I've been playing with IK's T-RackS 3 Deluxe (which is on a great price-offer at the moment). I had T-RackS many years ago and loved it but never actually used it on any finished piece of work. I tried Izotope's Ozone with the exact same result and eventually got-rid of both as part of the Great Plugin Purge described elsewhere.
Now to burn to an audio CD I need those files to be reduced from 32 bit floating point arithmetic to 16 bits, and that means that they need to be dithered. No problem, my Slate FG-X has a "Dither" button and I have a couple of Apogee and POW-R options that I can use. I wasn’t sure if T-RackS includes dither and in any case it’s always worth auditioning a few different curves to check what sounds best on any given track, so I opened the IK manual to check. The standalone version has an option to dither but I can't find anywhere that tells me that the plugin either does or doesn't. A quick Google and it starts to become a little confusing. Several posts, possibly with the same ground-zero, appear to suggest that the plugin does automatically dither to 16 bits – no option, it just does it. Now this would be a disaster for me (and I’d suggest a generally appalling coding decision) as it would render the plugins unusable other than as last-in-chain-on-the-master-buss! I want to be able to use those modules for mixing too and I'm certainly not going to dither to 16 bits more than once! What to do?
Long story short, a quick check with SSL’s freeware X-ISM and SCHWA’s Bitter shows that T-RackS is neither truncating nor dithering it’s output to 16 bits so a) don;t worry about it and b) do use a dither plugin after it if you are producing a CD.
(If there’s a “Dither” button that I’ve not found just drop me a quiet email and don’t tell anyone else please!)