Hi, Next week I will be buying Roland Cube15x + Digitech RP90 + a electric guitar between 5-11k (Yes even Java (Black) is in my list if I am satisfied after trials, I can change pickguard and maybe keys to make it look good. Can even go for GRG170dx or Washburn x11 which looks fantastic. I had few queries as under : Amp : Basically I play hindi lead/chords in small music groups, small shows etc..Will grow gradually, thats for sure. Now is this amp-Roland 15x good as a monitor on stage (considering I will always be playing hindi). Tone : What exactly do we look for in a guitar tone? Is is its sustain of loudness or just good on ears in clean channel. If I go in for cheap guitars, say Java, will changing strings & a ok processor like RP90(Post Tweakings) can make them sound better? And final query, Do all guitars hum/distort when guitar (vol/tones) & amp volume are full in clean channel? I currently use friends local one-piece guitar with no brand visible and a 1970's inbuilt phaser amp with bass/treb settings 40W. Thanks.