Ecler MPA 4-400R - Manual (Page 10)

10
3.7. Output connections
The OUTPUTS section at the rear panel has screwable terminals (33, 34, 35, 36), one for each
amplifier.
The attenuation controls and the output configurations are described later in paragraph 3.8.
The cable which connects the speakers to the amplifier should be high quality and as short and
thick as possible. This is important when covering long distances; For up to 10m we recommend a cable
section not smaller than 2.5mm². For longer distances we recommend 4mm².
ALWAYS USE CLASS 2 WIRING FOR THE SPEAKERS CONNECTION.
Remember that the minimum load impedance for stereo or mono amplifiers is 4
. In bridged
mode the impedance must be not less than 8 . For a reliable operation under any circumstance connect
lower load impedances than just specified.
Attention: use only the indicated terminals when using the amplifiers in bridge mode.
Connect the terminal blocks securely, removing the cable cover 5÷7mm from the end.
CAUTION: The output connectors are HAZARDOUS LIVE.
Be sure to avoid leaving wires exposed. This can cause
short-circuit and risk of electric shock.
3.8. Output options
1 mono
4 mono amplifiers
2 stereo 2 stereo amplifiers
3 bridged 2 bridged amplifiers
4 combination 1 bridged amplifier and 2 mono amplifiers for a common mono input
5 combination 1 bridged amplifier and 1 stereo amplifiers for 2 different stereo amplifiers
WARNING: The output TERMINALS, marked with this symbol
are HAZARDOUS LIVE
terminals.
The external wiring connected to these TERMINALS must be installed by an INSTRUCTED
PERSON or using ready made leads or cords.
N. ACTIVE VOL CH 1 CH 2 CH 3 CH 4
1 CH1,2,3,4 + - + - + - + -
2 CH1,2,3,4 + - + - + - + -
3 CH1,3 + BRIDGED - + BRIDGED -
4 CH1,3,4 + BRIDGED - + - + -
5 CH1,3,4 + BRIDGED - + - + -