JRDG Company Special – MCC-1 Preamp
Year produced not known
Above: the complete system in a Jeff Rowland publication: MCC-1 preamp, MPS-1 power supply and STA-1 phono stage
Pictured above is the MCC-1 preamp and the MPS-1 power supply (so without the STA-1 phono stage)
Classic Rowland Research 3-piece preamp design consisting of a Line section, Strain gauge phono section and power supply section. Volume control is stepped (21 steps).
According to info found on Audiogon from a previous owner who asked Jeff during a CES audio show, the phono section on this preamp (STA-1) is a Strain Gauge design which will not work with regular MC/MM cartridge.
These were probably Jeff’s first commercial products. Sadly I don’t know anything else about these products. If you have more info, or better images, do please let me know.