they really sounds amazing, but the price are a little too high, I hope there come some special offer
Whirl is a barber phaser fx, then there's other amazing fx's, like Albedo
It's worth adding that Sinevibes also has free Synth and fx engines that can be downloaded and those are indexed in the Korg Nts-1 official github repository.
And the Nts-1 can be fully filled with awesome synth engines and effects without any extra cost.
link to CDM article
https://cdm.link/2020/11/sinevibes-node ... -99-nts-1/
And devs company
https://www.sinevibes.com/korg/