Sul manuale delle Canton Movie 80 CX dice che per collegare il subwoofer ci sono due possibilità:


Screw terminals: For connections to the loudspeaker outputs on your amplifier, the Canton active subwoofer is fitted with two sets of screw terminals marked HIG LEVEL INPUT. When connecting, please note the
correct layout of the left and right ports and the polarity of the terminals (red = plus / black = minus). If the polarity is accidentally reversed, the
sound from the subwoofer will be unnatural with poor bass.



Cinch sockets: The Cinch inputs on your subwoofer are marked LOW LEVEL INPUT and are designed for connection to a preamplifier output or a special subwoofer output (LFE) on your control unit.


Considerando che sotto una certa frequenza i suoni non sono stereo, quale collegamento va usato?