I see these on line going for between $250- $450. This one has not been tested and is being sold as is for parts or repair. It belonged to a bass player friend and I am selling it for the family. I have not used it and know nothing more about it. It is priced accordingly. rack case is not included.
The ART SGX Nightbass Studio Edition is a vintage 1990s rackmount bass preamplifier and digital effects processor designed specifically for bassists. It features a tube preamp, over 400 factory presets with 200 user-programmable memory locations, and a wide array of analog and digital effects like compression, distortion, EQ, reverb, and delay. It can be used for both studio recording and live performance when paired with a power amp and cabinet.