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