Join Date: Dec 2008
Location: San Diego County, CA, USA
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By the way, what line-level input(s) does your sub have? If it has both left and right inputs, then you could use a Y-splitter to parallel the signal coming from the source device between the amp and sub. On the other hand, if your sub only has a single line-level input, then you'd need a separate summing circuit (do NOT use a Y-splitter to combine the left & right channels!), so you might as well try hooking everything up like you originally suggested.