Aune S18 EVO Reference DAC
3rd generation PLL technology
Global clock synchronization architecture
Fully synchronized I²S signal path
High-end Hi-Fi Bluetooth
Dual AK4497 DAC chips, precisely synchronized
Fully unleashing the potential of XMOS
Remote control made of solid aluminum
Aune S18 EVO
Hi-Res Pure DAC
Precision. Synchronized. Perfected.
3rd-Generation Fully Synchronized PLL Technology
The S18 EVO features a third-generation PLL (Phase-Locked Loop) core with full clock synchronization technology that dynamically detects and eliminates deviations between the reference clock and the feedback clock. This reduces clock signal jitter to the femtosecond level and ensures a highly unified time base across all units during high-speed data processing. The result is a stable, pure, and fully synchronized clock foundation for the entire system.
A Distinctive Global Clock Synchronization Architecture
A New USB Sound
Unleashing the Full Potential of XMOS
Most USB DAC circuits on the market follow a conventional design: two crystal oscillators provide clock signals for the XMOS chip. To fully unlock the potential of XMOS in combination with aune’s custom drivers, the S18 EVO uses an ultra-low-jitter PLL to deliver a superior clock signal. This ensures full device synchronization and enables true high-fidelity reproduction.
Fully Synchronized IIS Signal Path
Direct-to-DAC Architecture
AES, optical, and coaxial inputs are reconditioned using digital synchronization technology combined with a low-jitter PLL. All signals are then fed into the DAC via the IIS interface—resulting in higher fidelity, more natural reproduction, and authentic sound across all inputs.
In-House Bluetooth to IIS + PLL Clock Synchronization
Hi-Fi Bluetooth Performance
Conventional Bluetooth signals typically exhibit high jitter, which can lead to audible distortion when sent directly to a DAC. aune uses its proprietary Bluetooth and PLL technology to recondition the digital signal before passing it to the DAC—delivering high-fidelity sound even via Bluetooth.
Dual DAC Chips
Precisely Synchronized
Unlike conventional single-chip or asynchronously clocked DACs, the S18 EVO uses an external PLL as a clock reference for two AK4497 chips. Combined with mirrored circuitry, layout, and components, this ensures precise coordination between left and right channels—recreating the cohesive soundstage of a live concert hall.
Custom Filters
More Choice for Your Sound
Built-in DAC chip filters are often complex and not easily understood. For the S18 EVO, our engineers have developed two dedicated filter modes: one for natural, fatigue-free listening, and one for a smooth, well-structured sound. Easily tailor your listening experience to your preferences.
All-Aluminum Remote Control
Simple & Intuitive
The minimalist front design, combined with the well-crafted RC1 all-aluminum remote, makes operation effortless—for a relaxed and immersive listening experience.
Premium Hi-Fi Components
Everything for Sound Quality
We have carefully selected high-end components from leading brands such as Nikon and Panasonic: electrolytic capacitors, ceramic capacitors, organic film capacitors, communication-grade PCBs, and more. Every choice serves one purpose—exceptional sound quality.
The Beauty of the Arc
And Simplicity
The iconic arc-shaped design. Classic, minimalist, timeless. Experience the harmony of music and aesthetics.
Outstanding Specifications
The Foundation of Great Sound
Line output noise floor: 2.6 μV; THD+N: -116 dB. Outstanding hardware performance provides the foundation for exceptional sound quality.
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