Despite my gigging for 30+ years I know little or nothing about all the new amps out there. I've been too busy playing and singing for all these years and have never been a tech junkie when it comes to amps. I'm in the market for something lighter, my TNT 115 is a beast for a 54 year old to lug around any more. Any ideas on new amps, light weight? I'm a blues player who has always preferred 15 inch speakers. Can't afford anything too expensive.