How big gigs can this little combo manage? We always have PA support but we have 3 guitarists, a keyboard player and a drummer. We play Bruce Springsteen and Wilco inspired music. Will this combo be enough for a 4-string alone? Also, what is your thought about uing a HiFi combo with vintage sounding basses? My best sound was with vintage Fenders through Glockenklang and EBS rigs. I also have a Tubeworks Blue Tube pedal to ad some grit if I need it.