Shure FP31 Technical Data Manual

222 HARTREY AVENUE
S m U e @
EVANSTON, ILLINOIS 6 0 2 0 2 - 3 6 9 6 V.S.A.
THE SOUND OF THE PROFESSIONALS'~
P R O F E S S I O N A L P R O D U C T S
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Controls and Indicators
Active, feedback-type input gain controls permit
direct input of high-level sources without input at-
tenuators
Built-in Limiter with adjustable threshold
-
prevents
output clipping of mixer or input overload o f
amplifier, telephone line or tape recorder
LED indicator flashes with Limiter operation or to
signal overload with Limiter defeated
Professional VU meter, factory set for 0 VU = + 4
dBm, internally adjustable for other VU levels
VU lamp, stays illuminated while pushbutton is
depressed, automatic 5-second turnoff after button
is released.
Battery check function with readout on VU meter
Master gain controls level at LinelMic and Tape out-
puts as well as tone oscillator level
Phones level control adjusts output at both head-
phone jacks
GENERAL Power
The FP31 is a portable electronic news gathering
.
Mixer is powered by two standard 9V alkaline bat-
(ENG) electronic field production (EFP), or film produc-
teries that also supply simplex power for condenser
tion, mixer that provides the quality and features need-
microphones
ed for remotes.
w
extreme!^
low battery d r a i n provides 8-hour
FEATURES
minimum battery life under normal conditions
Separate 9V alkaline battery supplies A-B power for
Inputs
condenser microphones; third battery is not required
Three transformer-coupled, 3-socket XLR-connector
if A-Q power is not used
i n p u t s ; e a c h s w i t c h a b l e t o l o w - i m p e d a n c e
microphone or line level
Spring-loaded battery compartment prevents incor-
rect insertion of batteries; batteries available for
w
Lo-Cut filters available at each input to reduce ex-
replacement instantly when compartment door is
traneous low-frequency interference
opened
.
(Phantom) simplex
O r
A - B
f o r
'Ondenser
.
Mixer can be powered from any
11
to 18 Vdc source
microphones available at each microphone input
such as: standard belt pack, automotive electrical
Built-in tone oscillator for level checks or line tests
system, video tape recorder. or ac power converter
Slate microphone with automatic gain control (AGC)
Mechanical characteristics
for take identification or for emergency use
Extremely rugged and durable construction
Slate tone for identifying take locations during
editing
Very small size and light weight
Carrying case and detachable shoulder strap sup-
Outputs plied
Two transformer-coupled, 3-pin XLR-connector out-
.
A ~ I input and output connectors are professional
puts, each switchable either to low-impedance
standard types
balanced microphone or to 600-ohm balanced line
level Performance
rn Tape output to feed tape recorder input or other un-
.
Reliable Operation u n d e r w i d e e x t r e m e s
balanced Aux-level input
temperature and humidity
rn
Front and side panel stereo headphone jacks (8 to
.
Extremely low noise and low RF susceptibility per-
2,000 ohms, %-inch and 3.5 mm jacks) with separate
mits use near microwave transmitters and in strong
hum fields
Phones level control. Either or both jacks can drive
Aux or unbalanced line-level inputs. Four separate Wide, flat response, extremely low distortion, and up
sources can be driven from these two headphone to
+
18 dBm output level provide studio-quality per-
outputs.
formance in a portable mixer
Copyr~ght 1991, Shure Brothers Inc
27A8080 (KG) Pr~nted n U S
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