Hey there, i'm new here and have limited knowledge on amps. I am currently using a Ashdown five fifteen as my main amp, however it is proving useless at gigs. So i'm looking to get a bigger rig, perhaps a head(maybe the GK backline 600), two 2x10's and a 1x15. Just wondering if I could somehow use my old ashdown as the 1x15 cab. Also any reccomendations on 2x10's to use? Thanks.