Palmer PGA04 ADIG-LB Manual De Usuario página 8

CONNECTIONS:
Connect the speaker output of the amplifier to the "Speaker Input" jack
on the PGA04. Turn the amplifier to 8 ohms or use the appropriate output
jack. A speaker cable with the corresponding cross sections (min. 0.75
mm²) should be used. If an additional box is to be connected (during live
operation), the "Speaker Thru" socket is available for this purpose. The
internal load box is then switched off; next set the impedance selec-
tor on the amplifier according to the resistance value of the box. The
built-in load box can handle a maximum of 100 watts of continuous power.
With an externally connected speaker, amplifiers of up to 200 watts can
be connected. Please keep in mind that the built-in load box converts
the amplifier power into heat. The unit should therefore be built into a
19" rack with enough space for adequate air circulation. The LED-chain
on the front panel gives information about the power handling capacity
of the load box. Never let the last red LED display segments illuminate
continuously. In this event, there is an acute risk of overloading the
unit. Since for an externally connected speaker, the internal load box
is switched off, the LED indicator on the front has no function in this
case.
For further processing of the signal (Recording, PA, effects) two unbal-
anced jack outputs and a balanced XLR jack are available. All outputs can
be used in parallel. Only high quality shielded cables should be used for
connection. In the studio, the XLR plug should preferably be connected to
the microphone input of the mixer using a micro cable. This output is low
impedance and also provides the cleanest signal over long cable lengths.
A ground lift switch disconnects the input ground from the output, thus
preventing possible ground loops.
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