All Sub loudspeakers are fitted with Euroblock connectors. These have two pairs of terminals.
Sub uses only 1 and 2. Pins 3 & 4 are linked to pins 1 & 2 respectively, and provide an easy way of connecting to a further Sub. No more than two Subs should be connected to a single amplifier channel.
For connection, we recommend using a flexible cable with a minimum cross-sectional area of 2.5mm². When wiring loudspeaker cables be careful to observe the correct polarity of the cable and connector at both ends.