The Helvia DK-HVA00083 digital audio processor is an audio matrix with 8 inputs and 8 outputs for managing and processing signals in multi-zone systems. It features a 400 MHz DSP and a 1.2 GHz dual-core controller running Linux, and supports future expansion of inputs and outputs.

The low-noise preamplifiers have a noise level of up to -100 dB. Each input features Adaptive Feedback Suppression, Automatic Echo Cancellation, Auto Gain Control, Noise Gate, and Limiter, while each output features an 8-band equalizer, HPF/LPF filters, delay of up to 300 ms, and Limiter. It is controlled and programmed using Windows® software.

• Type: Digital audio matrix
• Inputs: 8
• Outputs: 8
• DSP processor: 400 MHz
• Controller: Dual-core, 1.2 GHz, running Linux
• Input processing: Adaptive Feedback Suppression, Automatic Echo Cancellation, Auto Gain Control, Noise Gate, Limiter
• Output processing: 8-band equalizer, HPF/LPF filters, delay of up to 300 ms, Limiter
• Noise level: Up to -100 dB
• Control connections: USB, TCP/IP, RS-485, RS-232
• Wall controllers: Up to 16 via RS-485
• USB ports: 2, one on the front and one on the rear
• Software: For Windows®
• USB functions: Computer control, live recording, and playlist playback
• Recording and playback routing: Via the matrix