System Connectivity; Cable Length And Specification; Crossover Cable Use - EM Acoustics EMS-41 Product User Manual

6.4 - System Connectivity

6.4.1 - Cable Length and Specification

All cables add to the system impedance, and as such careful selection is required depending on your
amplifier setup and overall system impedance. Cables with a cross sectional area of less than
2
2.5mm should not be used. Recommended maximum cable lengths are given below:
Conductor Area
2
2.5mm (14 AWG)
2
4.0mm (12 AWG)
2
6.0mm (10 AWG)
6.4.2 – Crossover Cable Use
The use of a pin-swap or "crossover" cable can allow for neater cable solutions when
sending different amplifier signals to the same location. Because pins 2+/2- are linked
through inside all EM Acoustics loudspeakers, using a 4-core cable to one loudspeaker
(carrying two different signals) allows a crossover cable to be used to link out of the first
loudspeaker into another, thereby feeding it from a separate signal.
Crossover cable specifications
Connector A Pin
1+
1-
2+
2-
A crossover cable can only be used on the speakON connections on the EMS-41, not on
the Phoenix connector.
Maximum Recommended Cable Length
2 ohms
15m
20m
30m
4-core "crossover" cable wired as detailed below used to link
between the two loudspeakers. This will ensure the second
EMS-41 loudspeaker is fed from the signal carried on pins
2+/2- of the original cable
4-core cable from amplifier to first EMS-41 loudspeaker.
Signal for first loudspeaker on pins 1+/1-, signal for second
EMS-41 loudspeaker on pins 2+/2-.
Connector B Pin
2+
2-
1+
1-
4 ohms
30m
40m
60m
Page 19 of 25
8 ohms
60m
80m
120m
EMS-41 User Manual
v1 November 2019