right now I'm practicing with a stagg guitar amp 8" speaker but I need upgrade to a new amp that I can use in small places like a bar or a little bigger like an small theater . but my limit is it should be combo and I can't use head and cabinet . I find an ibanez amp .its 300 watt ,15" speaker and it cost around 400$. another amp it's 10" speaker ,300 watt and it cost 350$. I don't know which size is better for me .i play metal and rock but lately,new gigs I play some fusion (not jazz fusion ,I mean classic music with folk singing ) I have a 5string low end bass ,Yamaha bb415 . how many watts is enough for places that doesn't have pi system . and which one do you thing is better ? is there still line 6 cheap amps like around 400$ find ?!