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Group delay in subwoofers

I understand the phenomenon of group delay when subwoofers are connected to a preamp and that they need to be placed approximately 8 ft closer to the listener than the mains.  Is this also the case when connecting a sub through the speaker level inputs from an amplifier or is group delay much less of an issue in this configuration?

jc4659

Showing 4 responses by jc4659

jc4659 OP
572 posts
 
Thanks, Erik.  I absolutely agree and would need to buy a processor to do it the right way.
jc4659 OP
572 posts
 
Thanks for the comments.  I had a feeling that it wasn't quite as simple as I had hoped.

jc4659 OP
572 posts
 
I've read it and unless you have the tools and patience to be fanatical about it then you have to live with compromises which are clearly audible.
jc4659 OP
572 posts
 
@gillatgh I have the sound Doctor cd with all the low frequencies and have used the out of phase method to find the null zones.  Unfortunately the best location is unacceptable to my wife.  Like I said, it's all about compromises.  Congrats on dialing it in.  You know when it's right.
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