Back Panel - Phonic MAX250 User Manual

BACK PANEL

6. Channel 1 and 2 Inputs
Connect your source to either the XLR or 1/4" phone jack, which
are commonly, used for both mobile and installation set-ups.
They provide a good combination of ease of connection and
resistance to corrosion. The XLR inputs are wired as per the
following convention:
7. Stereo/Parallel Switch
These type of jacks feature on much audio equipment and are
convenient if the amp is frequently connected and disconnected,
such as for mobile set-up. The plugs used should be wired as the
following convention:
6
8
9
7
In Stereo operation, two separate signals are treated separately
by Channels 1 and 2 of the amplifiers.
In Parallel operation, one signal is treated by both channel 1
and 2 of the amplifier. In other words, a signal connected to Input
Channel 1 or Channel 2 (6) is sent to both Output Channel 1 and
Channel 2 (9).
This switch's setting should only be altered when the
amplifier is off, otherwise the speakers' components could
be damaged.
8. Ground Lift Switch
This switch allows the circuit and chassis grounds to be separated
in case on a ground conflict. In normal use the switch should be
in the Ground On position. Lifting the ground (Floating position)
may resolve the ground conflict, but which means that circuit
grounding depends on other connected components. Deficiencies
in other components' grounding will affect the sound and a serious
electric fault with the amplifier could damage other components
in the system.
For the best combination of safety and performance, it is highly
recommended to keep the switch in the "Ground On" position.
9. Binding Post Outputs
These are suitable for banana plugs, spade lugs or bare wires.
Spade lugs and bare wires should both be screwed done tightly to
exclude oxygen, and care should be taken to avoid loose strands
of wire that may cause short circuits.
6
MAX250 / MAX500