This is an early model SANSAMP, identical to the one used by Kurt Cobain of NIRVANA, with no "classic" notation. By using it with the settings shown in the last image, you can perfectly recreate the sound of IN UTERO. There are scratches on the upper left and back, but otherwise, it appears to be in good condition. The original adapter is missing, so an adapter conversion cable will be included. Also, the manual is not included, but you can view it at the following URL: https://www.tech21nyc.com/t21manuals/Classic-OM.pdf https://www.tech21nyc.com/t21manuals/Classic-OM.pdf This item is considered vintage, so please purchase it only if you understand the nature of used musical instruments. tech21 SANSAMP SANSAMP classic SansAmp NIRVANA Kurt cobain Kurt Cobain fender gibson boss guitar guitar amp effector distortion amp simulator