Crest Audio PL Series - Page 22

Appendix E Crest Audio PL Series Power Amplifiers
Models PL3301, PL4601, PL6001, PL7001, PL8001, PL9001
PL
Appendix E
PL9001 Power Amplifier - Special Functions
XLR Pin +
GAIN
Ø
dBu
40x
20x
A
B
+
AB
A
A
A
B
A
A
B
B
A
B
B
A
+
+
+
Designed & manufactured in the USA by:
Crest Audio Inc.
100 Eisenhower Dr.
Paramus, New Jersey 07652 USA
2 3
1
3
2
The PL9001 rear panel features external switches for the following:
XLR Pin+ Switch: This switch configures XLR input connection polarity. Either pin 2 or pin 3 may be
selected as the “hot” (+) pin. Amplifiers are shipped pin 2 “hot” (+) from the factory.
Gain Switch: This switch permits the amplifier to be configured for the standard input sensitivity (.775V
for rated power @ 8Ω), or for optional voltage gains of X40 or X20. Refer to the specifications for input
sensitivity values at optional voltage gains of X40 and X20.
NOTE: on the PL9001, two pairs of 5-way binding posts are provided for each channel, so that paralleling
of speakers is possible.
XLR Pin (+) Switch
Gain Switch
PL9001 - Rear View
ALWAYS power down the amplifier before changing settings
with either the XLR Pin+ switch or the Gain switch!