Source to two Preamps question:

Just wanted to check with all of you and determine if what I'm about to do will wreck my sound or is just plain wrong and lazy.

Situation:

1) I have a Solid State setup (Audio Refinement Multi5 and Pre5) and Tube setup (Cary Integrated SLI-80), I use both a lot, but am getting very tired of changing output pairs on the back of my source each time I want to switch between them.

2) My proposed solution is to put the output pair into the Pre5 and then use the tape monitor loop directly to the Cary whenever I want to use it.

3) Can you stack preamps on top of one another like this? Source->Solid State Pre->Tube Pre via tape loop, or would it sound better how I was doing it originally?

So far it seems the tape loop disables all volume and passes through -- but I just want to make sure that the tape loop takes all the preamp circuitry out of the 'loop' before I make this permanent. I'm looking for the Pre5 to be totally transparent when using the Cary. Is that what the tape loop does?

Thanks,

Jason