Selling my near mint Calypso line stage. I cannot find any cosmetic flaws at all. This was purchased from the Analog Shop in 2010 and I am the second owner, using it lightly on weekends. NOS tubes (2-RCA 12AX7, 2-Amperex 6DJ8) installed in 3/10, invoice included. The tube upgrade is a significant one and takes the performance up several notches. IMO, the Calypso is a bang-for-buck champ. Many reviews of this still current product are available online. If a review doesn't specify NOS tubes the reviewer hasn't heard the unit nearly at its best. I have only found one pre I like better and it costs 5X as much.