1. Introduction and Overview
The Rockville RBG15S is a 15-inch active powered PA subwoofer designed to enhance the low-frequency response of your audio system. It features a robust design with advanced digital signal processing (DSP) and a built-in limiter for optimal performance and protection. This manual provides detailed instructions for the safe and efficient operation of your subwoofer.
Figure 1: Front view of the Rockville RBG15S 15-inch Active Powered PA Subwoofer.
2. Safety Instructions
To ensure safe operation and prevent damage, please read and follow these safety guidelines:
- Do not expose this unit to rain or moisture.
- Do not remove the cover. No user-serviceable parts inside. Refer servicing to qualified service personnel.
- Ensure proper ventilation; do not obstruct air vents.
- Connect to a grounded power outlet.
- Avoid placing the unit on unstable surfaces.
- Do not operate near heat sources or open flames.
- Use only specified power cords and accessories.
3. Features
The Rockville RBG15S subwoofer offers a range of features designed for professional audio applications:
- 15-inch Woofer with 70oz Magnet and 3-inch Voice Coil.
- 400 Watts RMS - 800 Watts Program - 1600 Watts Peak Power.
- Frequency Response: 40Hz-2000Hz.
- Adjustable Crossover Control: 45Hz-500Hz.
- Maximum SPL on 1w - 1m: 120dB Peak - 115dB Continuous.
- Digital Signal Processor (DSP) with Boost for Extended Low Frequency Control.
- Power-On and Signal Input LED Indicators.
- Clip Limiter Circuitry with LED Indicator.
- Balanced XLR and TRS input jacks.
- Balanced XLR thru-output jacks for parallel connections.
- Passive heat sink with heat sensitive variable speed auto turn-on fan for cooling.
- Subwoofer Level Adjustment.
- Subwoofer Phase Control.
- Built-in pole mount socket.
- Built-in carrying handles.
- Custom metal grill.
- Durable black carpet with black metal corners.
- 7-layer Birch 5/8 inch plywood baffle construction.
- Aluminum former voice coils with copper winding.
4. Setup
Proper setup is crucial for optimal performance. Follow these steps to integrate your RBG15S subwoofer into your audio system.
4.1 Unboxing and Initial Placement
Carefully remove the subwoofer from its packaging. The unit includes a power cable and an information booklet. Place the subwoofer on a stable, flat surface. The unit features built-in carrying handles for easier transport.
Figure 2: Included power cable and manual.
4.2 Connecting the Subwoofer
The RBG15S offers versatile connection options. You can connect it directly to a mixer or daisy-chain it with other speakers.
Video 1: Official guide on how to set up your Rockville RBG15S subwoofer.
Video 2: Demonstration of setting up Rockville powered PA speakers with 15-inch powered subwoofers.
4.3 Pole Mounting
The subwoofer features a built-in pole mount socket on the top, allowing you to mount a full-range PA speaker above it for an elevated sound dispersion.
Figure 3: Top view showing the pole mount socket.
5. Operating Instructions
Familiarize yourself with the controls on the rear panel to optimize your sound.
Figure 4: Rear panel of the RBG15S subwoofer.
5.1 Controls Overview
- Level Control: Adjusts the overall output volume of the subwoofer.
- Low Pass Crossover: Filters out high frequencies, allowing only the desired low frequencies to pass through to the subwoofer. Adjustable from 45Hz to 500Hz.
- Polarity Switch: Inverts the subwoofer's polarity (0° or 180°) to ensure proper phase alignment with other speakers in your system.
- DSP (Digital Signal Processor): Offers options for 'Boost', 'Off', or 'Extended Low Frequency' enhancement.
- Clip Limiter: Prevents distortion by limiting the signal when it reaches clipping levels. Indicated by an LED.
- Front LED ON/OFF: Controls the illumination of the front panel LED.
Figure 5: Close-up of DSP and crossover controls.
6. Connections
The RBG15S provides flexible input and output options for various setups.
6.1 Input Jacks
- Balanced XLR and TRS Input Jacks: Connect your audio source (e.g., mixer, audio interface) to these inputs.
- Unbalanced Line In (RCA): For connecting consumer-level audio equipment.
6.2 Output Jacks
- Balanced XLR Thru-Output Jacks: Use these to send the audio signal to additional powered speakers or subwoofers in a daisy-chain configuration.
7. Maintenance
To ensure the longevity and optimal performance of your Rockville RBG15S subwoofer, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the exterior of the unit. Avoid abrasive cleaners or solvents.
- Ventilation: Regularly check that the cooling fan and air vents are free from dust and debris. Ensure adequate airflow around the unit.
- Storage: When not in use for extended periods, store the subwoofer in a cool, dry place, away from direct sunlight and extreme temperatures.
- Handling: Always use the built-in carrying handles when moving the subwoofer. Avoid dropping or subjecting the unit to strong impacts.
8. Troubleshooting
If you encounter issues with your RBG15S subwoofer, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Power cable not connected; Power switch off; Blown fuse | Ensure power cable is securely connected; Turn power switch ON; Check and replace fuse if necessary. |
| No sound output | Input cable not connected; Volume level too low; Crossover set too high/low; Source device issue | Check input cable connections; Increase volume level; Adjust crossover frequency; Verify source device is sending audio. |
| Distorted sound | Input signal too high (clipping); Subwoofer volume too high; Damaged speaker component | Reduce input signal level; Lower subwoofer volume; If distortion persists, contact support. |
| Weak bass response | Phase issue; Crossover set incorrectly; Room acoustics | Toggle polarity switch (0°/180°); Adjust crossover frequency; Experiment with subwoofer placement in the room. |
9. Specifications
Detailed technical specifications for the Rockville RBG15S 15-inch Active Powered PA Subwoofer:
- Mounting Type: Floor Standing
- Material: 7-Layer Birch 5/8" Plywood Baffle, Durable Black Carpet, Black Metal Corners, Custom Metal Grill, Aluminum Former Voice Coils with Copper Winding
- Model Name: RBG15S
- Speaker Type: Subwoofer
- Recommended Uses For Product: For Music Players, Live Events, Professional Audio, Large Parties
- Compatible Devices: Smartphone, Tablet, MP3 Player, Desktop, Television, Projector, Laptop
- Subwoofer Diameter: 15 Inches
- Unit Count: 1.0 Count
- Surround Sound Channel Configuration: 5.1, 7.1
- Color: Black
- Included Components: PA Subwoofer
- Product Dimensions: 24"D x 24"W x 27"H
- Item Weight: 93.2 Pounds
- Warranty Type: Limited
- Control Method: Voice
- Speaker Size: 15 Inches
- Woofer Diameter: 15 Inches
- Audio Driver Type: Dynamic Driver
- Audio Driver Size: 15 Inches
- UPC: 811080022321
- Speaker Amplification Type: Active
- Output Wattage: 400 Watts
- Wattage: 400 watts
- Speaker Maximum Output Power: 1600 Watts
- Frequency Response: 2000 Hz (Upper limit, full range is 40Hz-2000Hz)
- Connectivity Technology: TRS, XLR
- Audio Output Mode: Stereo
Figure 6: Dimensions of the RBG15S subwoofer.
10. Warranty and Support
The Rockville RBG15S comes with a Limited Warranty. For specific details regarding warranty coverage and duration, please refer to the product registration warranty information booklet included with your purchase.
For technical support, troubleshooting assistance, or service inquiries, please contact Rockville customer support. You can find contact information in your product documentation or by visiting the official Rockville website.
