1965-68 Kalamazoo (Gibson) Bass 30 30 watt tub bass amp 210 combo. Everything seems to work dandy, though I personally have not had this serviced and have only used it for short time periods. Regardless vintage American tube bass amp for CHEAP! Plus it’s got a pretty cool old school vibe, and as with my National model 70 and fender bassman amps, guitars sound just dandy through this too. First come first served come get it.