dBTechnologies DVA S30 N Active 2x18" Subwoofer
This manual provides essential information for the safe installation, operation, and maintenance of the dBTechnologies DVA S30 N active 2x18" subwoofer.
Important Safety Precautions
⚠️ Please read and understand all safety instructions before operating the equipment. Failure to comply may result in personal injury or equipment damage.
- Ensure the power supply voltage matches the unit's requirements.
- Do not expose the unit to rain or moisture.
- Avoid placing heavy objects on the unit or its cables.
- Ensure adequate ventilation; do not block air vents.
- Disconnect power before cleaning or servicing.
- Do not attempt to service the unit yourself; refer to qualified personnel.
- Handle with care to avoid damage to drivers and cabinet.
Product Overview
The dBTechnologies DVA S30 N is a high-performance active subwoofer designed for professional audio applications. It features two 18-inch woofers powered by a robust Class D amplifier, delivering deep and powerful bass frequencies. The integrated digital sound processor (DSP) allows for precise tuning and optimization of the sound output.
Key Features
- Dual 18" woofers for extended low-frequency response.
- Integrated Class D amplifier for high efficiency and power.
- Digital Sound Processor (DSP) with selectable presets (e.g., Flat, Deep, Cardioid).
- Robust plywood cabinet for durability and acoustic performance.
- Professional-grade connectors (XLR, powerCON).
- Designed for touring, live sound, and fixed installations.
Technical Specifications
| Parameter | Value |
|---|---|
| System Type | Active 2x18" Subwoofer |
| Woofer | 2x 18" (460 mm) with 4" (100 mm) voice coil |
| Amplifier Type | Digipro® G3 Class D |
| RMS Power | 3000 W |
| Peak Power | 6000 W |
| Frequency Response [+/- 3dB] | 30 Hz - 120 Hz |
| Max SPL (1W @ 1m) | 142 dB |
| Processor | DSP with 8 Presets (e.g., Flat, Deep, Cardioid) |
| Limiter | RMS/Peak, Thermal |
| Input Connectors | 2x XLR (Balanced) ? |
| Output Connectors | 2x XLR (Balanced) ? (Link Out) |
| Power Connector | 1x powerCON ? |
| Cabinet | Birch Plywood |
| Handles | Integrated |
| Rigging Points | Optional |
| Dimensions (WxHxD) | 1000 x 520 x 720 mm (39.37 x 20.47 x 28.35 in) |
| Weight | 90 kg (198.41 lbs) |
Connections and Setup
The DVA S30 N is designed for easy integration into professional sound systems.
Rear Panel Description:
The rear panel houses all input, output, and control connections:
- Signal Input (XLR ?): Two balanced XLR female connectors for receiving the audio signal. Use high-quality balanced XLR cables.
- Link Output (XLR ?): Two balanced XLR male connectors for sending the processed audio signal to other DVA S30 N subwoofers or full-range speakers.
- DSP Control Panel (⚙️): Features a rotary encoder and display for selecting and configuring DSP presets. Buttons allow navigation and selection. Common presets include 'Flat' (neutral response), 'Deep' (extended low-end), and 'Cardioid' (for directional bass patterns).
- Power Input (powerCON ?): A locking power connector for mains power. Ensure the connected power cable is rated for the unit's power consumption.
- Status LEDs: Indicate power, signal presence, limiter activity, and fault conditions.
Signal Cabling:
Connect the audio source (e.g., mixer, processor) to the Signal Input (XLR ?) using balanced XLR cables. If linking multiple subwoofers or sending to full-range speakers, use the Link Output (XLR ?) connectors.
Power Connection:
Connect the included powerCON cable to the unit's power input and to a suitable mains power outlet. Ensure the mains voltage is correct.
Operation
Once connected and powered on, the DVA S30 N can be configured using the DSP control panel.
DSP Presets:
Use the rotary encoder and buttons to navigate the DSP menu. Select the appropriate preset based on your application and desired sound characteristics. The 'Cardioid' preset is particularly useful for managing bass buildup and directing low frequencies forward when multiple subwoofers are used.
Gain Structure:
Set the input gain levels appropriately to avoid clipping the signal while ensuring sufficient output. Refer to the main system's gain structure guidelines.
System Integration:
The DVA S30 N is designed to complement full-range loudspeakers. Ensure the crossover frequency is set correctly to achieve a seamless blend between the subwoofer and the main speakers.
Maintenance
Regular maintenance ensures optimal performance and longevity of the unit.
- Keep the unit clean and free from dust and debris. Use a soft, dry cloth for cleaning.
- Ensure ventilation openings are clear.
- Periodically inspect power and signal cables for damage.
- Avoid exposing the unit to extreme temperatures or humidity.
- For any internal issues, contact authorized service personnel.
Troubleshooting
If you encounter issues, consult the following table before contacting support.
| Problem | Possible Cause | Solution |
|---|---|---|
| No Sound Output | No signal input. | Check audio source and signal cables. Ensure correct input is selected. |
| No Sound Output | Unit not powered on. | Check power connection and power switch. Verify mains power is available. |
| No Sound Output | DSP mute or incorrect preset. | Check DSP settings. Select an appropriate preset. |
| No Sound Output | Fault condition indicated. | Check status LEDs. Refer to LED indicator meanings (if detailed in full manual). Contact support if a fault is indicated. |
| Distorted Sound | Input signal clipping. | Reduce input gain from the source. |
| Distorted Sound | Amplifier limiter engaged excessively. | Reduce input signal level or check system gain structure. Ensure adequate ventilation. |
| Hum or Noise | Ground loop. | Use balanced cables. Ensure proper grounding of all equipment. Try a different power outlet. |
| Hum or Noise | Interference. | Keep audio cables away from power cables. |
Warranty Information
The dBTechnologies DVA S30 N comes with a manufacturer's warranty. Please refer to the warranty card included with your product or visit the dBTechnologies website for detailed terms and conditions. Registration may be required.
