Hi,
is there any way to get multiple audio interfaces in studio one? I've tried asio4all but that really doesnt work. it hangs S1 on every config change. Are there any other options?
thanks! BTW i'm on 64bit

Yes.. but you need the right type of interfaces to pull this off.. if you are using Studio One you can do this real easy with the Firestudio line of interfaces and mixers.. I use a Firestudio Tube as my main interface at home.. I have all the studio live consoles but I love the 1602.. so it comes and goes into my home system when I need more than 16 inputs from the FST.
I simply connect the 1602 to my PC (i have the drivers already loaded).. the 1602 now shows up in UC under the FST so i see 2 icons.. you need to go into Studio One and set up your I/O for them both to show up in the I/O pull down windows of S1.
I set up both mono and stereo inputs so I have a choice and not have to use 2 mono tracks for a stereo input.. it makes twice the Inputs in the I/O but real easy to select the them in Studio One..
you also need to set up your outputs.. and again I set up both mono and stereo.. I use the FST as the master for studio monitors and headphone sends since it is the stay at home unit.. but if you set em all up in I/O you can select in Studio One what gets sent where and how.. this was amazingly simple.
the Firestudio and studio Live series consoles seem to work well together in this fashion.. USB interfaces and mix and match interfaces and boards are another story.. I'd get the ones that actually work well together or you are asking for a lot of trouble.
In Studio One you can set up Templates.. I have several for using 2 interfaces.. set up your interfaces and I/O structure and set up a studio one session.. save this as a template and then simply select it before you start a session.. I set up several different session type Templates so it is always a simple click to get it going.

2- 24.4.2 consoles, 1- 1642 console, 1- 1602 console, 1- firestudio tube, 1-AudioBox USB, 1- PRM mic/ 1 DBX cal mic, 1- Behringer X32, 1 Behringer X32 Compact, 1-AVID SC48, 1-Midas Venue f32, 4-Midas Venue 240, Mackie and Yamaha analog mixers, 1 mac mini-on the 1642, 1- Open Labs XXL windows XP based mondo workstation, 1- Open Labs Sound SlatePro windows 7 hot-rod PC. Studio One Artist / Pro, ProTools, Ableton, Reaper, Meyer, QSC, Mackie, JBL speakers. Yamaha C7 Grand Piano with MIDI, lots of synths, samplers and modules, Spector NS2 bass, 2- taylor acoustics, Kay Upright Bass, G&L strat,

Ah, so if I read you correctly, the FST drivers will support multiple interfaces and handle it for you, while Studio1 will just see one driver with the inputs from multiple interfaces. UNfortuantely my situation is that I have an M-audio interface, and have just purchased a roland TR8 which gives another 11 outputs. So different drivers. Studio1 wont do that... Asio4all should, but it's not stable. crashes all around...

most likely they are incompatible so to do it you need compatibility.. all Firestudio interfaces are and work perfectly in this fashion with Studio One but the interfaces you listed compete for CPU attention and will lock and freeze or crash..

2- 24.4.2 consoles, 1- 1642 console, 1- 1602 console, 1- firestudio tube, 1-AudioBox USB, 1- PRM mic/ 1 DBX cal mic, 1- Behringer X32, 1 Behringer X32 Compact, 1-AVID SC48, 1-Midas Venue f32, 4-Midas Venue 240, Mackie and Yamaha analog mixers, 1 mac mini-on the 1642, 1- Open Labs XXL windows XP based mondo workstation, 1- Open Labs Sound SlatePro windows 7 hot-rod PC. Studio One Artist / Pro, ProTools, Ableton, Reaper, Meyer, QSC, Mackie, JBL speakers. Yamaha C7 Grand Piano with MIDI, lots of synths, samplers and modules, Spector NS2 bass, 2- taylor acoustics, Kay Upright Bass, G&L strat,

It's not a Studio One problem but a limitation of the ASIO driver protocol.
Don't confuse ASIO with ASIO4ALl, the latter being a wrapper for WDM drivers to make them appear like they are ASIO drivers. As you've already experienced ASIO4All can be very flakey.
Usually for ASIO drivers to support multiple devices a basic requirement is that they all come from the same manufacturer enabling the driver to permit multiple devices. Much of it has to do with synchronising of the sample rate lock in the hardware. HTH

Mike V
Gear.
Win 10 x64, S1v3.02,
Waves Digigrid IOS & IOX
Raven 3.0 MTi2
Presonus Central Station Pro.
ASUS X79 Pro, I7 3930k
RAM 32Gig

Well it's sort of working in asio4all, my m-audio interface and the TR8 are now showing up. But it's wonky and i wont be using it unless I really need it. A pity though that this relatively easy tech problem isnt's solved in Windows and ASIO. Esp. for USB devices since the clock is synced over all devices on a usb buss and sync issues could be easily avoided.

Hi
I am trying to do a similar thing with Studio One on my iMac. I want to track my guitar through a GT-100 effects unit via USB then have the recorded sound come out through my Roland Duo-Capture. I have set up an Aggregate Device as per instructions given to me in a different thread but the output does not come through the Roland interface unless I have it connected to the GT-100. Is there a way of doing this that you know of?
Mick

iMac running Yosemite.
Presonus Studio One 2.

djrevmoon wroteWell it's sort of working in asio4all, my m-audio interface and the TR8 are now showing up. But it's wonky and i wont be using it unless I really need it. A pity though that this relatively easy tech problem isnt's solved in Windows and ASIO. Esp. for USB devices since the clock is synced over all devices on a usb buss and sync issues could be easily avoided.

Can you describe to me how you did this? I have exactly the same situation - a Firestudio + TR8.

I don't understand why you are fixated on USB output for this. What does that give you that just running the stereo 1/4' outputs into your existing interface can't give you? You are not going to have a difference in sound quality.
Why not just run your guitar straight into your interface, record the track dry and use the GT-100 as an outboard effect insert so you can have full re-amping capability? Then when you have the tone you want that sits well in your mix, print it to another track.
That way you have maximum flexibility with minimal effort.
If you absolutely know you don't want to reamp, then just use the 1/4' outputs direct into your interface and record that signal. Less flexibility but also least amount of effort (and thus the least chance for problems.)
I'm not trying to be overly critical.. maybe there is some feature the USB output gives you going into S1 that I am not aware of? But, I am a HUGE fan of the KISS principle.. if it's getting in the way of the creative process, get rid of it or do it another way!