LD Systems AMP 405 Manuel D'utilisation page 8

CONNECTIONS AND OPERATING/DISPLAY ELEMENTS
3
POWER IN
1
Terminal block connection to supply the device with power. To avoid damage to the device, only
use the original mains adapter (mains adapter in packaging content).
CABLE STRAIN RELIEF
2
Use the cable strain relief for the mains adapter's flexible cable to protect the device's power
terminal block connection and the mains adapter's terminal block against damage and to
prevent the terminal block from being pulled out unintentionally.
INPUT 1–4
3
Analogue audio inputs with balanced terminal block connections. The +, -, and G poles are for
the balanced input signal (suitable for unbalanced cabling). Terminal blocks are included in the
packaging content.
Stereo, Parallel, and HPM mode: To control INPUT 1 and 2 with a stereo signal, for example, and to
supply INPUT 3 and 4 with the same signal, a connection must be made between the corresponding
inputs using a jumper cable (see CABLE CONNECTIONS in this manual).
If the X-OVER crossover function is also activated, for example, for a 2.1 system, no connection via
a jumper cable is required. The signal present at INPUT 1 and 2 is then automatically relayed to
INPUT 3 and 4.
OUT 1/2
4
Speaker outputs 1 and 2 for connecting low-impedance speakers (ST and PAR modes: min. 4 ohms
each; HPM mode: min. 2 ohms). Please ensure terminal block poles are correctly assigned
(see TERMINAL BLOCK CONNECTIONS in this manual). The total power handling of the connected
speakers should be approximately equal to the amplifier power.
OUT 3/4
5
Speaker outputs 3 and 4 for connecting low-impedance speakers (ST and PAR modes: min. 4 ohms
each; HPM mode: min. 2 ohms). Please ensure terminal block poles are correctly assigned
(see TERMINAL BLOCK CONNECTIONS in this manual). The total power handling of the connected
speakers should be approximately equal to the amplifier power.
8
6
ON
1 2
4
8
7 9
5
1
2