Aurender W20 Reference Music Server
Designed to be used with high performance digital-to-analog converters, the Aurender W20 is one of the few Music Players to support external word clocks used in recording studios, and dual-wire mode used by many reference digital-to-analog converters to separate transmission of left and right channels for better fidelity.
With 12TB of (6TBx2) internal hard disk drives and one 240GB solid-state drive cache for playback, the W20 is the perfect solution for even the most extensive high resolution music collections.
Innovative Technology with battery power/dual wire/master clock input
In digital audio, jitter and noise in the audio signal can seriously affect the performance of digital-to-analog converters. The Aurender W20 is the world's first music player to completely eliminate noise from AC power supplies and AC mains through the use of LiFePO4 (LFP) batteries to power audio components. An FPGA-based All Digital Phase Locked Loop system with an Oven-Controlled Crystal Oscillator (OCXO) clock is used to maintain long term jitter to below negligible levels, and specially designed circuitry provides clean, noise-free power to the dedicated USB digital audio output. A solid-state drive cache for playback and extensive shielding using thick aluminum partitions also minimize and eliminate the many types of jitter and noise associated with the use of disk drives for playback.
Full Range of Digital Audio Outputs and Ports for Network Connectivity
Designed to be matched with high performance digital-to-analog converters, the Aurender W20 is equipped with various SPDIF outputs (BNC, AES/EBU, coaxial, optical) and one dedicated USB Audio Class 2.0 output. For network connectivity and file transfers, the W20 comes with one a Gigabyte Ethernet port and two USB 2.0 data ports.
Aurender App Packed with Convenient Features for Full-Function Control
The Aurender Conductor App turns the iPad into a versatile user interface for Aurender Music Server/Players. All settings and functions of the Aurender Server/Music Player can be easily accessed through the Settings menu, and the Aurender App comes with extensive features to make managing, viewing and playing high resolution music collections a breeze.
External Word Clock Support
Word Clocks are used in recording studios to synchronize timing between devices and ensure jitter-free and time-perfect data transmission. It supports both word clock (dCS DACs or similar) or Master Clock.(MSB DACs or similar)
Dual-wire AES/EBU Mode
Dual-wire AES/EBU mode is used by many reference digital-to-analog converters to separate transmission of left and right channels for ultimate fidelity. For example, when Dual AES/EBU mode is used, left and right chanel is transmitted at 96kHz rate to make 192kHz stereo transmission. Since the max frequency is halved, transmission line requirement becomes less strict.
Separate LiFePO4 (LFP) Battery Power Supply for Audio Components
Two banks of LiFePO4 batteries alternately power audio components and recharge. This completely isolates audio components from ground noise and also eliminates jitter incurred in converting AC to DC.
Internal UPS to protect the storage from the unexpected power outage
A third bank of batteries acts as an Un-interruptible Power Supply (UPS) and should any sudden power outages occur, the Aurender W20 will shut down safely.
Oven-Controlled Crystal Oscillator (OCXO) for long term jitter reduction
OCXOs are among the most accurate and stable clocks in use today. OCXOs are orders of magnitude more accurate and stable than commonly used ordinary crystal oscillators usually found in computers. Temperature changes cause crystal oscillations to fluctuate, which can lead to jitter in the digital audio signal. Moreover, ordinary crystals are much less stable and lose accuracy over time. In OCXO clocks, a very stable high grade crystal oscillator is enclosed in a compartment and kept at a constant temperature to prevent jitter from temperature fluctuations.
FPGA-based All Digital Phase-Locked Loop System
An All Digital Phase-Locked Loop system (ADPLL) incorporating Field-Programmable Gate Arrays (FPGA) with OCXO clocks precisely times digital audio data transmissions and minimizes jitter to below negligible levels
