputs.
on the front panel. A POWER
ON/OFF toggle switch shall
The program channel shall have a linear motion MASTER
be
located
On
the
panel.
A
switched AC recep-
LEVEL
control,
four
switchable notch-type
FEEDBA~~
tacle rated for 500 watts maximum load shall be provided.
FILTERS, a built-in reverberation system with high-fre-
The MICROPHONE INPUT connectors shall be 3-pin fe-
quency equalization and a REVERB "IN/OUTU Switch, and
male professional audio type. The AUX. INPUT ~Onne~tOr~
a 76.2 mm (3 in.) illuminated VU meter with a zero to
for channels 7 and 8, the LlNK Jacks, and the MONITOR
22 dB variable SENSITIVITY control.
LINE LEVEL OUTPUT Jack shall be two-circuit %-inch
A
pair of LlNK Jacks shall be provided in the program
phone jacks. The PROGRAM LINE LEVEL OUTPUT con-
circuit to allow connection to external equipment such as
nectors
shall be a 3-pin male professional audio-t~~e. The
compressor, limiter, equalizer, additional console, etc.
headphone (PHONES) connector shall be a three-circuit
1/4-
The monitor circuit shall have a
MONITOR
LEVEL
con-
inch phone jack to be used with either mono Or Stereo
trol, a
PROGRAM
MONITOR =IN/OUT~
Switch that electri-
phones with an impedance of
4
ohms or higher. An 11-pin
cally overrides the individual channel MONITOR switches,
AUX
LEVEL
Output shall provide
a 600-ohm unbalanced LlNE LEVEL output, and a trans-
former-coupled headphone (PHONES) output.
Any Audio Console not meeting all of the above
specifi-
*AII specifications apply to
SRIOI-2~
except: operating voltage is
90-132
cations shall be deemed unacceptable under this specifica-
or
180-250
volts; no switched AC receptacle is provided.
tion. The Audio Console shall be a Shure Model SR101.
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