Specifications

Operation 9
5. OPERATION
IMPORTANT
your
may be you
Before making any connections
Before operating
All signal source equipment should be adequately earthed. This not only ensures safety but
everybody else's as well. Faults can and do occur in mains connected equipment where the
chassis can become “live” if it is not properly earthed. In these instances, the fault in a “floating”
(ungrounded) piece of equipment will look for the shortest path to ground, which could possibly be
the amplifier's input. If the fault current is large enough, it will destroy the input to your amplifier and
look for the next available path, which !
to theAV2.2P, observe the following:
Ensure the mains voltage supply matches the label on the rear panel of the amplifier (+/- 10%).
Ensure that the power switch is OFF.
Ensure that all system grounds (earth) are connected to a common point. Avoid powering equipment within a
system from multiple power sources that may be separated by large distances.
Check the continuity of all interconnecting leads to the amplifier; ensure that there are no open or short circuited
conductors.
Ensure that the power handling capacity of the load (speakers) can adequately cope with the power output of the
amplifier.
the AV2.2P, ensure that:
- The attenuators are at the “OFF” position (fully anticlockwise).
- The GROUND LIFT Switch is not engaged (should be in the “out” position).
- The BRIDGE Switch is not engaged if you are not running the amp in bridged mode.
Powering Up
Level Matching
Sensitivity
REMEMBER
last on first
off
down
NOTE:
input sensitivity
The amplifier should be the piece of equipment that you turn and the piece of equipment that you
turn .
We recommend turning the attenuators on the amplifier when turning the unit on.
The normal operating position for the attenuator is the max position (fully clockwise, no attenuation). In this
position the amplifier operates at full gain. Turning the attenuator down (anticlockwise), reduces the input
sensitivity.
If full power output is required, you should operate the amplifier with the front panel attenuator above the half way
(12 o’clock) position, otherwise clipping of the input circuitry with resultant distortion will occur before full output
power is achieved.
The amplifier is a linear device operating with a fixed input-to-output voltage gain (less attenuation). The
maximum output voltage swing is determined by the applied mains voltage, load, load type and the duty cycle of
the applied signal.
The for theAV 2.2P when the attenuator is at maximum position (fully clockwise) is nominally:
+ 4.0 dBu (1.23 Volts) for rated Power into a 8 ohm load.
AV2.2P