1. Introduction
Thank you for choosing the Seismic Audio Tremor-18Pair Powered PA 18-inch Subwoofer Speaker Cabinets. This manual provides essential information for the safe and efficient operation, setup, and maintenance of your new audio equipment. Please read this manual thoroughly before use and retain it for future reference.
The Tremor-18Pair subwoofers are designed to deliver powerful and clear low-frequency sound for various professional audio applications, including DJ gigs, weddings, church events, and club gigs.
Image 1.1: A pair of Seismic Audio Tremor-18 subwoofers, showcasing their robust design.
2. Safety Information
- Electrical Safety: Always connect the subwoofers to a grounded power outlet. Do not expose the unit to rain or moisture. Disconnect power before cleaning or servicing.
- Placement: Ensure the subwoofers are placed on a stable, level surface. Avoid placing them near heat sources, direct sunlight, or in areas with excessive vibration. Maintain adequate ventilation around the units.
- Hearing Protection: Prolonged exposure to high sound pressure levels can cause permanent hearing damage. Use appropriate hearing protection when operating the subwoofers at high volumes.
- Handling: The subwoofers are heavy (140 pounds each). Use proper lifting techniques or assistance when moving them to prevent injury. Utilize the recessed metal handles for transport.
- Water Resistance: These subwoofers are not water-resistant. Avoid exposure to liquids.
3. What's in the Box
Upon unpacking your Seismic Audio Tremor-18Pair, you should find the following items:
- Two (2) Powered 18-inch Subwoofer Cabinets (Model: Tremor 18)
- Power Cables (Quantity: 2)
- User Manual (this document)
Inspect all components for any signs of damage during shipping. If any items are missing or damaged, contact Seismic Audio customer support immediately.
4. Setup
4.1 Unpacking and Placement
- Carefully remove the subwoofers from their packaging. Retain the packaging for future transport or storage.
- Place each subwoofer on a flat, stable surface. Ensure there is sufficient space around the units for proper ventilation.
- The subwoofers feature recessed metal handles for easier lifting and positioning.
4.2 Connections
The Tremor 18 subwoofers utilize XLR connectivity for audio input and output. They also feature two Speakon and two Banana power outputs for satellite speakers, and can be daisy-chained.
- Power Connection: Connect the provided power cable to the subwoofer's power input and then to a grounded AC power outlet.
- Audio Input: Connect your audio source (e.g., mixer, PA system) to the subwoofer's XLR input using a balanced XLR cable.
- Audio Output (Daisy Chain): To connect multiple subwoofers or send the signal to full-range speakers, use the XLR output.
- Satellite Speaker Output: If using satellite speakers, connect them to the subwoofer's Speakon or Banana power outputs.
Image 4.1: Rear panel connections and controls for the Tremor-18 subwoofer.
5. Operating Instructions
5.1 Powering On/Off
- Ensure all audio connections are secure before powering on.
- Turn the main volume control to its minimum setting.
- Flip the power switch to the 'ON' position. The power indicator light will illuminate.
- To power off, turn the volume down and then flip the power switch to 'OFF'.
5.2 Volume and Tone Control
- Subwoofer Volume: Adjust the dedicated subwoofer volume control to achieve the desired bass level.
- Satellite Volume: If satellite speakers are connected, use the separate satellite volume control to balance their output with the subwoofer.
- Bass Boost: Engage the Bass Boost feature for enhanced low-frequency impact, if desired.
5.3 Usage Scenarios
The Tremor-18Pair subwoofers are versatile and suitable for:
- DJ gigs
- Weddings
- Church events
- Club gigs
- Studio applications
- Live sound reinforcement
Image 5.1: The Tremor-18 subwoofers are suitable for a variety of professional audio environments.
6. Maintenance
- Cleaning: Disconnect power before cleaning. Use a soft, dry cloth to wipe down the cabinet. Do not use abrasive cleaners, solvents, or waxes.
- Storage: When not in use for extended periods, store the subwoofers in a dry, cool environment, ideally in their original packaging or protective covers.
- Inspection: Periodically check power cables and audio cables for any signs of wear or damage. Ensure all connections are secure.
7. Troubleshooting
If you encounter issues with your Tremor-18Pair subwoofers, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound output |
|
|
| Distorted sound |
|
|
| No power indicator light |
|
|
If the problem persists after attempting these solutions, please contact Seismic Audio customer support.
8. Specifications
The Seismic Audio Tremor-18Pair Powered PA 18-inch Subwoofer Speaker Cabinets feature the following specifications:
- Model: Tremor 18 (Pair)
- Subwoofer Size: 18 inches
- Magnet: 90 oz
- Voice Coil: 3 inches
- RMS Power: 500 Watts per cabinet
- Peak Power: 1000 Watts per cabinet
- Amplifier Type: Class D
- Frequency Response: 300 Hz (upper limit, typical for subwoofers)
- Connectivity: XLR (input/output), Speakon (output), Banana (output)
- Audio Output Mode: Balanced Stereo
- Impedance: 8 Ohms
- Features: Bass Boost, Separate Sub and Satellite Volume, Daisy Chain capability, Recessed Metal Handles
- Cabinet Material: Black carpet with black metal corners
- Dimensions (D x W x H): 24.25" x 22.25" x 26.5" (per cabinet)
- Weight: 140 Pounds (per cabinet)
- Color: Black
- Water Resistance Level: Not Water Resistant
Image 8.1: Dimensional overview of the Tremor-18 subwoofer cabinet.
9. Warranty Information
The Seismic Audio Tremor-18Pair Powered PA 18-inch Subwoofer Speaker Cabinets come with a Limited Warranty. For specific details regarding warranty coverage, duration, and terms, please refer to the warranty card included with your product or visit the official Seismic Audio website. Keep your proof of purchase for warranty claims.
10. Customer Support
For technical assistance, service, or any questions not covered in this manual, please contact Seismic Audio customer support. You can typically find contact information on the Seismic Audio website or through your retailer.
Seismic Audio Website: www.seismicaudio.com
When contacting support, please have your product model (Tremor 18) and purchase date available.