Audiophilleo 1 + PurePower

No other USB to S/PDIF interface gives you the same level of performance, features, and uncolored, spacious, transparent sound—not even at twice the price. And now get a Special Edition with 384Khz and DSD128 support.

Our unique design virtually eliminates jitter artifacts—the long standing bane of digital systems—to deliver an absolutely over-the-top listening experience from any Mac, Windows or Linux computers and music server—even iPad and Logitech Squeezebox Touch!
And now you can achieve the highest possible analog-like performance with the PurePower option, regardless of computer source or USB cable. Absolutely no high frequency noise from your PC can make it into your DAC because there is no electrical connection between the two. It has more bang for the buck than expensive USB cables or other external power supplies.
And it's so much more than just an interface. The Audiophilleo1's dynamic, multi-function, full-color display makes setup and day-to-day operation a snap. Every feature, from its advanced digital volume control, to BitPerfect validation of the signal chain, and in-the-field firmware updates, is readily managed on-screen. You'll be up and running in minutes.
There’s even a joystick for navigating the easy-to-read menus, which dim automatically once the music starts to play.
Only the Audiophilleo1 transport-processor has advanced RISC-based signal processing capabilities and a full complement of digital preamplifier controls—for less than one might pay for a USB interface alone. It's a complete solution that delivers exceptional performance and convenience in a single, compact package.

Features galore…

Brilliant, oversized, full-color OLED display
Built-in joystick cursor
On-screen directions and help
Direct connection to any DAC, without a cable
Runs with standard USB drivers on Mac, Windows and Linux computers — even iPads
Noised-shaped, dithered digital volume control
Up to 192 kHz/24 bit playback (free Windows Vista/7 driver update included)
BitPerfect testing*
Calibrated left/right balance and channel swapping controls
Add new features in minutes by downloading firmware updates
Remote control receiver port
Unique JitterSimulator* lets you hear what jitter sounds like
Ramped muting is gentle on the ears, amps and speakers
Polarity reversal, while you listen
Always-on S/PDIF output eliminates clicks between tracks
Dual 12V triggers automatically control amps and other gear
USB-powered for easy installation
Multi-function LED status indicator
Compact and ergonomic: you can take it with you
DSD64 supported via DoP
Special Edition supports 384 Khz SPDIF, and DSD128 via DoP

Leading-edge design

Ultra-low jitter S/PDIF output, 2.6 ps RMS phase jitter, 10 Hz to 100 kHz
Asynchronous USB transfer
Exclusive VirtualCable* optimizes connection to any DAC
Regenerative power supply isolates all critical components from computer power
No-compromise fixed-frequency clocks for minimum jitter
Fully-differential ECL transformer-free output stage
Custom-machined solid aluminum case cuts electrical noise and vibration
Environment-friendly RoHS compliance

There's simply nothing better!

Compare it to the competition—regardless of price—and you’ll see that the Audiophilleo1 is the most advanced USB -S/PDIF processor on the market today. And only Audiophilleo offers a three-year limited Warranty on all its products.

Power matters

Audiophilleo’s PurePower VLN (very low noise) Digital Power Pack is an optional battery based power supply for the Audiophilleo1 and Audiophilleo2 transports and transforms our reference-grade transports to deliver new levels of sonic realism, presence, soundstaging and dynamics. From entry-level gear to high-end systems, audio enthusiasts everywhere will appreciate how PurePower makes the background grit and grunge disappear, imparting and analog-like sound that lets the music carry you away. Just have a look at the reviews - the PurePower makes an impact bigger than any cables or alternative power supplies do.
Much of what you don’t like about “digital” ultimately relates to electromagnetic noise in all its various forms. Computers, appliances, mobile phones, TVs—just about everything in the modern world that runs on electricity—create an abundance of random and patterned noise. This electronic “hash” travels through the air, household and system wiring to wreak havoc on even the best audio electronics. Noise gremlins are everywhere, making life difficult for sensitive clocks, DACs, and analog circuits. The PurePower provides the ultimate in clean power to those ciscuits that matter: the output stage and clocks. It makes Audiophilleo1 and Audiophilleo2 sound quality highly independent of computer source and USB cable used. Don't invest in partial solutions like expensive USB cables or PCI USB cards. The PurePower is THE solution to get the absolute best sound from any computer.
All existing Audiophilleo1 and Audiophilleo2 units can be upgraded with the PurePower option. Note that units have to be sent back to Audiophilleo for the PurePower upgrade because it involves considerable internal changes. Also new units may be ordered with the PurePower option already included. Either way, the Audiophilleo 1 and 2 units are modified with an additional power connector which feeds the SPDIF output stage from the PurePower. This modification requires that this power connector is fed with 3.3V to 5V, so the PurePower will be required for normal operation. In return, absolutely no high frequency noise from your PC can make it into your DAC because there is no electrical connection between the two.

The best features

Switch-free, automatic operation. You never have to fuss with cables or toggle switches to get the cleanest power and best sound.
Optimized for Audiophileo1 and 2. It powers only the sensitive clocks and output stage through an additional power connector, providing the lowest possible noise. The USB ARM processor continues to be powered from USB. Sound quality becomes very independent of PC, media player, and USB cable because no high frequency noise can get into your clocks or DAC.
Automatic recharging when not playing music. It senses when the Audiophilleo1 or Audiophilleo2 are not playing music and starts charging.
Unlimited play time with normal use. Battery lasts for 15 hours of continuous play, after which battery charging and Audiophilleo are powered from USB. When not playing music, battery automatically charges so that it is full for the next listening session.
Total isolation from USB power, gound, and data. When running off battery, relays are used to physically disconnect the PurePower from the noisy USB power source (the PC) so that lowest possible power noise levels are achieved when feeding the Audiophilleo1 and Audiophilleo2 output stages.
No noisy wall wart or switching power supply required - plugs into your computer or an optional USB power source
Audiophilleo1/2 USB can plug directly into computer or feed through the PurePower.
Large dimmable LCD display and joystick with real-time display of power and play time
Firmware updating for enhancements
Custom cabling set. Everything you need is in the box.
User-replaceable lipoly battery pack will give years of service. Replacement pack to be sold separately at reasonable cost. Third party lipoly batteries can also be used.
Compact size
Best price-performance

Unique synergy

Every Audiophilleo USB-S/PDIF transport contains two independent modules:
Module1: ARM RISC processor and USB interface, powered by the computer
Module2: Ultra-low jitter clocks and S/PDIF output stage, powered by the PurePower
Module2 is galvanically isolated from Module1. Ground and power are completely separate so that zero noise creeps from the PC to your DAC. The PurePower physically disconnects itself from the USB bus so that it makes zero contribution to the power noise in Module2 and your DAC. No high frequency noise can bleed into your DAC to conjest your sound. Even the PurePower circuitry enters a zero-noise state for absolutely zero noise pollution. The result is analog-like smooth sound with unbelievable detail, black background, and great sound stage and separation.