How do I connect the ELS SUB or M SUB to a dedicated 2-channel system?
The ELS Sub is a mono speaker, so the best way to place it in a 2 channel (stereo) system is to feed a left and right signal to the low level RCA sockets from the pre-amp output of your integrated or pre-amplifier. The input is electrically buffered and therefore should not load or interfere with the normal working of your amplifier. The ELS Subs circuitry joins the left and right signals together in such a way as not to ‘mono’ the feed from your 2 channel amplifier. If your amplifier doesn’t have a pre-amplifier output, it is possible to drive the ELS Sub with a high level signal. This should be the same signal you would normally use to drive the left and right speakers. In other words, either extend your speaker cables to include the subwoofer, or drive it from a separate pair of left and right cables so that it can be independently switched on or off, if your amp has such a facility.
