Just wanted to post a notice about my new rack extensions, just released a few minutes ago!
It's quite simple high pass and low pass filters, inspired by the Altec 9069/9068 passive filters that King Tubby had in his studio. The high pass was known as the mysterious "big knob" and he often used it on the send/return effects, like sweeping the reverb tail or insert it before the reverb. A great trick is to put it before the reverb on 7.5k, by that you almost remove all signal and then you just lower the cut off to let drums and what not through to the (spring) reverb. Instant dubby vibes!
It's by no mean an accurate emulation (i had no possibility to get my hands on those rare things..) it's rather an approximation from listening to dubs by Tubby and looking at clones. The main thing with them is that they have those specific stepped cut off frequencies so you get the same characteristic stepped sweeps when routing fx thorugh them. I've also added peak control and an transistor drive input circuit so that you can drive the signal for some "analog heat"
And yes, for smooth sweeps there is a CV jack on the back linked to the cutoff frequency. I made three units, the HP1012 high pass, LP1024 LowPass and LPHP 1224 combining both of them in one unit.
They're available in a bundle for a heavily reduced price, so you could pick and chose what is of interest or convenience!
Check them out here: https://ekss.se/vintagefiltersuite
https://www.reasonstudios.com/shop/bund ... lter-suite
cheers!
/Erik
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