Black Noise Modular Ether

From the manufacturer:

Ether is a 4HP output module, the bridge from your eurorack system to professional recording and live
environments. A compact, effortless, crystal-clear, and reliable connection to the outside world, matching
high-end DI box performances.

Eurorack levels are too high for most audio gear. Ether is calibrated for studio mixers, active speakers, audio interfaces, recorders, FX pedals, and headphones. It provides balanced 6.35 mm TRS line-level outputs and a dedicated 6.35 mm stereo headphones amplifier, with independent volume control.

Staying true to our DNA, we draw from forgotten past to innovate. While many premium solutions rely on rare, expensive transformers, we took inspiration from a vintage French military radio circuit made for maximum signal integrity using stable, time-proven components.

Panel Width
4HP

Module Depth
33mm (skiff friendly)

Power Consumption
+12V : 36mA
-12V : 36mA
+5V : 0mA

Main outputs
Max Level : +10dBu
Impedance : 250Ω

Signal Integrity
TDH + N : 0,03%
SNR : >120dB

Stereo field
phase deviation : <1,6%
Crosstalk : -86dB

Headphones outputs
Max Level : +10dBu
Impedance : 250Ω

Inputs
Nominal Input Level: +7dBu
Max input Level: +14dBu

The core of the original design is a 1972 op-amp that looks modest on paper but performs exceptionally well with precisely tuned resistor and capacitor values. We adapted the circuit for modern, reliable op-amps while
preserving the strengths of the original design, achieving some of the lowest noise and distortion levels in eurorack.