Important Remark; Introduction - Ecler MPA4-80R Manual De Instrucciones

1. IMPORTANT REMARK

Congratulations! You are the owner of a carefully designed and manufactured equipment. We
thank you for having purchased our MPA R power amplifier.
It is VERY IMPORTANT that you read this manual before connecting the amplifier in order to
obtain its maximum performance.
We recommend our authorised Technical Services whenever any maintenance task should be
needed so that optimum operation shall be achieved.

2. INTRODUCTION

The MPA4-80R amplifier station consists of four 80W/4Ω 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 8Ω.
•
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 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.
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MPA4-80R