T-44/48 Series Amplifier
Operation Manual
T-44/48 Series | rev.
firm. 1.258 and above
10
To prevent damage to the front panel it is recommended that plastic cups or washers
are fitted underneath the rack mounting bolt heads.
It is possible to mount multiple T-44/48 Series amplifiers without ventilation gaps
between them but it is essential that an unobstructed flow of clean air is available from the front
of the unit to the rear. It is important that neither the air intakes on the front of the unit or the
exhaust vents at the rear are covered. Steps must be taken to ensure that hot air does not
continually circulate through the amplifiers from the back of the rack to the front.
The amplifier should never be exposed to rain or moisture during operation or storage. If
the unit does come into contact with moisture, remove the AC power cord immediately and
leave it in a dry and warm location to dry out.
Note that when any equipment is taken from a cold location into a hot humid one,
condensation may occur inside the device. Always allow time for the equipment to attain the
same temperature as its surrounding environment before connecting the AC power cord.
1.5 AC Power Connection
The amplifier utilises a 32A Neutrik PowerCON
TM
type locking AC power connector. Use
only an AC power cord with a correctly terminated PowerCON
TM
type (NAC3FC-HC) connector
to make the connection to the mains power supply.
The amplifiers are designed to operate on
50/60
Hz AC power. The power supply sections
automatically configure themselves for either 115V or 230V nominal voltage at turn on. The
amplifiers will operate over an extended range of supply voltages (please refer to the technical
specifications).
Note that whilst the amplifier will operate correctly at voltages indicated, the specified output
power will only be achieved when operating with the stated nominal voltages.
1.6 Audio Connections
1.6.1 Input Connections
For each input channel there is a female XLR-3 input connector. Even channel
numbers are for Analogue inputs only. Odd channel numbers are either for Analogue inputs
(when in Analogue input mode) or for AES3 input pairs (when in AES3 input mode).
•
The HOT, + or ‘in phase’ connection should be made to pin 2 of the XLR
connector.
•
The COLD, - or ‘out of phase’ connection should be made to pin 3 of the
XLR connector.
•
Pin 1 of the XLR connectors is internally connected to the chassis.
The shield of the input cable should always be connected Pin 1 of the XLR to ensure
that EMC performance and regulations are met.
Fig. 02: Pin out assignment
T-44 Analog Input/link
