Remember that in DPL and DPL-II, most of what goes to the surrounds is ambience information. This isn't usually bass-heavy. You may be getting a small amount of bass to your sub, but you'll probably not notice it.

If your fronts are truly full-range, then this should not be a problem for you; you're hearing the full signal as it was intended. If you're lacking bass, then your fronts aren't really full-range and as gonk and Bob have mentioned, they should be set to small. Center, also.

With true full-range speakers, the only bass you'll really have going to your sub would be LFE stuff from DVDs. Two channel music, of course, lacks LFE.

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Matthew J. Hill
matt@idsi.net