PAGE 60 / 80 NXAMPMK2 USER MANUAL
LINKING SEVERAL DPU TOGETHER
With some setup it could be useful to link several DPUs together. For example, with active setups,
using NXAMP4x1mk2 for HF and NXAMP4x2mk2 for LF, or with GeoT setups, requiring more than one
NXAMPmk2 to feed all channels, or with STM to feed a four-way system using bridge amplifiers.
Each time a DPU has nothing displayed on a line of one of its displays it means that the corresponding pins
on the associated speakON connectors are floating. Thus, it can be feed with other DPU output.
The following example will show how to connect two DPUs together to feed a speakON 8 connector to a
complete STM system (S118 + B112 + M46).
• First NXAMP4x4mk2 will run STM M46 + B112 in stacked mode, feeding Main boxes M46 in active on
two channels, and the STM bass box B112 on two other bridged channels. The DPU outputs will then
be:
Note that the 1+/1- pins of the first SPK4 are not connected to anything and that the corresponding display
line is empty.
• Second NXAMP4x4mk2 will run S118 in Omni mode on two other bridged channels.
Note that this time the 2+/2- pins on the first SPK4 are not used.
We will now use a SPK4 link cable to plug to link the first SPK4 output of the second DPU in the first SPK4
output of the first DPU. Thus, the S118 signal will be also available on the SPK8, together with B112 and
M46 allowing the user to have only one speakON 8 cable to feed up to 3 x S118, 3 x B112 and 3 x M46.
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