1970ish Acoustic Control Corp model 150 bass rig. Owned by a recording studio but never used (the head not the spreader). Very rare to find in in this shape
@SteveMaves Yes I took a .dd image of NextStep I found online and renamed to .hda. There is a next-specific INI file as well that you need in the SD card along with the .hda drive image.
Booting a new to me NeXT cube computer with an external hard drive. NeXT install OS on a new SD2SCSI drive that will last a long time. Replaced the internal battery