DIY Subwoofers - General Discussion
I'm sure this has been covered, but wanted latest update.
What are the limits to the second port resonance frequency in terms of magnitude and frequency? Example: (sorry I don't have pic) A Steve LLT 15" RLP d2, 8 cu. ft., Fb 15hz, port 6.7" dia. Peak is at 140hz, not even 1 octave above normal...