Manual

D-POWER
A
Z ≥ 2 *Z
min
Input
Ground
Lift
Input Ground Lift in position:
grounded
LINK BInput
Channel B
3
12
2
3
1
1
3
2 2
3
1
To
Channel B
To
Channel A
Input
Channel A
LINK A
ALWAYS SWITCH OFF THE AMPLIFIER
BEFORE CHANGING MODES
3 INSTALLATION
USER MANUAL
D - P O W E R S E R I E S
P. 14
D - P O W E R
S E R I E S
3.6.3 Mono-Bridge Operation
One-channel mono bridged operation.
The second amplifier channel processes the same input signal, but with reversed
phase. The (single) load is connected between the two positive channel outputs
using a suitable connected SPEAKON connector. While the total output of the
amplifier remains the same, both the available output voltage and the minimum
impedance that can be connected are doubled, as compared with stereo ope-
ration. Only channel A-Input is active. A signal feeding channel B will have no
effect on the output. Turn the volume of channel B down to zero.
WARNING !
In Mono-Bridge mode RMS output voltages are as high as 230 V. Wiring to
the speaker loads must conform to NEC Class 3 safety standards or its equi-
valent that meets all national and local electric codes.
All customer specific cables may only be manufactured by qualified suppli-
ers/personnel. All cabling or rewiring work must be carried out by qualified
personnel.
* Z
min
= 4 Ω for D-POWER 2, 3 and 4
3.7 Wiring
3.7.1 XLR Connection
XLR: Pin 1 = Ground (or lifted via 15 Ω resistor) (See 3.5 Ground Lift)
Pin 2 = Hot (inphase)
Pin 3 = Cold (out of phase)
Always use symmetrical (balanced) shielded cable to connect the amplifier.