Precision phono stage RIAA equalisation (CR not NF); supports both MM and MC cartridges
Two low noise OP amps are used in the phono equaliser amp circuitry. OPamp preferences are accommodated by use of socket mounts allowing easy substitution of alternatives.
Two 12AU7 (ECC82) tubes are used in the line amp stage. Gain is switchable (approx 1x to 3x)
Reduced hum/background noise circuitry includes a low flux leakage R-core transformer, a FET ripple filter for B-power with the tubes powered by the DC power supply.
Sufficient space has been provided on the PCB for substitution of larger coupling capacitors
