Ecler MPA 4-400R - Manual (Page 5)

5
The MPA4-400R amplifier station consists of four 410W/4  amplifiers which can be configured
through a set of switches found on the rear panel. This allows multiple amplification setups useful in
many situations, for example:
 Four mono amplifiers for four different mono inputs.
When setup this way, the MPA R is able to amplify four different audio signals, each one having a
dedicated volume control.
 Four mono amplifiers for one common mono input.
The amplifier operates now with just one input signal for all amplifiers, but preserves the ability to control
each channels volume independently. This setup is useful when distributing signals to different zones.
 Four mono amplifiers for one common stereo input.
This setup is similar to the previous example but the input is now a stereo signal. The amplifier adds
both stereo channels together converting them into a mono signal.
 Two stereo amplifiers for two different stereo inputs.
Each stereo channel offers a dedicated volume control. Useful for addressing two zones with two
different stereo signals.
 Two stereo amplifiers for one common stereo input.
This setup is similar to the previous example but the input is now a single stereo signal which is fed to
both amplifiers.
 Two bridged amplifiers for two different mono inputs.
Now you get a typical stereo amplifier configuration. With a bridged amplifier you obtain doubled output
power with a load of at least 8
.
 Two bridged amplifiers for a common mono input.
The MPA R operates now with a single mono signal for two mono amplifiers, each one with its own
volume control.
 Two bridged amplifiers for two different stereo inputs.
You can obtain two zones with independent volume control and two different stereo signals, but these
stereo signals are internally converted to mono in each bridged amplifier.
 Two bridged amplifiers for a common stereo input.
This setup is similar to the previous example but the input is now a stereo signal. The amplifier adds
both stereo channels together converting them into a mono signal.
 One stereo amplifier and one bridged amplifier for a common stereo input.
Useful for setups where a stereo amplifier drives the mid-range and high frequency speakers while a
second, bridged amplifier drives a subwoofer. This multichannel amplifier features a low-pass filter to
operate on a subwoofer system and a high-pass filter for the mid-range speakers and tweeters.