Mic Inputs; Rear Panel - Tascam MA-AD8 User Manual

When one of these switches is in the up position, the
signals passed to the DIGITAL I/O1 connector for the
corresponding channels will be the appropriate mic
inputs (the XLR connectors on the rear panel).
When one of these switches is in the down position,
the signal passed to the DIGITAL I/O1 connector for
the corresponding channels will be the two appropriate
channels of the digital audio received at DIGITAL I/
O2 (AUX) w .
This allows digital repatching of multitrack recorders
to the mixer on overdubbing and mixdown etc. without
the need to disconnect and re-connect cables.
NOTES
When these switches are operated, an audible
click may occur. To avoid damage to monitor
speakers, etc., turn down the level of all moni-
toring equipment before operating these
switches.
The digital signals received at the
DIGITAL I/O1 connector are always output to

1.2 Rear panel

9 MIC INPUTS (1–8)
These balanced XLR-type input connectors are wired:
1 GND
2 Hot (+)
3 Cold (–)
A PHANTOM (+48V) switches
These switches control the +48 V phantom power sup-
ply to the MIC INPUT s. Each switch controls the
phantom power supplied to a group of four inputs—1
through 4, and 5 through 8.
They each have three positions, which allow the first
two inputs of the group ( 1–2 and 5–6 ) to be supplied
with phantom power (phantom power to the other two
inputs of the group will be turned off), to all inputs of
the group, or off for all inputs in the group.
Note that it is not possible to supply phantom power
only to the second pair of inputs in a group.
MA-AD8 Digital Mic Amplifier
the DIGITAL I/O2 connector, and cannot be
rerouted.
6 OL indicators (1–8)
These indicators light when the signal fed to the A/D
converter for the channel (post-pad and post TRIM )
outputs a signal which is more than –3 dB, relative to
the digital "full-scale" level.
7 TRIM controls (1–8)
The TRIM controls adjust the level of the signal before
it is passed to the A/D converter. They work in a simi-
lar way to TRIM controls on a mixing console; turn
clockwise to increase the gain, counter-clockwise to
reduce it.
The TRIM controls provide 42 dB of gain control.
8 PAD switches (1–8)
When engaged, these PAD switches provide 22 dB of
attenuation to the corresponding channel. Use them in
conjunction with the TRIM controls to input line-level
sources through the MA-AD8.
To avoid damage to monitor speakers, etc., turn down
the level of all monitoring equipment before operating
these switches.
WARNING
Do not connect unbalanced signal sources
(dynamic microphones, instruments, etc.) to a
MIC INPUT connector with phantom power
supplied to that connector. This will result in
possible damage to the signal source, and to
the MA-AD8.
MICROPHONE CABLES AND MICROPHONES
CONNECTION: T
O PREVENT HAZARD OR DAMAGE
ENSURE THAT ONLY MICROPHONE CABLES AND MICRO-
PHONES DESIGNED TO THE
.
ARE CONNECTED
CONNEXIONS DES MICROPHONES ET DE
LEURS CABLES: P
OUR EVITER TOUT ENDOMMAGE-
, '
MENT S ASSURER DE BRANCHER UNIQUEMENT DES
MICROPHONES ET DES CABLES DE MICROPHONES
CONÇUS SELON LA NORME
IEC 268-15A
STANDARD
IEC 268-15A.
5
TASCAM MA-AD8
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