QB-9 Twenty USB DAC *New Old Stock* Limited Batch.




The QB-9 Twenty has held its place in Ayre’s history as one of our most popular products ever. The hyper-focused functionality of our USB input only DAC design allowed us to scale up in parts quality everywhere we could; putting this little converter closer to our flagship digital product the QX-5 Twenty than any other product in our lineup.

We have a small batch of “New Old Stock” QB-9 DSD’s that have been upgraded to the Twenty version. These were new in box QB-9 DSD units that never sold, and were returned to swap out the DSD board for the Twenty version to offer through our web shop. They are as close to a brand new QB-9 Twenty as we are going to get; for now!

These units are being offered with our full Five Year factory warranty.

Secure one for yourself today before they are gone; again!

Domestic Orders will ship in 2-3 business days.

Here is what has been improved with the Twenty update:

  • Our Diamond output circuit improves musicality and bass response.
  • A new JFET differential stage lowers the noise floor.
  • AyreLock power supply regulation for better rendering of fine musical detail.
  • New AC noise filtering for improved resolution.
  • Custom Ayre Asynchronous USB technology further reducing electrical noise in the system.
  • New ESS DAC chip (ES9038Q2M) for improved signal to noise ratio and spacial detail.
  • Six layer board design for optimal circuit isolation.
  • Proprietary reclocking to eliminate USB domain jitter.
  • PCM play back up to 384 kHz
  • Native DSD capability up to DSD256 (4x)
  • HDCD decoding
  • Dimensions
    8.5″W x 11.5″D x 3″H (21.5cm x 29cm x 7.5cm)

    5 pounds (2.3 kg)

Additional information

Weight 500 oz
Dimensions 20 × 20 × 20 in