RU-ASX4D

RDL RU-ASX4D - 4x1 Stereo Audio Selector with Gain Trim and Remote Control

RDL RU-ASX4D is a professional 4x1 stereo audio selector designed for AV installations requiring precise source control, remote operation, and high signal fidelity. The unit allows selection of one of four stereo inputs, each with individual gain adjustment and visual level monitoring. It supports both balanced and unbalanced signals.

Using solid-state switching technology, source selection is performed without mechanical components - ensuring completely silent, fast, and reliable operation with no signal degradation, even in demanding professional environments.

Functionality

• Select between four stereo inputs (balanced or unbalanced)
• Individual gain trim for each input - rear-panel screwdriver adjustment
• Dual LED VU meters on front and rear panels for signal monitoring
• Local switching via front-panel buttons or remote control via terminals
• Remote control from single or multiple locations - compatible with RDL controllers
• 25 mA open-collector output for external device control
• DIP switches for remote mode configuration and power-up source recall
• Solid-state switching - noiseless and reliable signal routing

Features

• Input level range: -15 dBV to +25 dBu
• Stereo line-level output - balanced or unbalanced
• VU meters calibrated to +4 dBu for balanced output
• Excellent channel isolation and very low distortion
• Wide flat frequency response and low noise floor
• High common-mode rejection ratio (CMRR)
• 24 V DC power input - via rear-panel terminal block
• Compact enclosure - suitable for rack-mounted systems

RDL RU-ASX4D is a dependable solution for professional audio systems, offering precise source selection, flexible control options, and exceptional audio performance.