Velleman VM100 Mode D'emploi page 6

Connection
:
Connection
 The input (GND and in) can be connected directly to an audio source (pre-amp or mixing panel) or a volume control
(potentiometer) can be used (see diagram).
 Connect the speaker (4 ohm or higher) between the connections LS+ and GND.
CAUTION: VOLTAGES OF ABOUT 80V ARE PRESENT. MAKE SURE TO USE A SUITABLE ENCLOSURE AND ISO-
LATE ALL AC CONNECTIONS
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