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Add a subwoofer to the center channel?

I have very larger Duntech Crown Prince speakers and the best center I could find for now is a Dunlavy SC1/av which is a bookshelf.  It doesn't sound as "big" and authoritative.  I wonder if adding a small REL sub to the center would help.  

Right now, I do have them all set to "Small" so my big SVS subs should be handling the center's low octaves right?  Is this really the same thing?  Or would adding a small sub aide in bringing more weight to the center?

Thoughts?
dtximages

Showing 2 responses by erik_squires

erik_squires
15,803 posts
 
This really sounds like a poor system integration problem you should not need a new sub to fix. In my set up I use 1 subwoofer and there’s just no difference. The center channel does not sound tinny, and effect sounds don’t sound like they are hollow in the center.

I’m not familiar with Marantz but make sure the center bass is set to go to your main or subwoofers.

It also sounds like you really really want another sub.  If that's the case, go right ahead. :) 
erik_squires
15,803 posts
 
I think the end to your question comes when you ask yourself, exactly how are you going to configure and set up a center only sub?  Work through that first and get back to us. :-)

The issue with center channel speakers tends to be resonance from where they have to be placed.  Make sure you are taking advantage of room correction while it is engaged.  If this is done correctly then you should not be able to hear any difference with the sound quality as effects move across the front.

Setting the center to "large" will only distress it. 
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