Unless otherwise stated I expect that manufacturers would quote the most optomistic response, which is in room.

That 18 Hz for the EP350 is the -9db point. In my room I get a flat response down to about 21Hz, but my walls and ceiling are concrete, so I get about as much room gain as is possible.

The EP350 is certainly more than enough for any music, and quite impressive for movies.

Fred

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Blujays1: Spending Fred's money one bottle at a time, no two... Oh crap!