VONYX VXA Series PA Power Amplifier
Professional two-channel PA power amplifier series designed for high-performance audio applications, featuring stereo and bridge modes, robust construction, and comprehensive protection circuitry.
Table of contents
Product Overview
The Vonyx VXA series is a range of professional two-channel PA power amplifiers designed to deliver reliable, high-quality audio performance. These units are suitable for various sound reinforcement applications and offer flexible operation modes including stereo and bridge configurations to suit different speaker setups.
Safety Instructions
Read all instructions carefully before use. Failure to follow these guidelines may void the warranty and cause damage or injury.
- The unit contains high-voltage components; never open the housing.
- Ensure the unit is connected to an earthed 220-240Vac/50Hz mains outlet protected by a 10-16A fuse.
- Keep the unit away from moisture, rain, and heat sources.
- Ensure adequate ventilation; do not cover cooling vents.
- Always switch off and unplug the unit before moving it or performing any maintenance.
- If the unit is damaged, do not connect it to the mains.
Installation and Operation
Before wiring, ensure the amplifier is turned off. Speakers can be connected using NL4 plugs or binding posts. Always match the wire gauge to the distance between the amplifier and speakers (e.g., 1.5mm2 for <10m, 4.0mm2 for 20-30m).
Operation Modes
- Stereo Mode: Provides two independent channels with separate volume controls.
- Bridge Mode: Combines both channels for double power output on a single channel. Connect the signal to the left input and use the left volume control.
Always turn volume controls to the minimum before switching the amplifier on. Monitor the signal and clip indicators; if clip LEDs light up continuously, reduce the volume to prevent permanent equipment damage.
Maintenance and Troubleshooting
The amplifier features a protection mode that activates if it detects potential damage, such as bad ventilation, low impedance (<4 Ohm), defective fans, or short circuits. If the protection indicator lights up, check these factors immediately. Clean the unit only with a dry cloth; do not use chemical cleaners or sprays on switches.
Disposal
This product must not be disposed of in household waste. Please bring it to a local recycling center in accordance with WEEE regulations.