* passive parallel riaa equaliztion * pz analysis does not converge for this circuit, * preequalize with inverse RIAA for flat ac plot to 50khz. v1 vsigin 0 dc 0 ac 1 sin 0 1.414213562V 1kHz x1 vsigin vin 0 invriaa r1 vin vout 6.877358491k r2 vout r2toc1 1k c1 r2toc1 0 318n c2 vout 0 109.0534979n .include ./invriaa2.txt .end .control ac dec 25 10Hz 300kHz echo plot frequency response as driven by inverse equalization setplot ac1 plot vdb(vout) .endc