Ecleree MPA4-80, User Manual

4

1. IMPORTANT REMARK  
 

Congratulations! You are the owner of a carefully designed and manufactured 

equipment. We thank you for having purchased our MPA4-80 or MPA6-80 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 MPA4-80 amplifier station consists of four 77W/4

Ω

 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 MPA4-80 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

Ω

. 

Two bridged amplifiers for a common mono input. 

The MPA 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. 

Two mono amplifiers and one bridged amplifier for one common mono input. 

Useful for bi-amplified setups, with two amplifiers for mid-range speakers and tweeters and a 
third (bridged) amplifier for a subwoofer. (This amplifier does not include any filtering)