The VBS1 can power your Bel Canto DAC 1.5, DAC 3 or DAC 3.5, or the Pre3VB Preamp. It provides a significant improvement in performance to any of these Bel Canto units. I am the original owner of this VBS1. It was recently purchased from an authorized dealer, being just a few weeks old and in as-new condition. I have decided to downsize, so take advantage of this virtually new unit at a very good price. Please contact me at email@example.com with any questions. Buyer responsible for shipping and any PP fee.