Crest Audio LT Series Owner's Manual page 15

rear panel
4 Output connections
Speakers can be connected via the high current binding posts and
the industry-standard Speakon (NL-4) connectors.
Binding posts: One pair (Red- hot, Black- ground) per channel.
Speakons - One connector for each channel. In Bridged Mono
mode, the Speakon connector for Channel A is used exclusively
(see Operation Modes).
5 Ground lift switch
The recessed two-position ground lift switch is used to isolate the
amp's signal ground from the chassis/AC ground.The factory default
setting is to the right, Grounded.To lift, or disconnect the signal
ground from the chassis/AC ground, slide the switch to the left.
In situations where chassis ground must be lifted, use this switch -
never lift the ground prong on the AC connector.
6 Input connections
Input signals can be connected to the amp via the Phoenix connec-
tors, the 1/4" TRS connectors and the Female XLR (pin 2 hot) con-
nectors. Input sensitivity is .775v (0 dBv) for full rated output
power. See Connections
7 Mode selector switch
This recessed, three position switch configures the amplifier for
Stereo, Parallel or Bridged Mono operation. The default factory
setting is Stereo. See - operation modes.
features overview
Never connect a hot
(red) output to ground
or to another hot (red)
output!
In situations where an UNBAL-
ANCED signal is fed to the amp, it's
important to ground the unused
input. If the inverting (-) input of an
amp channel is left floating, the chan-
nels gain will drop by 6 dB. In effect,
the amp will not be as loud. For more
information about this, ask your dealer
or contact Crest Audio Technical
Support directly.
Do not adjust the mode
selection switch while
the amplifier is turned-on.
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