Electrocompaniet AW3x120-M - Manual (Page 4)

The rear panel
The rear panel of the Ampliwire AW 3x120 is equipped with XLR inputs, loudspeaker
terminals, SPAC data link and power input.
Balanced XLR operation
Use an interconnect with ground on pin 1, + on pin 2 and – on pin 3
Single ended operation
Use an RCA to XLR adapter (ECP5XLR).
Connect ECP5XLR to the XLR input.
Connect the RCA interconnect to the input on the ECP5XLR
Speakers
Connect the speakers to the + and - output terminals
Spac
Connect the EC 4.9 – AW 120 Communication cable from the Spac port to EC 4.8 or EC
4.9 preamplifier to enable automatically bridging.
Bridge (mono) mode
When the amplifier is used in mono mode the XLR input 1 and Speaker output 1 is used.
If you use the EC 4.9 – AW 120 Communication cable and connect this from Spac output
to EC 4.9 or EC 4.8, the AW 3x120 will switch into mono mode automatically.
To manually switch the AW 3x120 into mono mode push the bridge button. Note that
when an EC 4.9 – AW 120 communication cable is connected to the AW 3x120, this
button is not used.