Sunn Vintage Studio Bass 1x15 Combo AmpNotes Believed to date from the late 60's or early 70's Scratchiness in volume and bass pots Small split in strap handle, as shown in photos. A Sunn Vintage Studio Bass 1x15 Combo Amp in Very Good 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