Wayne Parham Messages: 18789 Registered: January 2001
Illuminati (33rd Degree)
Unless you are setting up a multi-speaker system, I don't think group delay in the bottom octave will be of much significance to you when building a bass-guitar speaker. Go for an alignment that gives you the response that you want, has good bass extension, and use a motor that doesn't distort much even at high output levels. Those are the things that are always important, and I think you'll find those are the things that will matter to you the most.