QB-9 Twenty Factory Upgrade




This is for existing QB-9 or QB-9 DSD units that need to be sent to our factory and upgraded to the Twenty version.

When entering billing and shipping details, enter your QB-9/QB-9 DSD serial number in the “Order Notes” section.

The generated sales number will act as the RMA number to authorize the return of the QB-9 for the upgrade.

Once we receive your QB-9, the upgrade will take approximately 7-10 days to process, upgrade, and run all necessary testing before returning.

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

Ship Units to:

Ayre Acoustics Inc,
6268-B Monarch Park Place
Niwot CO, 80503

Additional information

Weight 550 oz
Dimensions 16 × 12 × 6 in