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Maketing Information |
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This eight-channel automatic
mixer features Shure's
patented IntelliMix®, which
activates only microphones
being addressed, minimizing
poor audio caused by
multiple open microphones.
The SCM810 is designed
specifically for installed
sound applications. Features
include adjustable EQ per
channel, 48 V phantom power,
active balanced microphone -
or line-level inputs, line-level
outputs, highly RF resistant
chassis and circuitry,
complete logic control of
microphone activation,
linking capacity for up to
400 microphones, with an
internal power supply.
120/230 Vac power.
Part of Shure's Automatic
series of mixers the
Shure SCM810 provides a
feature set and sonic
quality suitable for any
sound reinforcement scenario.
The SCM810 features 8 Mic/Line
level inputs via removable
Block Connectors. All inputs
are balanced and provide
phantom power for condenser
microphones. There are 8
direct outputs (1 per input
channel) for direct routing
of incoming signal to
recorders monitors etc. Low-cut
filter and High-shelving EQ
switches are provided on all
input channels. In addition
to the mixers sonic quality,
the SCM810's automatic
features offer complete,
hands free operation between
multiple microphones.
The SCM810's Noise Adaptive
threshold distinguishes
between constant background
noise and audio signal
fluctuating in pitch, level
and consistancy (speech).
The threshold continuously
adjust so that speech levels
louder than background noise
activate that channel. The
Max Bus feature controls the
number of channels that
activate when triggered by a
signal. The Max Bus feature
can be set so that one
talker activates one channel,
even if multiple microphones
"hear" that talker. This
results in a constant
switching bettween talkers
on a panel or discussion.
Last Mic Lock-On feature
keeps the most recently used
mic active so that ambient
room signal remains when
mics are not in use. The
result is a natural
uninterupted signal flow. |
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Features |
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Noise Adaptive Threshold |
Part of the SCM810's "automatic"
features, the Noise Adaptive
Threshold feature
distinguishes between
constant background noise (such
as air conditioning) and
changing sound (such as
speech) for each input
channel. The SCM810
automatically adjusts
threshold so that speech
levels louder than
background noise are allowed
passage.
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Max Bus |
The Max Bus feature controls
the amount of microphones
that are active in any given
moment. One talker activates
one channel, even if
multiple microphones "hear"
that talker. |
Last Mic lock-On
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This feature leaves the last
mic used active. This
ensures that audio signal
generated from room ambience
will always be present. The
result is a natural sound
without pauses or breaks in
signal.
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Removable Block Connectors
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All mic input channels
feature removable 3 pin
block connectors. All inputs
except active balanced
microphone or line level
signal.
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Progamable Dip Switches
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7 position programable
switches provide further
modifications to internal
features. Limiter Threshold,
Off-Attenuation level, and
Hold Time can be adjusted.
The mixer can be switched
bettween Manual and
Automatic modes and the Last
Mic Lock feature is
defeatable as well.
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Microphone Logic Connector
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A standard DB25 male output
connector interfaces with
external control devices for
complete remote operation.
Custom configurations of
features can be triggered
remotely from simple cough
switches to elaborate
computer controlled remote
stations.
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Direct Outputs
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All 8 input channels feature
direct outputs via 1/4"
phone connections. All
direct outputs are pre gate
and pre EQ but can be
modified internaly for post
gate operation.
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Cascadability
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The Link In/Out jacks
provided in the rear allow
multiple SCM810's to be
cascaded for up to 400
microphone channels.
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Specifications |
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Inputs |
8 - Removable Block
Connectors, balanced
microphone or line level
input
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Output
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8 - Direct Outputs (ch 1-8)
1/4" Phone jacks
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Monitor/Headphone Out
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1 - 1/4" TRS Phone jack (Headphone)
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ALT I/O
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1 - AUX line input 1/4"
Phone (front panel)
1 - Microphone Logic
connection DB25 male
connector |
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Link Input/Output
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2 - Link In / Link Out 1/4"
Phone jacks
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Impedance
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Input
MIC: Designed for use
with 19-600 ohm load, 1.6k
ohms actual, -15dBv clipping
level
LINE: Designed for
use with - / < 2k ohm load,
10k ohms actual, +22dBV
clipping level
AUX: Designed for use
with - / < 2k ohm load, 10k
ohms actual, +22dBV clipping
level
SEND/RETURN: Designed
for use with - / < 2k ohm
load, 10k ohms, +18dBV
Output
LINE: Designed for
use with >600 ohm load, 60
ohms actual, +18dBV clipping
level
HEADPHONES: Designed
for use with 8-200 ohms, 60
ohm recomended, 300 ohms
actual, +12dBV clipping
level
DIRECT OUT: Designed
for use with > 2k ohm load,
1k ohms actual, +18dBV
clipping level
SEND/RETURN: Designed
for use with > 2k ohm load,
1k ohms actual, +18dBV
clipping level
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Gain
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Low-impedance mic (150
ohms)Input:
Line 80dB, Headphones 88dB,
Direct Out 34dB - Outputs
Line Input: Line
40dB, Headphones 48dB,
Direct Out -6dB - Outputs
Aux Input: Line 44dB,
Headphones 52dB, - Outputs
Send/Return Input:
Line 20dB, Headphones 28dB -
Outputs
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Hum & Noise
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Equivalent Input Noise:
-125dBV (150 ohm source;
through 400Hz - 20kHz filter)
Equivalent Input Hum and
Noise: -123 dBV (150 ohm
source; through 20Hz - 20kHz
filter)
Output Hum and Noise: Master
full counterclockwise
-90dBV, Master full
clockwise -70dBV (through
20Hz to 20kHz filter;
channel controls full
clockwise)
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Frequency Response
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50Hz to 20kHz +/- 2dB; -3dB
corner at 25 Hz (Ref 1 kHz,
channel controls centered)
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Distortion
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<0.1% at +18 dBV output
level, 50Hz to 20kHz
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Metering
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4 segment LED's
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Controls
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Sealed Rotary Pots:
Microphone channels 1-8, AUX
input, Headphone and Master
gain controls
Recessed Rotary Controls:
Low Cut Filter and High-
Frequency Shelving channels
1-8
Phantom Power Switches
located in rear
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Phantom Power
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46 Vdc open-circuit through
6.8k ohms series resistance
per DIN 45 596
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Operating Temperature
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Operating: 0 to 60 degrees C
(32 to 140 degrees F)
Storage: -30 to 70 degrees C
(-20 to 165 degrees F)
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Power
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SCM810: 120 Vac rated
nominal, 50/60Hz, 200mA
SCM810E: 230 Vac rated
nominal, 50/60Hz, 100mA |
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Dimensions
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1.75 x 19.13 x 12.4 (44.5 x
483 x 317mm) (H x W x D) |
