Art SLA 1 100W Studio Linear Power AmpNotes This is a "new old stock" item acquired from a music store that closed down. It has never been used. sales floor condition A Art SLA 1 100W Studio Linear Power Amp in Mint condition! At Evolution Music, we attempt to highlight cosmetic defects (if any) by picturing every angle of every piece of gear so you know exactly what you are getting. We always picture any and all accessories too. What you see is what you will get so please check out the