Самая что ни на есть оригинальная Nagra. Модель PLP.
KEY FEATURES
UNCOMPROMISED POWER SUPPLY
In any pre-amplifier, the power supply is a sensitive and significant component. This is especially true when dealing with phono levels. That’s why the PL-P power supply uses a set of rechargeable “D” cell batteries, operating through an external current charging AC supply. This design eliminates all disruptive effects of AC powering from wall outlets and may solve persistent hum problems. The internal power supply regulation circuitry of the PL-P uses proprietary, dual DC-to-DC converters to eliminate power supply ripples and assures a clean power source for all active electronic stages and components.