Passive bi-amplification mode
3.4.5 Active bi-amplification mode
A pair of M1s, each with two analog input boards installed, can be used in active bi-amplification mode. In such a case, each output
board of each M1.1 feeds the speaker's drivers of a given frequency range. This configuration is optimal when an active crossover
network is used. Optimal global/local feedback ratio can be set for the different frequency bands. The picture below shows how
they should be connected in this case.
Active bi-amplification mode
Rev 3.0
M1.1 User Manual
21
L1 Preamplifier
M1 Left Mono Power Amplifier
Left Speaker Binding Post
Right Speaker Binding Post
Balanced XLR cables
M1 Right Mono Power Amplifier
L1 preamplifier
M1 Left Power Amplifier
Left Speaker Binding Post
Right Speaker Binding Post
Balanced XLR cables
M1 Right Power Amplifier
Right Channel Active Filter
Left Channel Active Filter
Input
HF Output
LF Output
Input
HF Output
LF Output
Balanced XLR cables
Balanced XLR cables
