The word i was really trying to think of was it has a “richness”to it.I feel like I know what you mean. There's definitely a certain effect I aim for with designs for music. I can explain it, but it's really an effect to be experienced. There's a feeling to it. A big part of that is the tuning and port area. Thanks for letting me design it! I enjoyed doing that design.
If you ever want to expand your audio knowledge, look up what "acoustic coupling" means.
What subs will find a home in this?