The Ground Lift Switch; The Stereo Headphone Jack; The Rear Panel Input Jack - CARVIN QUADX User Manual

Quad X-Amp

3.9 The Ground Lift Switch

Set this switch for the lowest noise when using either the stereo or
mono balanced outputs. When the switch is in the lift position it
breaks the connection to pin 1 which is normally grounded. This
breaks any ground loops between the preamp and the gear it's
feeding.

3.10 The Stereo Headphone Jack

Use the stereo headphone jack for private practice or whenever you wish to
use phones. The level at the stereo phone jack is controlled by the stereo out
control on the front panel.

3.11 The Rear Panel Input Jack

Use the rear panel input jack when you need to connect to the input of the
Quad X-Amp from another piece of gear in your rack. The rear input feeds
the normal connection at the front input jack. When a plug is inserted in the
front jack, it overrides the rear input. Only one input jack can be used at a
time.
Rear Panel Connections
3-3
Section 3
MO
LIFT
GND
HT
PHO
PHONES
INPUT
FRONT INPUT
DEFEATS
REAR INPUT