Comparison of Volt B2500.1, B250.8, RV3143 and S/S 25W8565-01

I have a question for those who have experience with Volt B2500.1, having just acquired a pair of my own. I have noticed that in a bass reflex enclosure it models as having a peaked (i.e., high Q) response. How did you deal with this peak? I recall reading a comment someone made saying that the port should be stuffed and another comment saying that such a response is best modelled with a program such as Hornresp.

Any recommendations much appreciated!

BTW, my application is domestic use monitor-style 3-way.