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English --
SHURE AMS8100
DESCRIPTION
The AMS8100 is designed for numerous applications in
sound reinforcement, audio recording, and broadcast. In any
speech pickup application where multiple microphones are re-
quired, the AMS8100 dramatically improves audio quality. Au-
tomatic operation allows an individual talker’s voice to rise
above background noise and reverberation to become clearer
and more intelligible.
The Shure Model AMS8100 is an automatic microphone
mixerusing Shure’s patent--pending Directional Intellimix
Ò
cir-
cuitry. Directional Intellimix activates only those microphones
being addressed, minimizing the poor audio caused by multi-
ple open microphones. The special patented* AMS micro-
phones gate on only for sounds arriving from in front of the mi-
crophone within a 120
_
“acceptance angle”. Additionally, if a
talker’s voice originates within the acceptance angle of more
than one AMS microphone, Directional Intellimix will activate
only the closest, loudest microphone. Directional Intellimix,
however, does not limit the number of open microphones to
one; if several talkers speak simultaneously, Directional Intel-
limix will activate several microphones.
The AMS8100 can handle up to eight AMS microphones
and two aux--level sources.
The AMS8100 microphone inputs
work only with Shure AMS microphones
. Each microphone in-
put channel has a two-band equalizer. Equalization is useful to
reduce unwanted low-frequency audio pickup, as well as to
make the different AMS microphones—lavalier, surface--
mount, probe and gooseneck—sound similar in their different
applications. Each input channel has three associated logic
terminals: Gate Out, Mute In, and Override In. These connec-
tions provide for activation of external devices and external mi-
crophone control, important for specialized installed sound ap-
plications. Each mixer channel also has a
1
/
4
-inch phone jack
for use as a direct output. This jack can be modified to be a
gated channel output or a send/receive insert point.
The AMS8100 is capable of being expanded for installa-
tions as large as 400 input channels. The AMS8100 is fully
link--compatible with Shure’s SCM810 and FP410 automatic
mixers. The single-rack-height chassis is ideal forinstallations
with limited rack space. The removable header-type input and
output connectors are quick, convenient, and eliminate the
time and expense of wiring XLR microphone connectors.
The AMS8100 is designed for 100--120 Vac operation and
its line cord contains a standard American 3-pin grounded ac
plug. The AMS8100E is designed for 220--240 Vac operation
and its line cord contains a CEE 7/7 (“Schuko”) plug. An acces-
sory rack panel adapter to convert the removable block input
and output connectors to XLR connectors, and aux connec-
tors to phono jacks is available as the RKC800.
FEATURES
·
Reliable, quick-acting, noise-free microphone activation
·
Quick setup -- no threshold settings to adjust
·
Direction--sensitive gating activates microphones only for
sounds originating within 120
_
acceptance angle
·
MaxBus allows gating of only one microphone per talker,
while allowing gating of multiple microphones for multiple
talkers
·
Last Mic Lock-On circuit maintains ambient sound
·
Automatic gain reduction as additional microphones are ac-
tivated (NOMA: Number of Open Microphones Attenuator)
·
Adjustable EQ per channel: low-frequency rolloff and high-
frequency shelving
·
Bi-color LED indication of channel activation and clipping
·
Removable block screw connectors for quick and easy con-
nection of microphones
·
Link--compatible with SCM810 and FP410 automatic mix-
ers
·
Linking capability for systems up to 400 microphones
·
Non-automatic aux-level inputs with level control
·
Front-panel headphone output with level control
·
Peak-responding output limiter with selectable thresholds
and LED indicator
·
100--120 V operation or 220--240 V operation, selectable
via internal switch.
·
AMS8100: UL and cUL listed under UL813 and CSA C22.2
No. 1.
·
AMS8100E: Conforms to European Union directives, eligi-
ble to bear CE marking; VDE GS-Certified to EN 60 065;
meets European Union EMC Immunity Requirements (EN
50 082--1, 1992).
NOTE
Shure AMS8100 Mixers are designed for use only with Shure AMS Condenser Microphones. Conventional condenser or
other microphones will not operate properly with the AMS8100.
*U.S. Patent #4,489,442
