I have two 90's (I think) Gallien-Krueger bass cabs but I don't have a lot of information about them. 1x15" - model 115T, labeled 8 ohms, made in USA and a serial number. wattage, years built ? 4x10" - no information on model (could be a 410T), 1/4 input on top right corner but no information. Wattage, years built ? I've had them for the last 10 years and played hundreds of shows with them, they are incredible sounding cabs and heavy-duty built ! They aren't very efficient when using my new Orange AD200b mkIII... I've uploaded pictures, hope this helps. Thanks !