User guide

10. Grounding
D SERIES Lake Quick Start Guide rev 1.2.0
11
Connecting the amplier in three phase delta conguration
In three-phase conguration where the phases are 120 degrees apart, one can connect three balanced loads in a
delta conguration. The connection is made between the phases instead of between the neutral and a phase.
Amp
120V
120V
120V
L1
Amp
L2
L3
Amp
N N
Amp
Amp
Amp
3 phase Y 120V
3 phase delta 208V
208V
208V
208V
L1 L2
L3
Three phase delta conguration
Connecting the amplier in a split phase conguration
In two phase split-phase conguration there are two phases separated by 180 degrees. Connecting between the
phases gives double the line voltage.
Two phase split-phase conguration
10. Grounding
Use correctly-shielded balanced audio input connections to minimize hum and interference.
D Series must be grounded (earthed) with the safety ground pin to the mains distribution system.
NEVER disconnect the earth (ground) pin on the mains cable (AC power cord).
Split phase 100V
100V 100V 200V
L1
Amp
L2N
Amp
Split phase 200V
L1 L2
N
Amp