Page 16 of 25
S-218 User Manual
v1 October 2019
6.2 - Presets and Settings
6.2.1 – Standard S-18 Preset
S-218/ST-218 subwoofers require only a single amplifier channel, and as such the preset
recalled will only require one output from your DQ Series amplifier.
6.2.2 – Cardioid Array Preset
The S-218/ST-218 can be used to create cardioid arrays as detailed in chapter 6 by
ensuring that one in three subwoofers are physically reversed, and the appropriate S-
218/ST-218 Cardioid preset is loaded into the amplifier. This preset requires three
amplifier channels.
