At the heart of the Nakamichi BlackBox Series is the PS 100 Power Supply which is the source of ±10 volts DC for all of the other BlackBox components.
MSRP $128
1979-1993
The PS-100 will power any number of BlackBox units from one to six. Even though there is only one DIN type connector for power connection provided on the PS 100, powering of multiple BiackBox units is easily accomplished by a chain process: each BlackBox unit other than the PS 100 is designed with DC input and DC output jacks, and each unit is supplied with a connecting cable for powering subsequent units. The PS-100 features a fully regulated DC output, providing a steady ±10 volts regardless of fluctuations in AC line power or power supply load.