Technics RS-B555

atel stelete)
4, Linear magne-field Class AA recording amplifier
Current Drive Amp
(V-I Converter)
Voltage Control Amp
Vout ci
As in our previous Class AA amplifier, this new design
consists of voltage control amplifier and a current supply
amplifier and boasts true class A operation throughout. The
voltage control amplifier incorporates equalizer elements in
its feedback loop to provide a voltage output with recording
equalizer characteristics.
The current supply amplifier converts this output voltage into
current, thereby supplying a current proportional to the
Signal voltage to the recording head.
In other words, even if the load impedance varies with
frequency, the current supplied to the head is always
proportional to the voltage control amplifier output voltage.
This ensures that the signal filed generated by the recording
head possesses the same gain and phase as the output signal
from the voltage control amplifier and results in a remarkable
improvement in waveform response.