Running a pair of Thiel 2.7s with a Bryston 4BSST2.
I've used several different preamps, including two with balanced outputs. Since there's only a short 30" distance between the preamp and the 4B. I couldn't discern any difference between balanced and unbalanced; however, that might not be an ideal setup for checking, as my speakers are 26' away from the 4B, necessitating some long speaker cables.
If I had to separate the preamp from the amp by any appreciable distance, I'd certainly use balanced.
I've used several different preamps, including two with balanced outputs. Since there's only a short 30" distance between the preamp and the 4B. I couldn't discern any difference between balanced and unbalanced; however, that might not be an ideal setup for checking, as my speakers are 26' away from the 4B, necessitating some long speaker cables.
If I had to separate the preamp from the amp by any appreciable distance, I'd certainly use balanced.