FiveO MAS400, Owner'S Manual

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 Owner’s manual 

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ENGLISH

CONNECTORS

RCA INPUTS
MAS400

 features a stereo input section with two – left and right – unbalanced RCA connectors for connection from unbalanced sound 

sources, like mixer, CD player and TAPE output signals. You could also use these inputs even to connect outputs of a stereo audio board 
or a stereo keyboard. 

XLR INPUTS
MAS400

 features also a stereo input with two – left and right – balanced XLR connectors for connection from balanced sound sources, 

like professional mixer, CD player, stereo audio board etc. 

XLR OUTPUTS
MAS400

 features a stereo output section with two – left and right – balanced XLR connectors for connection to further subs composing 

your sound system. Please note that these outputs are independent from PHASE, X-OVER, LEVEL and LOW-CUT settings, thus allowing 
you to make individual adjustments for every subwoofer.

CONTROL ELEMENTS

PHASE

This switch allows you to immediately improve your subwoofer response, in case of phase problems due to environment and subs placement. 

[!] Before engaging/disengaging this switch, please turn off your subwoofer(s).

X-OVER

This knob allows you to choose the best crossover frequency between your subwoofer and the other speakers. Make the initial adjustment 
close to your speakers roll-off frequency. 

[!] Before making any adjustment to this pot, please reduce the LEVEL knob setting.

LEVEL

This knob allows you to set the level of your subwoofer. Make the initial adjustment checking the maximum SPL stated for your 
speakers, considering that your sub should have at least 3dB of SPL more. Then make adjustments using this pot, without turning off 
your subwoofer(s).

LOW-CUT

This selector allows you to choose the best low-cut frequency for your subwoofer. In this way you could tune your subwoofer lower 
frequencies behaviour, for example in case of bass boominess or redundancy due to environment acoustic. 

[!] Before moving this selector, please reduce the LEVEL knob setting.

MAINS 

POWER ON/OFF

Use the POWER switch to turn ON and OFF the unit. The top left corner ON LED is lit when the system is ON.

[!] Before turning ON or OFF the unit, please be sure that LEVEL knob is in “∞” position.

AC INPUT

This IEC standard receptacle contains also a fuse-holder. Use only the right type (and value) replacement fuse!
An IEC power cord is supplied in unit package.

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