Page 14 of 25
S-218 User Manual
v1 October 2019
6.0 – Powering the System
The S-218 subwoofer can be powered from any amplifier & DSP combinations with the
relevant high & low pass filter, and limiter settings. However, due to the self-contained
nature of the package, the use of DQ Series advanced system amplifiers is highly
recommended. The use of DQ Series amplifiers provides a neat and flexible system that
will encompass all requirements for the system to function correctly, as well as providing
user control for room EQ and system alignment.
6.1 - Amplifier and Processing Requirements
6.1.1 - Connections
The S-218 requires only a single amplifier channel. Inputs to the S-218 enclosure are on
a single Neutrik SpeakON NL4 as illustrated below.
Two-core cable should be used for connecting S-218 subwoofers, and the connections are
as follows:
SpeakON connection
1+
1-
2+
2-
Drive unit connection
LF +
LF -
N/C
N/C
6.1.2 - Connector Options
The ST-218 is supplied as standard with a single NL4TMP connector, which forms an IP54
rated connection when used with the STX series of SpeakON cable connectors. For more
demanding environments, S-218s can be supplied with other options by special order –
please contact EM Acoustics to discuss your requirement.
