1. Introduction
Thank you for purchasing the Vonyx SPJ-1200A 600W Active Speaker. This manual provides essential information for the safe and efficient operation of your speaker. Please read it thoroughly before use and retain it for future reference.
The Vonyx SPJ-1200A is a self-amplified speaker constructed from durable ABS, offering a maximum power of 600W and RMS power of 300W. It features a frequency response of 50 Hz - 18 kHz and a maximum SPL of 122 dB. The 12-inch woofer ensures powerful and clear audio reproduction. Its versatile design makes it suitable for various applications, including DJ sets, presentations, and vocal performances.
2. Safety Instructions
To ensure safe operation, please observe the following safety precautions:
- Power Supply: Connect the unit only to a grounded mains outlet with the correct voltage (230V). Ensure the power cord is not damaged or pinched.
- Moisture: Do not expose the unit to rain or moisture to prevent electric shock. Do not place objects filled with liquids, such as vases, on the unit.
- Ventilation: Ensure adequate ventilation. Do not cover ventilation openings.
- Heat: Avoid placing the unit near heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
- Servicing: Do not attempt to repair the unit yourself. Refer all servicing to qualified service personnel.
- Cleaning: Clean the unit only with a dry cloth.
- Placement: Ensure the speaker is placed on a stable surface or securely mounted on a tripod. Avoid placing it in a position where it could fall and cause injury or damage.
3. Product Overview
The Vonyx SPJ-1200A is an active speaker designed for ease of use and powerful sound. It features an integrated amplifier, multiple input options, and robust construction.

Figure 1: Front view of the Vonyx SPJ-1200A active speaker, showing the protective grille and Vonyx logo.

Figure 2: Rear control panel of the Vonyx SPJ-1200A, detailing input/output connections and equalization controls.
Key Features:
- Powerful Output: 600W maximum power, suitable for various events and performances.
- Integrated Amplifier: Active speaker design with a built-in amplifier for direct plug-and-play operation.
- Versatile Inputs: RCA and XLR line inputs for connecting audio sources (computers, tablets, MP3 players) and XLR or 6.3mm jack for microphones.
- Sound Customization: Independent bass and treble controls, along with separate volume controls for audio source and microphone.
- Flexible Placement: Can be placed on the floor, mounted on a tripod using the integrated TopHat, or positioned horizontally as a stage monitor.
4. Setup
Follow these steps to set up your Vonyx SPJ-1200A active speaker:
- Unpacking: Carefully remove the speaker from its packaging. Inspect for any signs of damage during transit.
- Placement: Choose a suitable location for the speaker. It can be placed on a stable, flat surface, mounted on a standard speaker tripod (using the 35mm TopHat mount at the bottom), or laid horizontally as a stage monitor. Ensure the speaker is stable and secure to prevent tipping.
- Power Connection: Locate the power input on the rear panel. Connect the supplied power cable to the speaker and then to a grounded 230V AC mains outlet. Ensure the power switch is in the 'OFF' position before connecting.
- Audio Source Connection:
- Line Input: For connecting devices like computers, tablets, MP3 players, or mixers, use the RCA or XLR LINE INPUT connectors on the rear panel.
- Microphone Input: For connecting a microphone, use the XLR or 6.3mm jack MIC INPUT connector.
- Initial Settings: Before powering on, ensure all volume controls (MASTER VOLUME, MIC VOLUME, LINE VOLUME) are set to their minimum position. Set BASS and TREBLE controls to the center (flat) position.

Figure 3: Rear view of the speaker, highlighting the integrated handles and wheels for portability.

Figure 4: Bottom view of the speaker, illustrating the TopHat mount for tripod installation.
5. Operating
Once the speaker is set up, follow these steps for operation:
- Power On: Flip the POWER switch on the rear panel to the 'ON' position. The power indicator light should illuminate.
- Adjust Line Volume: If using a line input, gradually increase the LINE VOLUME control to a comfortable listening level.
- Adjust Microphone Volume: If using a microphone, speak into the microphone and slowly increase the MIC VOLUME control until your voice is at the desired level. Avoid setting the microphone volume too high to prevent feedback.
- Master Volume: Use the MASTER VOLUME control to adjust the overall output level of the speaker.
- Tone Control: Use the BASS and TREBLE controls to adjust the low and high frequencies of the sound to your preference. Turning BASS clockwise increases low frequencies, and counter-clockwise decreases them. The same applies to TREBLE for high frequencies.
- Daisy Chaining (Optional): If connecting multiple speakers, use the XLR LINK OUTPUT to send the audio signal to another active speaker.
- Power Off: Before disconnecting power or inputs, turn all volume controls to their minimum position, then switch the POWER button to 'OFF'.
6. Maintenance
Proper maintenance ensures the longevity and optimal performance of your speaker:
- Cleaning: Regularly wipe the speaker cabinet with a soft, dry cloth. Do not use abrasive cleaners, solvents, or waxes.
- Dust: Keep the ventilation grilles free from dust and debris to ensure proper cooling. Use a soft brush or vacuum cleaner with a brush attachment.
- Storage: When not in use for extended periods, store the speaker in a dry, dust-free environment, preferably in its original packaging or a protective cover.
- Cable Care: Inspect power and audio cables regularly for any signs of damage. Replace damaged cables immediately.
- Avoid Overloading: Do not continuously operate the speaker at maximum volume, as this can lead to distortion and potential damage to the components.
7. Troubleshooting
If you encounter issues with your Vonyx SPJ-1200A, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound output |
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| Distorted sound |
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| Feedback (high-pitched squeal) |
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| No power indicator light |
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If the problem persists after trying these solutions, please contact qualified service personnel.
8. Specifications
Detailed technical specifications for the Vonyx SPJ-1200A active speaker:
| Specification | Value |
|---|---|
| Brand | VONYX |
| Model Name | SPJ-1200A |
| Speaker Type | Active (amplified) |
| Maximum Speaker Output Power | 600 Watts |
| RMS Power | 300 Watts |
| Woofer Diameter | 12 Inches |
| Frequency Response | 50 Hz - 18 kHz |
| Maximum SPL | 122 dB |
| Product Dimensions (L x W x H) | 29.5 x 37.5 x 58.5 cm |
| Weight | 11.33 kilograms |
| Color | Black |
| Material | Matte finish |
| Power Source | Corded Electric |
| Input Voltage | 230 Volts |
| Connectivity Technology | RCA, XLR |
| Wireless Communication Technology | No Wireless Communication Technology |
| Control Method | Tactile (Knobs) |
| Mounting Type | Floor, Tripod |
| Special Features | Integrated Amplifier, Line and Microphone Input, Wheels, Equalizer, TopHat (Pole Mount) |
| Included Components | Speaker (Power cable typically included, but not explicitly listed as 'included component' in JSON) |
| Recommended Product Uses | Public address, lounge/bar/restaurant, events, TVs, laptops, MP3 players, desktop computers, projectors |
| Compatible Devices | MP3 Player, Desktop Computer, Laptop, Projector, Television |
9. Warranty and Support
For warranty information and technical support, please refer to the documentation provided with your purchase or visit the official Vonyx website. Specific warranty terms may vary by region and retailer.





