PS Audio AirLens Network Streamer

Whether you stream network music through Roon, Audirvana, JRiver, Tidal Direct, Spotify, your NAS, or any DLNA-compatible server, you will introduce unwanted noise into your sensitive DAC. A USB connection to the computer is by far the noisiest method, followed by a close second via Ethernet or WiFi. What is needed to completely remove this injurious noise is the elimination of any electrical connection between the computer, its network, and your DAC. The PS Audio AirLens has both an input stage and a galvanically isolated reclocking output stage. The two are connected only “through the air.” By using separate power supplies, there are no physical ground or signal connections, ensuring 100% isolation and noise-free delivery of perfect digital audio signals.

Eliminating the noisy USB to-computer connection and instead placing the PS Audio AirLens between your home network via Ethernet or WiFi will change forever the performance of streaming music. Once connected to any DAC, the AirLens interface will bring exceptional transparency, resolution, timbral realism, and wide dynamics to any D to A converter. Noise from any number of sources including your computer, long runs of Ethernet cable, EMI interference through WiFi, the system modem and router, all contribute to increased jitter and a general reduction of fidelity in the system. Connecting your DAC via its coax or I2S inputs completely removes the haze and congestion caused by these noise sources.

Technology

GALVANIC ISOLATION
Galvanic isolation means the complete elimination of any physical electrical connection between input and output. Typically, a common power supply provides ground and power to both inputs and outputs. Once a non-galvanically isolated device is connected to a noise source at its input, its shared ground passes the noise through a common ground to the output stage where the DAC is connected. The challenge with the AirLens was to design two fully isolated stages: input and output, and connect the digital audio signal between the two without any loss. To do this we incorporated a low-noise galvanically isolated DC-to-DC converter to feed power to the AirLens’ output stage. We then deliver the received digital audio data to that clean output stage using only air as the interface. The results are nothing short of amazing. Finally, streaming music with all the noise and jitter-induced haze and congestion gone.