* inverse riaa signal equalizer with 50khz pole .subckt invriaa vin vout vref r1 vin net1 217.173913k c1 vin net1 14.64264265n r2 net1 net2 17.67514356k c2 net1 net2 4.243247006n r3 net2 ref 1k vcurr ref vref dc 0 hgain vout vref vcurr 235.8490566 .ends invriaa