SWS-8Xi - Subwoofer Earthquake Sound - Free user manual and instructions
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| Product Type | Car Audio Subwoofer |
| Size | 8 inches |
| Impedance | 4 ohms (single voice coil) |
| RMS Power Handling | 250 Watts |
| Peak Power Handling | 500 Watts |
| Sensitivity | 86 dB (1W/1m) |
| Frequency Response | 25 Hz - 200 Hz |
| Voice Coil | 2-inch high-temperature aluminum |
| Cone Material | Polypropylene with mineral fill |
| Surround Material | Rubber |
| Recommended Enclosure | Sealed: 0.5 cu ft; Ported: 0.75 cu ft (tuned to 35 Hz) |
| Mounting Depth | 4.5 inches |
| Cutout Diameter | 7.25 inches |
| Weight | 8.5 lbs (3.9 kg) |
| Maintenance | Wipe with dry cloth; avoid moisture |
| Safety | Do not exceed rated power; use proper enclosure |
| Spare Parts | Contact Earthquake Sound for replacement diaphragms |
| Repairability | Recone kits available; professional recone recommended |
Frequently Asked Questions - SWS-8Xi Earthquake Sound
What is the recommended amplifier power for the SWS-8Xi?
An amplifier delivering 200-300 Watts RMS at 4 ohms is ideal. Ensure the amplifier's RMS rating matches the subwoofer's 250W RMS for optimal performance.
Can I use this subwoofer in a sealed or ported enclosure?
Yes, the SWS-8Xi works well in both. For sealed, use 0.5 cu ft; for ported, use 0.75 cu ft tuned to 35 Hz. Ported enclosures offer more output, sealed provide tighter bass.
What is the impedance and how should I wire it?
The SWS-8Xi has a single 4-ohm voice coil. Connect directly to a mono amplifier's positive and negative terminals. If using a 2-channel amp, bridge it to 4 ohms.
What is the mounting depth and cutout size?
Mounting depth is 4.5 inches, cutout diameter is 7.25 inches. Ensure your enclosure or vehicle has sufficient clearance.
Does the subwoofer require a break-in period?
Yes, a 10-15 hour break-in at low volume is recommended. This helps loosen the suspension and improve linearity. Gradually increase volume during break-in.
What type of power handling is RMS vs Peak?
RMS (250W) is continuous power handling; Peak (500W) is for short bursts. Always match the amplifier's RMS output to the sub's RMS for safe operation.
How do I clean the subwoofer?
Use a soft, dry cloth to wipe the cone and surround. Avoid liquids or abrasive cleaners. Do not dust the cone with compressed air as it may damage the diaphragm.
What if the subwoofer sounds distorted?
Check for clipping from the amplifier, incorrect enclosure volume, or a loose connection. Ensure gain is set properly and enclosure is sealed. Reduce volume if distortion persists.
Can I use this subwoofer in a home theater system?
Yes, with a suitable amplifier and enclosure. However, it is optimized for car audio. For home use, consider a dedicated plate amplifier with crossover set to 80 Hz.
Where can I find spare parts or service?
Contact Earthquake Sound support or authorized dealers for recone kits, voice coils, or service. Professional recone is recommended to maintain performance.
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