Seal a ported sub?

I have 2 Klipsch 10" subs. They are both from the Klipsch Reference line which is supposed to be their top quality. I know that there are better subs out there but I want to optimize what I have before going to new equipment. One of the subs is a sealed unit. The other is front ported with a rectangular port located in the front at the bottom. This is the sub......https://www.klipsch.com/products/reference-subwoofers?model=r-110swMy listening preference is for 2 channel for music only. I have read many recommendations in this forum that sealed subs are better for music, where ported ones are mostly preferred for HT where movie music and sound effects are predominate. Here are my questions.....While I don't care about booming/overpowering bass but rather about the quality of bass in music, would closing/sealing the port on the ported sub gain any benefit?If so, what material/process would I use to do so? I realize that speakers are designed to operate with their complete construction in harmony. After all, I'm just trying to augment my stand mounted speakers with the larger 10" subs to provide better bass.Thanks