Audio Technica M2 Manuel d'utilisateur

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Wireless In-Ear Monitor System
M2 System
Features
High-delity sound with clean, articulate mix allows you to hear
yourself better at lower volume
Three receiver modes: Personal Mix, stereo, and mono
Personal Mix Control allows volume and mix control of two
independent signals at the receiver
100 selectable UHF frequencies
Up to 10 simultaneous systems per frequency band
Auxiliary input on receiver offers connection point for ambient
microphone, click track, or other mic- or line-level input
LED indicators provide easy-to-read level monitoring
XLR loop (true pass-through) output connects signal to mixing
console, additional IEM system or recording device
Pilot tone protects against RF interference when the transmitter
is turned off
Adjustable squelch eliminates annoying static
Limiter (defeatable) helps protect your hearing from sudden peaks
Description
The M2 is a frequency-agile in-ear monitor system designed to make
stage monitoring more effective, comfortable, portable, and intelligible.
This rugged system is built to stand up to the inevitable bumps
of life on the road, delivering clear, natural sound for touring and
installed-sound applications.
The M2R Stereo Receiver allows the user to create and control his/her
own mix on stage with Personal Mix Control that offers independent
control of volume and mix of two independent signals at the receiver.
The clean, articulate mix allows performers to hear themselves at
comfortable SPL levels.
The wireless UHF M2T Stereo Transmitter provides a choice of 100
selectable frequencies and is equipped with two XLR/
1
/
4
" combination
input jacks into which users can connect line-level inputs from a mixing
console or other audio source. While up to 10 complete M2 systems may
be used on stage simultaneously, any number of M2R stereo receivers
may be used on the same frequency with a single M2T stereo transmitter.
The transmitter inputs are equipped with loop-through outputs allowing
the audio signal to pass through to another transmitter or device. Two
selectable RF output levels on the transmitter allow it to operate success-
fully on small or large stages or in conjunction with other RF equipment
such as wireless microphones and other IEM systems. Easy to use front
panel transmitter controls allow for quick level adjustments and RF
channel selection. The transmitter incorporates a built-in limiter to help
protect the user’s hearing from sudden audio peaks. The limiter can be
defeated for situations where upstream processors or other equipment
connected to the transmitter provide limiting.
The M2 receiver is equipped with LED indicators for AF peaks, RF signal
present and battery status. Simple-to-use internal DIP switches on the
receiver allow the user to congure the receiver for one of three
operation modes. Mono mode supplies a mono signal to both ears while
stereo mode supplies a true stereo feed with balance control to the ears.
The third mode Personal Mix, enables the user to control the balance
between two mono sources effectively providing an on-stage mix control
at the receiver. Additionally, a local input is provided for inserting a signal
into the receiver. Typically used with a small ambient microphone worn by
the performer, this input can also be used to add in a click track or other
audio signal. Internal level controls are provided on the receiver for
squelch and auxiliary input. A built-in adjustable pilot tone squelch
protects against RF interference and annoying static. A standard 3.5 mm
locking earphone jack allows the receiver to be used with a wide variety
of earphones and headsets. The exible receiver antenna is removable for
eld service or storage. The receiver operates using standard 1.5V AA
alkaline batteries with an 8-hour battery life.
The supplied earphones are equipped with a proprietary Audio-Technica
dynamic driver offering a full frequency response and richly detailed
high-delity sound. The earphones come with three sizes of rubber
exible eartips and universal-t foam tips for a custom t, increased
isolation and long-wearing listening comfort.
Architect’s and Engineer’s Specications
The wireless IEM (In-Ear Monitor) system shall be designed to allow a
performer on stage to control and monitor audio signals over headphones
or earbud-type phones. The system shall consist of an FM transmitter and
one or more FM receivers. The transmitter shall provide two RF output
levels, which shall be switchable to accommodate small or large stages as
well as being able to operate with other wireless devices in a coordinated
RF environment. The transmitter shall transmit in stereo using one of 100
selectable channels. Up to 10 simultaneous transmitters shall be able to be
used within the same frequency group. The transmitter shall be equipped
with two XLR-
1
/
4
" combination connectors designed to accept line level
audio signals either balanced or unbalanced. Loop-through XLR-type
outputs shall allow the audio signal to be routed to another transmitter or
other audio input with no degradation in signal level or quality. Rear panel
attenuators shall provide -20 dB, -10 dB and 0 dB of attenuation to allow
the transmitter to be matched to a variety of input signal levels. In addition
front panel input trim level controls shall be provided on the transmitter
for gain adjustment. The transmitter shall provide visual indication of audio
input signal using LED indicators. Front panel controls on the transmitter
allow the user to select frequency group and channel for a combination of
100 available choices per operating band. A permanently attached front-
panel transmitting antenna shall be provided. It shall be possible to adjust
the angle and position of the antenna. The transmitter shall be designed to
operate on 12-18V DC, 600 mA power via the included AC power supply.
The wireless IEM receiver shall be a user-worn device capable of receiving
any one of 100 channels in the same band as the wireless IEM transmit-
ter. It shall be possible to operate an unlimited number of receivers on the
same frequency as the transmitter with no interference. The wireless IEM
receiver shall provide functionality to allow the user to create his or her
own personal mix along with standard mono or stereo receiving operation.
It shall be possible to select one of the three operating modes (mono, ste-
reo, or Personal Mix) by setting internal DIP switches within the receiver.
When mono mode is selected, the receiver shall output the single (left)
channel to both earphones. When stereo mode is selected, the receiver
shall output a true left and right stereo image to the earphones. It shall be
possible to control the panning and level of the stereo image using the top-
mounted concentric level/balance controls on the receiver. When in the
Personal Mix mode, the receiver shall output both incoming audio channels
to both earphones while providing the user the ability to control the overall
level of the mix using the receiver's level control and balance between the
two audio channels using the balance control, effectively creating a unique
and independent mix. The receiver shall incorporate an additional auxiliary
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Page 1 - M2 System

Wireless In-Ear Monitor SystemM2 SystemFeatures• High-delity sound with clean, articulate mix allows you to hear yourself better at lower volume•

Page 2

M2 Systeminput with dedicated level control for mixing in a local ambient microphone, click track or other audio signal at the receiver. Visual indica

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