Styx Mixer

The Styx is a versatile and configurable 47 x 45 mixer/ utility device with 32 x 32 Dante/AES67 network audio inputs and outputs plus 5 x 5 analog line level circuits, 2 x 2 AES3 circuits, 3(+3) x microphone/line inputs, 2 line up tone inputs, and 3 stereo headphone outputs. 

The front panel features twenty-four assignable rotary encoders and twenty-four assignable illuminated switches, plus a mono assignable PPM and LED graph to indicate encoder positioning.

Styx uses GlenController, a Windows application which can real time adjust any of the 2115 mixer cross point levels, provides many setup options, and allows presets to be stored and recalled.

Multiple redundant power supply sources and redundant network interfaces are included for maximum reliability.

AoIP Inputs & Outputs
The Styx provides thirty-two Dante/AES67 audio inputs and outputs to the network. They are fixed at 48kHz and there is a fully redundant physical connection of two copper network circuits (Ethercon) and two SFP slots normally used for fiber).

Line Level Analog Inputs & Outputs
There are five balanced line level analog inputs and outputs presented on 2 x D25 plugs wired to the AES59 (Tascam) standard.

Microphone Inputs
Three low noise, large dynamic range, high quality microphone inputs are provided on rear panel XLRs. The app is used to set gain and toggle 48V phantom power. The output of the microphone amplifiers are routed in the DSP to individual compressor/ limiter circuits. Both compressed and uncompressed signals are presented as inputs to the mixer. These inputs can also be set to receive a line level circuit.

AES3 Inputs & Outputs
The rear panel 9-way D connector (shared with the GPIO) includes an AES3 input & output circuit. with two audio channels in and out.

Headphone Outputs
For monitoring purposes, three stereo headphone outputs are provided with an amplifier circuit suitable for both low and high impedance headphones.

Line Up Tone
The internal DSP provides two fixed rate oscillators, one at 1kHz and the other 1/5th Octave lower at 629Hz. The outputs of these oscillators are presented as two inputs to the mixer.

Shaft Encoders
The 24 front panel shaft encoders are rotary level controls. When one is rotated, a row of LEDs above the front panel PPM illuminate to indicate the current position (i.e. how far up (or down) the control is currently set). These shaft encoders can also pan the associated circuits by pushing them in while rotating.

The mixer cross point circuits that these controls adjust can be configured in GlenController. One shaft encoder can be set to control many cross points, however individual cross points can only ever be controlled by one shaft encoder.

Switches
There are 24 illuminated push switches on the front panel. These can be set to turn any or multiple mixer cross points on/ off. They can also be set to route outputs to the headphones and meter circuits. The interaction between switches is fully configurable.

GPIO
Four general purpose input/ output circuits are provided. There are four circuits in total and any one can be set to be either an input or an output. These can perform any function a switch can and share full interaction with the switches.