<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><div style="font-size: 14px;" class=""></div><div style="font-size: 14px;" class=""><br class=""></div><div style="font-size: 14px;" class="">I am using the ALFA AS2164.</div><div style="font-size: 14px;" class=""><br class=""></div><div style="font-size: 14px;" class="">From there I use the other 2 2164 stages to have a voltage-controlled mix of HP and LP. </div><div style="font-size: 14px;" class="">And from there I use the AS3360 VCA, one for a VCA and one for voltage-control of the filter resonance.</div><div style="font-size: 14px;" class="">Again, the VCA circuit is close to the reference implementation, with a quad op amp handling buffering. </div><div style="font-size: 14px;" class=""><br class=""></div><div style="font-size: 14px;" class=""></div></body></html>