"Rob, I can use mine in Win7 64, but I have to remember to save often and restart the computer to clean out the memory if I've been tracking or even using audio for 20 minutes or so."

Yeah i hear ya on that one bud, but the question is why put up with the aggravation. My Tascam did have pretty clean sound, but i was shocked how much better the Presonus sounds, and how far superior it is in both stability and also the driver software is not only flexible, but actually allow you to enhance the experience.

I use it as a processor of sorts, using the fat channel setting on both vocals and some instruments.

Being able to right in the driver software add reverb, delay, compression, noise gate, filter, and such is huge.

In the two months i have had the unit it has drop out and needed a reboot only once, and it was my fault i turned it off briefly to re route some cabling. I sometimes lost connection with my Tascam on a regular basis if i ran it long, or pushed it hard. I had actually went back to my old M-Audio 2496 card for a while, then on a whim bought the Presonus. WOW what a difference it makes.

HP Win 11 12 gig ram, Mac mini Sonoma with 16 gig of ram, BiaB 2025, Realband, Reaper 7, Harrison Mixbus 9 32c , Melodyne 5 editor, Presonus Audiobox 1818VSL, Presonus control app.