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2.0 Installation & Interfacing
2.4 MIC INPUT CONNECTION
The microphone input connector is located on the
rear panel. It is the standard XLR-3F type. Use only
properly wired balanced mic cables.
CAUTION: Some ribbon mics will be damaged by
phantom power. Some ribbon mics require phan-
tom power and some just ignore it. Please consult
your manual before connecting a ribbon mic to
the Channel.
CAUTION: Beware that 48 volt PHANTOM POWER
may be applied to the microphone input, creat-
ing a potential shock hazard. Standard practice
dictates shutting off the phantom power before
plugging or unplugging microphones. Wait at
least 10 seconds for the voltage to fall sufficiently.
This is not only for safety, but for protection of
sensitive microphones against power inrush.
2.5 INSERT JACKS
The Channel allows you to insert additional signal
processing between the Channel’s dynamics process-
ing and the equalizer block. Both Send and Return
jacks are balanced and run at 0dBu. This is a perfect
place to insert an external reverb unit or profanity
delay, but you have the option to put anything there
that you wish as long as it returns a nominal level.
Direct feed-through occurs with the normalling con-
tacts of the jacks. If you plug into either the SEND
or RETURN jack, the internal path is interrupted. You
need to be sure you have a viable send-return circuit
externally or there will be no audio output from the
Channel.
There is no insert bypass switch. Once plugged in, the
insert is always inserted. If you can’t get any output
from the Channel, make sure the inserted gear is
operating.
2.1 INSTALLATION
The Channel occupies a single rack space (45mm or 1-3/4 inches) of a standard EIA equipment rack.
When rack mounting, use appropriate cushioned rack screws. Never restrict air flow through the device’s vents.
When installing the units into a rack, distribute the units evenly. Otherwise, hazardous conditions may be cre-
ated by an uneven weight distribution. Connect the unit only to a properly rated supply circuit. Reliable earthing
(grounding) of rack mounted equipment should be maintained. Try not to position the Channel directly above
devices that generate excessive heat such as power amplifiers (unless adequately ventilated) or near equipment
with heavy transformer hum fields.
2.2 REAR PANEL VIEW
2.3 AC LINE CONNECTION
Use only a power cord that carries approvals for use in your location. The Channel’s internal power supply is
designed to operate from all nominal power sources from 100 to 240 volts a.c. at 50/60Hz without requiring
the user to change any settings. In case of failure, do not attempt to change the internal fuse because it will
never blow unless the power supply fails catasrophically. The power supply will need to be serviced by a com-
petent service technician in such a case.
PROPER MICROPHONE CABLE WIRING
Female XLR
Male XLR
AUTION
C
48V
Aphex Channel
