Designed from the ground up for network audio
Typical IT network switches/routers are designed with the
sole purpose of taking data from A to B with a noise floor and precision that
is "enough" for the rate of transmission. This is fine for data
networks but when sensitive components such as DACs and Pre-Amplifiers are
involved, it will have an audible impact on sound quality.
The PhoenixNET is the realization of Innuos' philosophy
of simplicity and signal purity applied to the network switch. Having started
with improvements to the Ethernet ports' clock on our flagship Statement,
Innuos has now taken the concept to the next level with a completely new
network switch design that focuses exclusively on audio use.
Design is focused on 4 areas: Noise, Clock, Power and
1 - Minimise Network Switch Noise
- Simpler 100mbps network switch chip results in lower
operating noise floor compared to Gigabit
- Network switch chip with no internal switching
regulators. All three independent voltages supplied by internal Statement-grade
linear power supply with independent ultra-low noise regulation.
- Massive individual Network Isolation Transformers to
further isolate from noise coming from router or connected devices
- Just the right amount of Individually shielded, high
quality ethernet ports soldered directly to the board with no ethernet activity
lights as blinking LEDs introduce considerable electrical noise.
- EMI absorption at the right places so that interference
produced can be captured before influencing other components.
2 - Increase Clocking Precision and Stability
Using the same 3ppb 25MHz OCXO oscillator as used in the
Statement, individually powered by its own linear power supply and connected
directly to the network switch chip, avoiding precision losses from using
external master clocks.
3 - Provide Pristine Power to the Components
Two independent Statement-grade linear power supplies
with Mundorf Caps to power individually the OCXO clock and the mainboard,
keeping the power path short with less opportunity for EMI contamination.
4 - Minimise Vibration on Components
Vibration was managed at three levels: Anti-Vibration
feet tuned to the resonant frequency of the chassis, top cover treatment to
convert vibration captured from sound waves into small amounts of heat and
sturdy RJ45 ports with silicone connection to the chassis.