Ayre QB-9 DSD USB DAC

Perfectly proportioned, the QB-9 DSD is destined to convert your computer into an uncompromised digital library of your favorite music. A simple USB connection engages the Asynchronous transfer mode ensuring accurately timed music with jitter levels over a hundred times lower than previous USB solutions. Our minimum-phase digital filter and single-pass 16x oversampling technology release layers of musical resolution—uncovering the emotional soul of your music.

-Asynchronous transfer mode for USB input.
-DSD or PCM input over USB.
-Minimum phase digital filter.
-Single-pass 16x oversampling.
-zero-feedback, fully-balanced discrete circuitry.
-Equilock circuitry for active gain devices.
-Ayre Conditioner power-line RFI filter.
-AyreLink communication system.

Frequency Response
DC – 20 kHz (44.1 kHz sample rate)
DC – 22 kHz (48 kHz sample rate)
DC – 40 kHz (88.2 kHz sample rate)
DC – 44 kHz (96 kHz sample rate)
DC – 80 kHz (176.4 kHz sample rate)
DC – 88 kHz (192 kHz sample rate)
DC – 80 kHz (2.8224 MHz sample rate – DoP )

Signal/Noise:110 dB (unweighted)

Output Level:4 volts balanced, 2 volts single-ended

Input:1 USB
         PCM 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz (up to 24 bits), DSD64

Dimensions:8.5″W x 11.5″D x 3″H (21.5cm x 29cm x 7.5cm)

Weight:5 pounds (2.3 kg)

https://www.ayre.com/wp-content/uploads/2018/06/Ayre_QB9DSD_Manual.pdf