UPA-120 USB
© Copyright LOTRONIC 2012
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30. USB LEVEL CONTROL
Use this button to adjust the level of USB input
31. LOOP BUTTON
This button is used to make a loop either one file, either all the files
32. NEXT BUTTON
This button is used to select the next MP3 file)
33. PLAY / PAUSE BUTTON
Each press of the button to change from play to pause or from pause to play
34. PREV BUTTON
This button is used to select the previous MP3 file
35. DISPLAY
The display shows : playback state ( play, pause, stop ), time, the current play track mp3 file and the total of files
SPEAKERS CONNEXION
On the 4-16 Ohms output, you can connect several speakers.
Note : The total impedance of the speakers must to be from 4 to 16 Ohms. ( Two speakers in parallel = impedance divide by 2 ), Two speakers
in serie = impedance x2 )
Connect the 4-16 Ohms output of the power amp socket of the speaker
Connect the com socket of the power amplifier on the – socket of the speaker
On the 70V output, you can connect several PA speakers.
Note : The total power of the PA speakers is equal to power of the power amplifier. For example, if you have a 60W power amplifier and 15W
PA speaker, you must connect only 4 PA speakers ( 15Wx4 = 60W )
Connect the 70V output of the power amp socket of the PA speaker
Connect the com socket of the power amplifier on the – socket of the PA speaker
Note : In P.A., for more operating security, you must to keep 20% of free power
On the 100V output, you can connect several PA speakers.
Note : The total power of the PA speakers is equal to power of the power amplifier. For example, if you have a 60W power amplifier and 15W
PA speaker, you must connect only 4 PA speakers ( 15Wx4 = 60W )
Connect the 100V output of the power amp socket of the PA speaker
Connect the com socket of the power amplifier on the – socket of the PA speaker
Note : In P.A., for more operating security, you must to keep 20% of free power
