E120 - Q. I had/have a Systemline E100, can I use the existing wiring?
Answer:
Changing an E100 system to E120 is very easy as E120 fits into the same back box as E100 and uses the same connections for speakers and line auxiliary input. You will however need a small adaptor for the power supply, as E120 uses a slightly larger socket. You can purchase a small 2.1mm (female) to 2.5mm (male) DC power adaptor from Amazon:
https://www.amazon.co.uk/Ex-Pro-DC-Adapter-2-1mm-Female/dp/B004FZ050G/ref=sr_1_12?crid=2YBUGO5YYL3QH
Use the adaptor on the end of the E100 power cable, making it possible to plug into E120.
Note that the left loudspeaker termination is reversed so, you'll need swap the +/- terminations around on that channel only. See photos
E50/E100 speaker terminals
E120 speaker terminals.
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