![garritan orchestral garritan orchestral](https://cdn11.bigcommerce.com/s-hvzya2q3vy/images/stencil/1280x1280/products/5347/8916/gargpo51_02__99217.1593207979.jpg)
Your suggestion to d/load available demos of these potential sample libraries is a good one - however, neither Miro, nor GPO5, nor UVI Orch. ST3 and Miro have 16 instrument slots/MIDI channels and a mixer page that offers up to 16 pairs of audio outs that you can configure in the S1 mixer. But ST3 CS would be a good way for you to judge compatibility of the software workflow, and work through the setup of a multi-out instrument plug-in in Studio One,
Garritan orchestral skin#
Miroslav Philharmonik 2 uses the SampleTank 3 engine, but with a different skin and sample set. I don't see any trials on the IKM website, but they do offer a free version of SampleTank 3 CS, with a free 30 instrument factory library. So in general, I have not had any issues with using VST instruments in Studio One Pro. I don't have Garritan, but I do have SampleTanK 3 and Miroslav Philharmonik 2 CE. So I doubt you will run into any serious technical issues trying to use anything you mentioned with Studio One, but rather documentation/workflow things may become showstoppers for you personally.
![garritan orchestral garritan orchestral](https://static.bhphoto.com/images/images500x500/garritan_gpo4dco_personal_orchestra_1381746211_1009144.jpg)
That is the only way to know for certain what will meet your expectations, without making expensive decisions based on opinions from other users.
![garritan orchestral garritan orchestral](https://i.ebayimg.com/images/g/IfEAAOSwsTVasdPF/s-l300.jpg)
Since you would be new to using VST instruments to Studio One, I would recommend getting the VST add-on, or upgrading to Pro first, then download every trial version available of every plugin you are interested in.