There will always be double the inbuilt latency when using inserts due to the double A/D/A/D/A trip, unfortunately, but it shouldn’t be noticeable if it’s low enough. It would be good to know what the H90’s latency is in samples or milliseconds for each A/D/A process.

I haven’t tried the inserts yet, but if there is noticeable latency as you say, I will also be very disappointed. I hope you get it sorted or some kind of feedback from Eventide.

Will be watching this thread!

Just to double check, in the Insert Routing menu you can set the latency to 0, it hasn’t been set higher by mistake by a previous owner or something?