What is B-Stock? Simple: a piece of gear that was returned, usually because it was a demo, sometimes because a switch or an op-amp needed repair. All of our B-Stock is meticulously brought up to spec and thoroughly tested. Cosmetically, all units are in 'very good' to 'outstanding' condition. All B-Stock is fully warrantied and is backed by our legendary support & service. B-Stock inventory comes and goes quickly; if a 'Buy' button is enabled, we currently have stock!