Alto Professional AltoPatch.B 24-channel 48-point TRS Patchbay

24-channel (48-point) TRS half-normal patchbay in great shape, barely used.  Each channel can be used in one of the four patching modes shown on the top (parallel, half-normal, normal, de-naormalled).  Normalling can be turned around on individual channels by reversing the PC board(s) inside (requires taking the unit apart).  Similar features to the Behringer Ultrapatch Pro, Samson S-Patch Plus, Neutrik NYS.  Solid construction.  Used in a non-smoking environment only.