So my B115E 1x15" Cabinet speaker has kicked the bucket and i'm looking for suggestions for suitable replacements. The two heads i'd be running it through are an Ampeg SVT3Pro (~450w) and a Fender Super Bassman Pro All-tube head (300w). I primarily use my 410 neo Fender cab for most gigs, but wanted to have an additional 115 cabinet for adding on to a full stack for larger gigs or as a standalone cabinet for smaller gigs. I'm a total noob when it comes to understanding which speaker might work. I'd like something that has enough headroom but also sounds warm and clean. I've head that the Kappalite 3015 might be a good choice, but my cab isn't ported. Is this not a good idea? Any suggestions welcome. Thanks!