1. Introduction
Thank you for purchasing the VONYX CVB15 Active Professional Speaker. This manual provides essential information for the safe and efficient operation of your new audio equipment. Please read this manual thoroughly before use and retain it for future reference.
The VONYX CVB15 is a versatile 2-way bass reflex speaker designed for various audio applications. It features an integrated high-power 800W amplifier, Bluetooth connectivity for wireless audio streaming, a 15-inch high-efficiency woofer, a piezo tweeter for clear highs, and a multimedia player with SD/USB input. Additionally, it includes a microphone input with an echo effect for vocal performances or announcements.
2. Safety Instructions
- Power Supply: Ensure the power supply voltage matches the rating on the speaker. Disconnect from the mains before cleaning or servicing.
- Ventilation: Do not block ventilation openings. Install according to the manufacturer's instructions.
- Water and Moisture: Do not expose the speaker to rain or moisture. Do not place objects filled with liquids, such as vases, on the apparatus.
- Heat Sources: Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
- Cables: Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.
- Servicing: Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
- Placement: Place the speaker on a stable, flat surface or mount it securely on a compatible speaker stand. Avoid placing it in direct sunlight or in areas with excessive dust or vibration.
- Hearing Protection: Prolonged exposure to high volume levels can cause permanent hearing damage. Use caution when setting volume levels.
3. Package Contents
Please check that all items are present and in good condition upon opening the package:
- VONYX CVB15 Active Professional Speaker
- Power Cable
- Remote Control
- User Manual (this document)
4. Product Features
The VONYX CVB15 speaker offers a range of features for enhanced audio performance and versatility:
- Active 2-Way Bass Reflex System: Delivers clear and powerful sound across the frequency spectrum.
- High-Power Amplifier: Integrated 800W amplifier ensures robust audio output.
- Bluetooth Connectivity: Seamless wireless audio streaming from compatible devices like smartphones, tablets, and computers.
- Multimedia Player: Built-in SD/USB player with a display for direct playback of audio files.
- 15-inch High-Efficiency Woofer: Provides deep and impactful bass.
- Piezo Tweeter: Ensures crisp and detailed mid-range and high-frequency reproduction.
- Microphone Input with Echo Effect: Ideal for vocal performances, public speaking, or karaoke.
- Durable Construction: Carpeted finish and reinforced structure for portability and protection.
- Integrated Handles: For easy transport.
- Pole Mount Socket: Allows for mounting on a standard speaker stand.

Image 1: Front-side view of the VONYX CVB15 Active Professional Speaker, showcasing its robust design and front grille.
5. Setup
- Unpacking: Carefully remove the speaker from its packaging. Retain the packaging for future transport or storage.
- Placement: Position the speaker on a stable, level surface. For optimal sound dispersion, consider mounting it on a speaker stand using the integrated pole mount socket. Ensure the stand is stable and can support the speaker's weight.
- Power Connection: Connect the supplied power cable to the AC IN socket on the rear panel of the speaker and then to a suitable mains power outlet. Ensure the power switch is in the OFF position before connecting.
- Audio Input Connections:
- Microphone: Connect a microphone to the XLR/6.35mm combi input on the rear panel.
- Line Input: Connect external audio sources (e.g., mixer, CD player) to the RCA or 6.35mm line inputs.
- Power On: Once all connections are secure, switch the power button on the rear panel to the ON position. The display on the media player should illuminate.

Image 2: Detailed view of the rear panel of the VONYX CVB15 speaker, showing various inputs, outputs, and control knobs.

Image 3: The VONYX CVB15 speaker positioned on a compatible speaker stand, demonstrating a typical setup for optimal sound projection.
6. Operating
6.1. Basic Controls
- Master Volume: Adjusts the overall output volume of the speaker.
- Microphone Volume: Controls the volume of the connected microphone.
- Echo Control: Adjusts the intensity of the echo effect for the microphone input.
- Treble/Bass Controls: Fine-tune the high and low frequencies of the audio output.
6.2. Bluetooth Pairing
- Ensure the speaker is powered on.
- Press the "MODE" button on the media player or remote control until "Bluetooth" is selected. The display will show "BT" or "Bluetooth" and may flash, indicating it's in pairing mode.
- On your Bluetooth-enabled device (smartphone, tablet, etc.), enable Bluetooth and search for available devices.
- Select "VONYX CVB15" from the list of devices.
- Once paired, the speaker will emit a confirmation tone, and the display will stop flashing. You can now stream audio wirelessly to the speaker.
6.3. USB/SD Media Player
- Insert a USB flash drive or SD card (formatted to FAT32) containing audio files into the respective slot on the media player.
- The speaker will automatically switch to USB or SD mode and begin playing the first compatible audio file. If not, press the "MODE" button to select USB or SD.
- Use the playback controls (Play/Pause, Next, Previous) on the media player or remote control to navigate your music.
6.4. Remote Control Operation
The included remote control provides convenient access to various functions:

Image 4: The remote control for the VONYX CVB15 speaker, featuring buttons for playback, volume, channel selection, and EQ.
- PLAY/PAUSE: Starts or pauses playback.
- VOL+/-: Adjusts the volume.
- CH+/- (CHANNEL): Navigates between tracks or radio channels (if applicable).
- PREV/NEXT: Skips to the previous or next track.
- EQ: Cycles through equalizer presets.
- Numeric Buttons (0-9): Direct track selection (for USB/SD mode).
- PICK SONG: Selects a specific song number.
- CH SET: Channel setting (if applicable).
7. Maintenance
- Cleaning: Disconnect the speaker from the power supply before cleaning. Use a soft, dry cloth to wipe the exterior surfaces. Do not use abrasive cleaners, waxes, or solvents.
- Storage: If the speaker will not be used for an extended period, store it in a dry, dust-free environment, preferably in its original packaging.
- Ventilation: Ensure the ventilation openings are kept clear of dust and debris to prevent overheating.
8. Troubleshooting
If you encounter issues with your VONYX CVB15 speaker, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Power cable not connected; power switch off; faulty power outlet. | Check power cable connection; ensure power switch is ON; try a different power outlet. |
| No sound output | Volume too low; incorrect input selected; audio source issue; faulty cable. | Increase master volume; select correct input mode (Bluetooth, USB, Line); check audio source device; replace audio cables. |
| Bluetooth not pairing | Speaker not in pairing mode; device too far; interference; previously paired device connected. | Ensure speaker is in Bluetooth pairing mode; move device closer; avoid interference; disconnect from other Bluetooth devices. |
| USB/SD not playing | Incorrect file format; USB/SD card not formatted correctly; faulty USB/SD card. | Ensure audio files are compatible (e.g., MP3); format USB/SD card to FAT32; try a different USB/SD card. |
| Distorted sound | Volume too high (clipping); faulty audio source; damaged speaker component. | Reduce volume; check audio source for distortion; if problem persists, contact support. |
9. Specifications
| Feature | Detail |
|---|---|
| Brand | VONYX |
| Model Number | CVB15 |
| Speaker Type | Active 2-Way Bass Reflex, Multimedia |
| Woofer Size | 15 Inches |
| Max Output Power | 800 Watts |
| Connectivity Technology | Bluetooth, USB |
| Special Features | Bluetooth, Tweeters, SD/USB Media Player, Microphone Input with Echo |
| Control Method | Tactile (on-board controls), Remote Control |
| Mounting Type | Table Mount, Pole Mount |
| Product Dimensions (L x W x H) | 40 x 46.5 x 72.5 cm |
| Weight | Approximately 13 kg |
| Color | Black |
10. Warranty and Support
VONYX products are manufactured to high quality standards. In the unlikely event of a problem with your product, please contact your retailer or the VONYX customer support for assistance. Please retain your proof of purchase for warranty claims.
For further information or technical support, please visit the official VONYX website or contact their customer service department.





