The best value high end USB DAC of all time just got a lot better! The QB-9 Twenty update is a significant improvement to our most popular product. The Twenty upgrade for this USB DAC is more than just the new ESS chip and improved clock. This upgrade includes a vast amount of improvement taken directly from our top of the line R series. The Diamond output circuit improves musicality and bass response. Our new JFET differential stage lowers the noise floor and the AyreLock power supply regulation improves rendering of fine musical detail.
Here is what QB-9 Twenty owners are saying about the upgrade.
OMG is this update audio candy!! I’ve never done an upgrade that was this satisfying. THANK YOU so much for making this possible! –Bob L. (Chanhassen, MN)
I received my unit and just gave it a several hour workout. Sounds fabulous! I love all the nuance and details I didn’t hear before. Don’t know how you did it, but some of the best money I ever spent. Thank you. –David T. (Vienna, VA)
The Twenty update offers a couple of new features over the previous DSD version. Our Custom Ayre Asynchronous USB technology unlocks PCM playback up to 384 kH and Native DSD capability up to DSD256 (4x). It even decodes HDCD!
It doesn’t matter how old your QB-9 is. The Twenty upgrade is available to any version of this fabulous USB DAC. The upgrade is a complete board replacement which means that virtually everything inside your QB-9 is new. The Twenty upgrade comes complete with a new 2 year warranty.