Wheelz, the setting for the sub level control for a given loudness level can vary, depending on the amount of voltage that the receiver is set to send to the sub, so the settings that some others use might not be relevant to you. The sub level should preferably be auto-calibrated by a receiver or with the use of a separate sound level meter. Attempting to do it by ear often results in setting the sub too high, because of a desire to "hear" what a bunch of money was used for. Ideally the sub shouldn't be heard as a separate source; the impression should be that it isn't on, but the other speakers are putting out more bass.
The EP500 doesn't come with any sort of cable, so there shouldn't be one hanging loose.
