Re: What is the audible result of damping?
Mark,
Cabinet tuning, Fb, is determined by the volume of the box, and length and diameter of the port. Fb is independent of the speaker's Fs, it is a Helmholtz resonance.
Whether the box has one, two or four speakers, high or low BL, series coils, speakers or wire, the Fb remains the same.
After reading Jay's posts #16 and #18, I'd suspect the problems he mentions are faulty passive crossover components, or partially burned 15" voice coil, or both.
The low damping factor would just make the speakers sound bad, but not different at different drive levels.
