Drubin,
I am not using this scheme. After researching, I determined that the only way that a ground connect failure could occur is for the subwoofer amp to fail and short everything to ground. Since my O-audio subwoofer amp does not have a common ground connection, I am hooking both negative and positive leads as normal as this is a very remote possibility. Also the O-audio is a digital amp. I do know of someone else using Ayre with Martin Logan subs who connects both Pos and Neg terminals and has no problems.
You must determine that your amp does not have a common ground connection. It may not be enough to simply lift the common ground from the plug if you have one. The amp I have did not have a three prong plug, only two.
This doesn't directly answer your question, I know but may give you an alternative connection.
drew.
I am not using this scheme. After researching, I determined that the only way that a ground connect failure could occur is for the subwoofer amp to fail and short everything to ground. Since my O-audio subwoofer amp does not have a common ground connection, I am hooking both negative and positive leads as normal as this is a very remote possibility. Also the O-audio is a digital amp. I do know of someone else using Ayre with Martin Logan subs who connects both Pos and Neg terminals and has no problems.
You must determine that your amp does not have a common ground connection. It may not be enough to simply lift the common ground from the plug if you have one. The amp I have did not have a three prong plug, only two.
This doesn't directly answer your question, I know but may give you an alternative connection.
drew.