Now the benefits of increased dynamics, more quiet background, better bass control, more gain and a sense of better frequency extension can be had for the Reduction phono preamp. Four Camille Cascode Constant Current Sources (C⁴S) replace the stock plate load resistors, dramatically increasing the load impedance for approximately 60dB better Power Supply Ripple Rejection (PSRR) and the extraction of the full gain available from the tubes (up from about 36dB to about 40dB). The addition of a Zener shunt voltage regulator lowers the power supply impedance yielding a sense of increased extension of both bass and treble.
 
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