Overview
The AVN-PX8X4C is a powerful mix engine with 8 virtual mixers, each with 4 mono channel inputs and one mono output. These mixers can be controlled remotely by a technician and presenter using advanced webserver configuration. The mix engine also has 24 analogue inputs and 16 analogue outputs, as well as 32 logical inputs and 10 logical outputs using AoIP. It is equipped with dual hot-swappable AC power supplies, 2 x 1Gb Ethernet ports, and 1 x SFP port. The front panel features status LEDs and an OLED display, as well as 20 configurable GPIO ports.
The AVN-PX8X4C is part of a presenter mixer system that allows presenters to adjust audio levels for their radio or wired IEM systems. It consists of 3 units connected via a Ravenna Audio over IP network. The mix engine accepts 24 analogue mono inputs and outputs 16 analogue mono channels, while also creating and controlling 8 virtual mixers. The built-in webserver allows for easy configuration and routing, and up to 4 MPPRs can be assigned to each virtual mixer. The mix engine has dual hot-swappable AC power supplies and front panel LEDs to indicate power and network status.
Included in box
1x 2U rack mounted Mix Engine Rack (AVN-PX8x4C)
About the Sonifex AVN-PX8X4C Mix Engine
The mix engine houses the hardware where the complex routing, mixing and DSP functions are performed. This resilient 2U rack has dual hotswappable AC power supplies and both 1Gb Ethernet and SFP ports.
AVN-PX8X4C 8 x 4 Channel Mix Engine, 24 Inputs, 16 Outputs, AoIP AES67.
The presenter mixer system allows on-air presenters to adjust the audio levels fed to their radio or wired IEM systems, whilst also allowing Sound Control Room operators to adjust the levels remotely. The system consists of 3 types of unit all connected on a common Ravenna Audio over IP (AoIP) network with added audio sources derived from Ravenna based AoIP mixers or input portals. Setup and control can be provided via webpages and/or 3rd party applications. The system uses mono audio throughout.
The AVN-PX8X4C Mix Engine, as well as using AES67 audio streams, accepts 24 analogue mono input channels on 3 x DB25 connectors and output 16 analogue mono channels on 2 x DB25 connectors. Each mixer unit is able to create and control 8 virtual mixers, each capable of mixing any 4 sources (analogue or AoIP) to a single mixed output that is available locally at an output and via an AoIP stream (to the Presenter Unit and other destinations). The analogue audio line-up level will default to +18dBU = 0dBFS.
A built-in webserver is used for configuration settings, input/output routing and for defining which Presenter and Technician Remote Units are assigned to the particular Mix Engine and Virtual Mixers. Up to 4 MPPRs can be assigned to each Virtual Mixer on a first-come first-served basis. It’s also possible that both MPTRs could also select the same VM so a maximum of 6 devices can control the mix levels of a VM.
The Mix Engine will allow a maximum of 32 audio over IP input streams (each stream can be up to 8 channels). There are 8 virtual mixer outputs available. Each Virtual Mixer has 4 sources and 1 mixed output. There are also 2 more monitor outputs which play out the audio of the VM selection made on each of the 2 connected Technician Remote Units.
The Mix Engine has dual universal AC power supplies which are hot-swappable in the event of failure and have a green LED to indicate within spec operation. The front panel has LED indications and GPOs to warn of power supply failure. There are also front panel LEDs for network and sync/clock failure.
VN-PX8x4C Audio Inputs (Gain setting 0dBFS = +18dBu unless otherwise stated)
Input Impedance >20kΩ balanced
0dBFS line-up +15/+18/+20/+22/+24dBu Balanced*
Frequency Response 20Hz to 20kHz, +0/-0.2dB
THD+N <-110dBFS, -30dBFS, 20Hz to 20kHz, All input gain settings, 20kHz BW
Noise -110dBFS, 20kHz BW, Rs=200Ω
Crosstalk <-100dB
Common Mode Rejection >70dB @ 1kHz, All input gain settings
AVN-PX8x4C Audio Outputs (Gain setting 0dBFS = +18dBu unless otherwise stated)
Output Impedance <50Ω balanced
0dBFS line-up +15/+18/+20/+22/+24dBu Balanced*
Frequency Response 20Hz to 20kHz, +0/-0.5dB
THD+N <-110dBFS, -30dBFS, 20Hz to 20kHz, All input gain settings, 20kHz BW
Noise -110dBFS, 20kHz BW, Rs=200Ω
*+18dB, +22dB and +24dB are handled in hardware, +15dB and +20dB in DSP
Dimensions (Raw) 48cm (W) x 27cm (D) x 8.8cm (H) (1U)
19" (W) x 10.6"(D) x 3.5" (H) (1U)
Weight 5.7kg
8 virtual mixers, each with 4 mono channel inputs to one mono output
Virtual mixers controlled by connected technician and presenter remote controls
Sophisticated configuration via webserver
24 analogue inputs and 16 analogue outputs on D-type connectors
32 logical inputs & 10 logical outputs using AoIP
Dual hot-swappable AC power supplies
2 x 1Gb Ethernet ports & 1 x SFP port
Status LEDs and OLED display
20 x configurable GPIO ports








