Tube type preamplifier with reliable tube C3g. High ability to eliminate common mode noise due to noise processing technology based on power supply development. Provides a noise reduction effect.
Equipped with high reliability tube C3g
It is equipped with the ultra-reliable C3g, developed by Deutsche Telekom for telephone repeaters. The thin grid lines and large distance between electrodes enable high linearity amplification. The C3g is soldered directly onto the board to reduce noise at the contact point.
Proprietary input/output transformers
Proprietary transformers are used for the input and output. The transformer is an important part that influences the performance of distortion, S/N ratio and input/output impedance. Therefore, the core material, wire material, winding thickness, and winding ratio are meticulously designed and manufactured.
Independent power supply for the left and right
Independent power supply to left and right channels and control circuits. It does not gain S/N in an amplifier circuit. The C3PR gains S/N as a collection of inherent characteristics. So it’s an audibly quiet preamplifier.
Resistance Switching Ladder Attenuator
In a variable resistor that slides on a resistor, noise is generated by a point-contact diode, which can be a source of distortion. This unit is a crossbar twin structure. A gold and platinum contact relay switches the resistance and attenuates from 0dB to -60dB.