U UNDERSTANDIN Member Joined 2005 2005-07-24 12:23 am #1 2005-07-24 12:23 am #1 Is a zobel circuit necessary for a subwoofer? S simon5 Member Joined 2004 2005-07-25 7:16 am #2 2005-07-25 7:16 am #2 No. Status Not open for further replies.