200bpm

John
If I am understanding this and I'm really not sure I am try out putting the tracks to a buss that has the fader pulled down.  You can then have the send post fader on the tracks and control the send output with them. 

The problem with this (I think) is that the level sent to the VST amp will have less gain and will change the tonality.
 
Do you know what an insert is?  Imagine the external insert plug in, but one that works with a VST.  That is what I want!

Yes I do. That in Sonar is what the FX bin and Pro Channel are for, inserts. I was thinking about the sends.  If that is all you want use the tracks out to goto a buss with Amplitude in its FX bin, it is an insert. You can control the gain with the gain at the top of the Buss. As I said I was not sure what you were trying to do. I may have been unclear too. I was zeroing in on the sends you were talking about. By using the term aux buss I was thinking send. That is the usual meaning in Sonar. Although there really is no such thing as an aux buss in Sonar we can make them by how we use them. A buss is a buss in Sonar that can take a direct input or can be sent a tap off the track with a send. 
 
I have used hardware mixers with inserts too as well as direct outs and aux ins AKA returns. 
 
Karyn has a very good solution.  Probably the one I would have suggested if I have had a better idea what you wanted. 

From what I understand, what he really wants isn't a SONAR feature but for AmpliTube to handle three separate audio streams under the same set of controls, each with its own output level control. AmpliTube can't do it. I think Guitar Rig can accept stereo signals, so you could process the L+R as separate streams subject to the same controls...but I'd have to try to verify.
 

 

Do you know what an insert is?  .....



LOL, apparently you don't know John well?

Anderton
From what I understand, what he really wants isn't a SONAR feature but for AmpliTube to handle three separate audio streams under the same set of controls, each with its own output level control. AmpliTube can't do it. I think Guitar Rig can accept stereo signals, so you could process the L+R as separate streams subject to the same controls...but I'd have to try to verify.
 

Thanks Graig I think I understand what the OP wants now. Really, I think, he is looking for an insert for an inserted FX. That, as far as I know, is not possible.
 
Randy thank you for giving me a laugh. It was timely. 

I have come up with a hack using the External Insert and RME UFX loopback to put a single VST on any number of input tracks, retaining use of the channel faders (as opposed to routing them all to a stereo bus.)
 
 

You don't lose use of the track faders when you out put to a buss. 

200bpm
I have come up with a hack using the External Insert and RME UFX loopback to put a single VST on any number of input tracks, retaining use of the channel faders (as opposed to routing them all to a stereo bus.)

You've confused me now...
 
What precisely is the problem you're trying to solve?

John
You don't lose use of the track faders when you out put to a buss. 

... thinking. .. When you send to a bus, the original track fader controls the level of the DI, which you don't want to hear.  If it was send to a parallel FX then yes, that would work. I use that technique with my miked tracks.
 
Because this is a VSTi the track fader is useless.  If the send is post fader, then it only controls the level to the VSTi which influences the input gain, which is not the desired affect.

Karyn

200bpm
I have come up with a hack using the External Insert and RME UFX loopback to put a single VST on any number of input tracks, retaining use of the channel faders (as opposed to routing them all to a stereo bus.)

You've confused me now...
 
What precisely is the problem you're trying to solve?

I've got a really cool and sophisticated reamp setup with multiple mics, multiple busses, multiple amps.
 
Impressed with what Sonar is letting me do, just needs a few workarounds.
 
Blowing minds across the internet. 

Karyn
What precisely is the problem you're trying to solve?

 
Just when I think I know, I realize I have no idea what he wants to do. Obviously he's not getting three separate audio streams through a single instance of AmpliTube 3 so I guess if he's solved the problem, that's not what he wanted after all.