For sale: Z.Vex Nano Head, the world’s smallest production all-tube guitar amplifier head — in excellent condition, complete with original power supply and original box. This is the hand-painted version, making it a one-of-a-kind piece: no two Nano Heads look alike. The artwork on this unit is in very good condition, with no significant chips or damage. Specs: • ½ watt all-tube output (drops to ~0.1W clean) • Works with any 8–16 ohm speaker cabinet • Controls: Volume, Brightness switch, Thickness switch (Normal / Thin / Fat) • Internal 230V DC high-voltage supply — genuine tube crunch at low volume • Fits in a guitar case Ideal for: home recording, studio use, low-volume practice through a real cabinet. Sounds enormous through a 4x12. The Nano Head is discontinued and increasingly hard to find, especially in this complete condition. Tubes are original and functioning perfectly. Selling because I’m moving on — not because anything is wrong with it. Ships from Italy. Carefully double-boxed. Open to reasonable offers.