7
The Back Panel Operation
Main AC Inlet (IEC standard)
This inlet fits a standard computer office machine AC cord interconnect.
The Fuse is located just above the plug receptacle. The correct voltage is
displayed in the upper left corner of the holder and should read correctly
with the rest of the printing on the amplifier. If a fuse blows replace it
ONLY WITH THE SAME TYPE AND SIZE. The voltage of operation
will be marked on the back of the unit.
Speaker Outputs
There are (4) speaker outputs provided (2) NL4 connectors and (2) ¼”
jacks. For 4 and 2 Ohm operation we recommend using the NL4
connectors as they are much more robust than the ¼” type and will
deliver more power to the speakers. The hot pins on the NL4 are the pins
1 + and -. The NA-600 power amplifier @ full limit puts out: @ 8
Ohms 270 Watts RMS, @ 4 Ohms 435 Watts RMS, and @ 2 Ohms 630
Watts RMS.
Recording Output and Ground Lift
The 3 pin XLR jack provides the direct connection for a recording or
live P.A. console. It is fully balanced and is controlled by the D.I. level
control on the front panel. The ground lift effects only pin (1) of the
XLR and breaks the ground path from that pin to the chassis to reduce
ground loop induced hum and noise.
