Vox AC30 Tonestack Equation

Here is S equation for Vox V30 Tonestack.

Numerator:

(s (c1 r2 + c2 r2 + c3 r2 + c2 r4 + c3 r4 + c2 r3 t) + s^2 (c1 c2 r1 r2 + c2 c3 r1 r2 + c1 c2 r2 r3 + c2 c3 r2 r3 + c1 c2 r1 r4 + c2 c3 r1 r4 + c1 c2 r2 r4 + c1 c3 r2 r4 + c2 c3 r3 r4 + c1 c2 r1 r3 t + c2 c3 r1 r3 t) + s^3 (c1 c2 c3 r1 r2 r4 + c1 c2 c3 r2 r3 r4 + c1 c2 c3 r1 r3 r4 t)

Denominator:

1 + (c1 r1 + c3 r1 + c1 r2 + c2 r2 + c3 r2 + c2 r3 + c2 r4 + c3 r4 + c1 ro + c2 ro + c3 ro) s + (c1 c2 r1 r2 + c2 c3 r1 r2 + c1 c2 r1 r3 + c2 c3 r1 r3 + c1 c2 r2 r3 + c2 c3 r2 r3 + c1 c2 r1 r4 + c1 c3 r1 r4 + c2 c3 r1 r4 + c1 c2 r2 r4 + c1 c3 r2 r4 + c2 c3 r3 r4 + c1 c2 r1 ro + c2 c3 r1 ro + c1 c2 r3 ro + c2 c3 r3 ro + c1 c2 r4 ro + c1 c3 r4 ro) s^2 + (c1 c2 c3 r1 r2 r4 + c1 c2 c3 r1 r3 r4 + c1 c2 c3 r2 r3 r4 + c1 c2 c3 r1 r4 ro + c1 c2 c3 r3 r4 ro) s^3