EM Acoustics MSE-218SP self-powered subwoofer - Manual (Page 9)

Page 9 of 20
MSE-218SP User Manual
v1.1 February 2013
3.0 – Mains Power Requirements
3.1 - Power Supply
The MSE-218SP utilises a pair of UMAC TM Class-D amplifier modules with a Power Factor
Correction (PFC) power supply, ensuring universal mains voltage operation. The amplifier
modules can safely operate with voltage ranges from 100-120VAC and 200-240VAC.
Important Note – please be aware that using these products on 100-120VAC will draw
more current from the mains supply than using at 200-240VAC.
3.2 - AC Input Connector (BLUE)
The blue Neutrik PowerCON connector supplies mains power to the MSE-218SP. This
connector is rated at 20 amps and is locking to prevent accidental disconnection. Any
additional loudspeakers connected to the MAINS LINK (GREY) connector also take their
power from this primary input connector, and as such you must ensure the total load does
not exceed 20 amps.
3.3 - AC Link Connector (GREY)
The grey Neutrik PowerCON connector supplies mains power to additional loudspeakers in
the chain. The PowerCON connector is a locking design, which prevents accidental
disconnection. Cables used to connect additional loudspeakers should be of a suitable
gauge to support the potential current draw from multiple loudspeakers.
3.4 - Maximum Number of Looped Mains Connections
It is very important that the total current draw does not exceed 20 amps. Please
remember that any loudspeaker connected in the chain will draw its power from the blue
mains input connector on the first loudspeaker in the chain. Detailed below are the
maximum recommended numbers of MSE-218SP subwoofers that can be connected at
different voltage and supply current limits.
20-amp supply limit:
Product 115VAC 230VAC
MSE-218SP 1 looped (2 total) 3 looped (4 total)
16-amp supply limit:
Product 115VAC 230VAC
MSE-218SP no looping 2 looped (3 total)