Sounds like plastic to me...too much treble. Needs more "thump". Typical
Shure SM 57 frequencies, too.
Maybe move the mic away from the cone, more to the side of the speaker. That always helps.
Or try something completely different:
I recently bought two ribbon mikes from Thomann (t.bone
RB-500) and they sound so much softer and faaaaat. They cost only 111 Euros. A well known german producer recommended them, so don't shy away from buying chinese made ribbon mikes. Sure, the Royer 121 we used for our record sounded better, but 111 Euros? Maybe there are cheap ribbon mikes in the U.S., too. These ribbons seem to be THE solution for taming aggressive speakers and turning them into a smooth sounding, fat, er..., thing.
I was really surprised- totally different from what our ears are used to.
Another problem might be the mix: guitars way too loud. If they sit better in the mnix, the bass guitar could compensate for too much treble.