Ayre Acoustics QB-9 USB DAC; D/A Converter

Ayre Acoustics QB-9 USB DAC Highlights

Product: Ayre Acoustics QB-9 USB DAC; D/A Converter

Product SKU: 91135

Serial Number: 18D0206

Input Voltage: 120V

Cosmetic Description: Very good condition with minimal visible cosmetic wear

What is Included: DAC, Power Cable

Functional Notes: Operational condition of this item is excellent, fully tested and no issues found.

Age: Unknown

# of Owners: 1

Tobacco Exposure: No

Service History: None

MSRP: $2500

Other Notes: 

"The Ayre Acoustics QB-9 is a landmark USB-only DAC that set a new standard for digital audio. Introduced between 2009 and 2015, it pioneered asynchronous USB technology, dramatically reducing jitter and delivering natural, highly detailed, and fatigue-free sound. Its strong, controlled bass and open, analog-like midrange make listening effortless and engaging, while later DSD and “Twenty” upgrades enhanced resolution, soundstage, and longevity, keeping it competitive with modern high-end DACs.

Designed exclusively for USB playback, the QB-9 shines in its singular focus, featuring a minimum phase digital filter that preserves musical nuance. Critics and users alike praise its ability to reveal fine details without harshness, offering a liquid, immersive listening experience. Its primary limitation—USB-only input—is outweighed by its sonic excellence, making the QB-9 a classic, enduring choice for anyone seeking a top-tier computer audio source."

Product Specifications

Reviews:  Review 1

Shipping: Cost to ship this item within the contiguous United States is a flat rate of $37- including packaging and insurance. For all other locations including Hawaii, Puerto Rico and Alaska, please request a quote prior to purchase. Items with factory packaging will be double boxed. When factory packaging not available re-usable shipping box with custom injected-foam mold will be used. (for all items over 10 lbs). Note that all items valued over $750 will require a signature upon delivery.