VONYX VXA-1200 Two Channel 600W PA Power Amplifier Instruction Manual

: June 3, 2024
: VONYX

Table of Contents

VONYX VXA-1200 Two Channel 600W PA Power Amplifier
Instruction
FRONT PANEL
REAR PANEL
INSTALLATION
Setup operation mode
- Stereo operation
- Bridge operation
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

VONYX VXA-1200 Two Channel 600W PA Power Amplifier

Instruction

Congratulations to the purchase of this Vonyx product. Please read this manual thoroughly prior to using the unit in order to benefit fully from all features.
Read the manual prior to using the unit. Follow the instructions in order not to invalidate the warranty. Take all precautions to avoid fire and/or electrical shock. Repairs must only be carried out by a qualified technician in order to avoid electrical shock. Keep the manual for future reference.

Prior to using the unit, please ask for advice from a specialist. When the unit is switched on for the first time, some smell may occur. This is normal and will disappear after a while.
The unit contains voltage-carrying parts. Therefore do NOT open the housing.
Do not place metal objects or pour liquids into the unit This may cause electrical shock and malfunction.
Do not place the unit near heat sources such as radiators, etc. Do not place the unit on a vibrating surface. Do not cover the ventilation holes.
The unit is not suitable for continuous use.
Be careful with the mains lead and do not damage it. A faulty or damaged mains lead can cause electrical shock and malfunction.
When unplugging the unit from a mains outlet, always pull the plug, never the lead.
Do not plug or unplug the unit with wet hands.
If the plug and/or the mains lead are damaged, they need to be replaced by a qualified technician.
If the unit is damaged to such an extent that internal parts are visible, do NOT plug the unit into a mains outlet, and DO NOT switch the unit on. Contact your dealer. Do NOT connect the unit to a rheostat or dimmer.
To avoid fire and shock hazards, do not expose the unit to rain and moisture.
All repairs should be carried out by a qualified technician only.
Connect the unit to an earthed mains outlet (220-240Vac/50Hz) protected by a 10-16A fuse.
During a thunderstorm or if the unit will not be used for a longer period of time, unplug it from the mains. The rule is: Unplug it from the mains when not in use.
If the unit has not been used for a longer period of time, condensation may occur. Let the unit reach room temperature before you switch it on. Never use the unit in humid rooms or outdoors.
To prevent accidents in companies, you must follow the application guidelines and follow instructions.
Do not repeatedly switch the fixture on and off. This shortens the lifetime.
Keep the unit out of the reach of children. Do not leave the unit unattended.
Do not use cleaning sprays to clean switches. The residues of these sprays cause deposits of dust and grease. In case of malfunction, always seek advice from a specialist.
Do not force the controls.
If this unit is with a speaker inside it can cause a magnetic field. Keep this unit at least 60cm away from the computer or TV.
If this unit is with a built-in lead-acid rechargeable battery. Please recharge the battery every 3 months if you are not going to use the unit for a long period of time. Or the battery may be damaged.
If the battery is damaged please replace it with a battery of the same specifications. And dispose of the damaged battery environment-friendly.
If the unit has fallen, always have it checked by a qualified technician before you switch the unit on again.
Do not use chemicals to clean the unit. They damage the varnish. Only clean the unit with a dry cloth.
Keep away from electronic equipment that may cause interference.
Only use original spares for repairs, otherwise serious damage and/or dangerous radiation may occur.
Switch the unit off prior to unplugging it from the mains and/or other equipment. Unplug all leads and cables prior to moving the unit.
Make sure that the main lead cannot be damaged when people walk on it. Check the mains lead before every use for damages and faults!
The mains voltage is 220-240Vac/50Hz. Check if the power outlet match. If you travel, make sure that the mains voltage of the country is suitable for this unit.
Keep the original packing material so that you can transport the unit in safe conditions.

This mark attracts the attention of the user to high voltages that are present inside the housing and that are of sufficient magnitude to cause a shock hazard.
This mark attracts the attention of the user to important instructions that are contained in the manual and that he should read and adhere to.

The unit has been certified CE. It is prohibited to make any changes to the unit. They would invalidate the CE certificate and their guarantee!d
NOTE:
To make sure that the unit will function normally, it must be used in rooms with a temperature between 5°C/41°F and 35°C/95°F.

Electric products must not be put into household waste. Please bring them to a recycling center. Ask your local authorities or your dealer about the way to proceed. The specifications are typical. The actual values can slightly change from one unit to the other. Specifications can be changed without prior notice.

Do not attempt to make any repairs yourself. This would invalidate your warranty. Do not make any changes to the unit. This would also invalidate your warranty. The warranty is not applicable in case of accidents or damages caused by inappropriate use or disrespect of the warnings contained in this manual. Vonyx cannot be held responsible for personal injuries caused by the disrespect of the safety recommendations and warnings. This is also applicable to all damages in whatever form.

FRONT PANEL

On/Off Switch.
For switching the amplifier on and off. Always adjust the volume down to its minimum before switching this amplifier on.
Cooling Vents.
Front to rear forced airflow.
Volume Controls.
These controls adjust the volume level of both channels. Turn slightly to the left when the clip indicators (4) light up.
Signal indicators.
Three orange LEDs indicate the amplifier’s output signal levels.
Clip Indication.
These LEDs will light up when one or both channels are on max power. It can occur that these LEDs will be lit up now and then, but this is not a problem. But if it lights up continually you need to adjust the volume down, otherwise permanent damage to equipment might occur
Protect Indication.
When at any given point, something damaging might occur to your amplifier, it will switch in protect mode. The amplifier will disconnect the point where the damage is about to occur and switch on the protection lead to indicate to you that something is wrong. The reasons might be Bad ventilation,
A low impedance (< 4 Ohm), Defect fan(s), and A short circuit in cables.
Bridge Mode Indication.
Power Indication.
This clear blue indicator will light when the amplifier is turned on.

REAR PANEL

6.3mm Jack inputs.
Two 6.3mm jack female input connectors for connecting a signal source (mixer etc.).
RCA inputs.
Two RCA input connectors for connecting a signal source (mixer etc.).
Mode Switch.
The amplifier can use 2 different modes: stereo & bridge.
Choose one of these functions:
Stereo mode: Standard left/right stereo mode.
Bridge mode: This mode combines both amps on one channel which results in double power on this channel. Connects the signal to the left input channel and the output level can now be adjusted with the left volume control.
Ground Lift Switch.
Allows circuit and chassis grounds to be separated in case of problems with earth loops (hum)..
6.3mm Jack Outputs.
Maximum load in stereo mode 4 Ohm per channel.
Speaker Outputs NL4.
Maximum load in stereo mode 4 Ohm per channel.
Pin +1 & +2 = + output,
Pin -1 & -2 = – output
Binding Post Output Jacks.
Maximum load in stereo mode 4 Ohm per channel. Maximum load in bridge mode 8 Ohm.
Mains Power Connector
Fuse
This main fuse secures the amplifier and wires against defects. Replace this only with a fuse of the same type and value.

INSTALLATION

Connecting Output
Make sure the amplifier is turned off before you wire the system. Speakers can be connected using speaker NL4 plugs or bare wire for your binding post-output connectors. Using the guidelines below select the appropriate size of wire based on the distance between the amplifier and speaker.

Distance Wire Size
<10m 1.5mm2

10m <20m 2.5mm2
20m <30m 4.0mm2

Setup operation mode

Amplifier can used in 2 modes:

Stereo operation

Set the mode selector (3) to the ‘stereo’ position. In this mode the amplifier have two in depended channels with their own inputs and volume controls.

Bridge operation

Set the mode selector (3) to the ‘bridged’ position.
This mode combines both amps on one channel which results in double power on this channel. Connects the signal to the A input channel and the output level can now be adjusted with the A volume control. Connect the speaker across the positive (+) output terminals. Do not use the negative (-) terminals when the amplifier is being operated in bridged mode.

NOTE:
Never connect a hot (+) output to ground or (-) output and never connect the hot (+) to other hot outputs!
Connect to mains power
Before plugging the unit in always make sure that the power supply matches the product specification voltage. First connect the IEC end of the cord set to the IEC connector on the amplifier then plug the other end of the cord set to the AC mains.
Please read the instructions below for reliable and problem-free use: