8x8 Channel Audio Routing & Monitoring System

The AS-18 Audio Switch is a professional-grade 8-input, 8-output audio routing and monitoring unit designed for use in broadcasting, studios, and audio control systems. It allows manual or automatic channel switching, audio level monitoring, and remote access and control, offering both flexibility and reliability in demanding audio environments.

Key Features

• 8 Audio Inputs / 8 Audio Outputs
  Includes 7 external inputs and 1 input from the Remote Control Board (Raspberry Pi).
  Outputs include 7 direct audio channels and 1 switchable output channel.

• Headphone Monitoring
  Listen to any input channel via the integrated 3.5mm audio jack or remotely via the web interface.

• VU Meter
  Visual monitoring of audio levels per channel.

• Mute Function
  Instantly mute audio channels when needed.

• Auto or Manual Channel Switching
  Choose between automatic signal routing or manual selection via front panel or remote control.

• Remote Control Access

  • Listen to audio streams via browser

  • Control switching from a custom web interface

  • Integrated audio player with remote IP/URL selection

Modular & Expandable Design

• Hot-Swappable Input Boards
  Easily increase or decrease input capacity.
  Each input module includes 3 XLR and 2 BNC connectors.

• Main Unit includes 8 audio output sections.

• Input Board contains 1 input section with expansion support.

Technical Specifications

• Gain (Input to Redundant Output): -0.3 dB

• Input Impedance: >10KΩ

• Output Impedance: 600Ω

• Audio Inputs: 7 × (3 XLR + 2 BNC)

• Audio Outputs: 8 × (3 XLR + 2 BNC) + 1 × 3.5mm headphone jack

• Operating Voltage: 90–250 VAC, 47–63 Hz, single phase

• Operating Temperature: 0°C to +45°C

• Remote Control: Web browser (URL/IP) and integrated player

• Form Factor: 3U – 19” rack mountable

• Dimensions: H: 94 mm, W: 484 mm, D: 290 mm (including connectors)

• Weight: 4.0 kg

Ideal Applications

• Broadcast studios

• Audio control rooms

• Signal monitoring and redundancy systems

• Headend audio routing in transmission centers

AS-18 provides seamless control and monitoring of multiple audio channels in a modular, rack-mountable system — perfect for environments where reliability, remote access, and audio clarity are mission-critical.