Loudspeaker systems connected to channels A and B (or C and D) have to be
connected according to the polarity indicated. Please, make sure to mind the
minimal impedance of 4 ohms per channel.
For bridged operation, the load has to be connected according to the BRIDGED-
label and the Mode switch needs to be set to “Bridged”. Please, make sure to
keep in mind that in Bridged Mode the minimal impedance is 8 ohms and that
the input audio signal has to be fed to channel A (or C).
The speaker output jacks are suitable for connecting speaker cables with a maximum diameter of 2.5
. The provided screwlock connectors can be screwed to the power amp to prevent inadvertent
disconnection. Power amps offer low impedance outputs and / or oating outputs (ISOLATED
OUTPUTS) with nominal voltages of 50V, 70V and 100V, depending on the amp model.
The symbol of a FLASH at the loudspeaker connectors indicates that these outputs
may carry high voltages which, when getting in contact with, can cause serious harm.
Establishing connections at these outputs is only permissible for skilled persons who
have been instructed on how to do so.
Never connect a hot output to a ground or another hot output! Always turn off the
ampli er before making connections!
PCL 1125T, PCL 1225T & PCL 1240T
Integrated audio output transformers convert the power amp’s nominal output voltage to 50V, 70V and
100V. The ampli er models PCL 1225T and PCL 1240T present all voltages simultaneously at the
oating outputs so that the power amp channels can be used in any combination of possible output
voltages. Mixed operation of low-impedance speaker systems and oating loudspeaker lines on a single
power amp channel is possible as well.
The use of loudspeaker systems with 100V or 70V matching transformers to reduce the effects of cable
loss is recommended when the distance between power amp and speaker systems exceeds
In addition, this also facilitates distributing the output power among loudspeakers.
As many loudspeaker systems as possible can be connected, as long as the speaker network’s overall
power consumption does not exceed the power amp’s rated output power while at the same time not
falling below the nominal load impedance of the power amp outputs. Please refer to speci cations in
the appendix for individual values of the rated output power and nominal load impedance of power amp
Con guration example: PCL 1240T with 100V speaker systems connected.
Maximum working loads with 25W/100V and 6W/100V loudspeaker systems.
To Next Page
Loading...
Need help?
General
