Krell Industries Power Amplifier KST100 Owner's Reference Manual page 7

Thepin assignment for the XLR is:
pin _1-= shield (ground)
.
p!n 2 = non-inverting ~nput (hot)
p~n 3 - inverting input
NOTE: The RCA center conductor for each channel is
wiredjn, parallel with pin 2, the non-inv.erted input. Only
one ot tlaese inputs should be connectecl to a preamplifier.
3. Insert the AC power cord into the receptacle located on
the back of the KST-100. Insert the other end into the
wall AC r_.eceptacle. (Refer to section C, Basic Installa-
tion and Operation, for AC power requirements)
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