He said this was the sound he was going for...
Clutch - The Drifter - YouTube
His amp is a 350 watt that ranges from 40hz-10khz. Right now he has a 1x15 amp and a 4x10. He said they're very responsive and good for 'Chili Peppers bass sound", but he's looking for a speaker w/ a little more grit, but not mud (if that makes sense to any of you bass players). He thought about a 2x12, tighter than tens but not as muddy as a 15.
Any thoughts or suggestions? I looked at PE's website and for what they call bass guitar speakers they only have 10's and 15's, no 12's. They do have 12's if you search bass guitar speakers, but the speaker's description doesn't say "bass guitar speaker" like the other speakers did. Thanks for the input BTW!
Edit: After talking to him, guess I was wrong. Sounds like he's interested in just building new