I am the original owner of this Line 6 G50. It works as it should, my only suggestion is between gigs remove the batteries as the design of this unit should be improved. If you leave the batteries in for an extended period the spring contacts in side that engage the batteries become to loose and you may get intermittent connection. I figured this out as the batteries would be loose inside when this happens. I opened the unit and opened the spring contacts and never had that problem again. I am selling this because I dumped $500 into their new G70 system. Also comes with a brand new Nuetrix custom assembly. No power supply as I used this with a Pedal Power. I will sell shipped for $200.00 in the cont. USA.