SA-42T
3
Speaker Terminals
These terminals are offering 3 low voltage outputs 4Ω, 8Ω, 16Ω depending on your speaker combination. A
70V/100V commercial output is also available. Please note that one wire only should be connected to COM
screw and one wire to the selected impedance or voltage. Multiple combinations cannot be done at the output
level.
Four different types of connections are provided. The low
impedance section: 4Ω, 8Ω, 16Ω is designed for a small amount
of speakers to be connected to your amplifier. The 70V section
is especially designed for a multiple speaker distribution. When
using the 70V output, speakers have to be equipped with 70V
transformer. The maximum amount of speakers to be placed
on your distribution line is in relation to the power allocated to
each speaker. The total wattage set on the secondary side of
the transformers on your speaker line must not exceed the
maximum RMS output power: 30W or 60W. Failure to respect
this may cause permanent damage to the amplifier.
Microphone Input
This ¼ ’’ jack is a two-conductor unbalanced microphone input. If you wish to use a low impedance microphone
on a balanced line with a long cable, we recommend that you use an AM-15 adaptor to do so. If you choose to
use a Table Top microphone with an enunciator switch, keep in mind that the switch should be connected to the
two priority terminals.
Music on Hold
This output will feed music on your telephone system for people waiting to be answered. A dedicated input
should be available on your telephone system. Please refer to a qualified technician if you can’t identify this
input. Outgoing signal should be connected to G and H. Volume control is located next to the terminal in order
to provided proper level of music on the phone system.
Telephone Paging Input
This special input (terminals 1 and 3) will allow you to page in your PA system using your own telephone set. Pin
2 is Ground and Pin 4 is for manual priority switching. Any signal going through Pin 3 will automatically trigger
the priority system without any manual intervention. At the end of the announcement, the system will return to
its normal operation. A Gain control is located next to the input in order to increase incoming volume if
necessary. Final adjustment will be made with the Tel Paging volume control located on front panel.
