Reference 810W.IB - Subwoofer INFINITY - Free user manual and instructions
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| Product Type | Subwoofer Speaker |
| Brand | Infinity |
| Model | Reference 810W.IB |
| Category | Subwoofer |
| Driver Size | 8 inches |
| Design | Infinite baffle compatible |
| Impedance | 4 ohms |
| RMS Power Handling | 250 W |
| Peak Power Handling | 1000 W |
| Frequency Response | 28 Hz – 500 Hz |
| Sensitivity | 84 dB @ 1W/1m |
| Recommended Sealed Enclosure Volume | 0.35 ft³ |
| Recommended Ported Enclosure Volume | 0.60 ft³ |
| Mounting Depth | 4.2 inches |
| Mounting Cutout Diameter | 7.1 inches |
| Cone Material | Polypropylene |
| Surround Material | Rubber |
| Weight | 8 lbs (3.6 kg) |
| Power Source | External amplifier required |
| Main Function | Low-frequency audio reproduction |
| Care and Cleaning | Wipe with a dry microfiber cloth; avoid moisture and solvents |
| Safety Warnings | Disconnect power before installation; avoid exposure to water |
| Spare Parts and Repairability | Recone kits and replacement voice coils available through service centers |
| General Information | External amplifier required; compatible with sealed and infinite baffle enclosures |
Frequently Asked Questions - Reference 810W.IB INFINITY
What impedance is the Infinity Reference 810W.IB subwoofer?
The subwoofer has a 4 ohm impedance, making it compatible with most car audio amplifiers.
How much power can this subwoofer handle?
It handles 250 W RMS and 1000 W peak, so choose an amplifier that delivers 200–300 W RMS at 4 ohms.
What does IB mean in the model name?
"IB" stands for infinite baffle, meaning the subwoofer is designed to be mounted in a sealed, flat baffle with the rear wave isolated from the front.
What type of enclosure should I use?
This subwoofer works well in a sealed enclosure with about 0.35 ft³ or a ported enclosure tuned around 35 Hz with about 0.60 ft³.
Can I install it in a car door or rear deck?
Yes, its infinite baffle design makes it ideal for free-air mounting on a rear deck or in a cargo area, as long as the mounting surface is rigid and airtight.
How do I clean the subwoofer?
Use a dry microfiber cloth to gently dust the cone and surround. Never use solvents, water or compressed air, as these can damage the polypropylene cone.
How should I connect the subwoofer to an amplifier?
Connect the positive terminal to the amplifier's positive output and the negative terminal to the negative output. Keep the phase consistent with the other speakers for better bass.
Is there a break-in period?
Play music at moderate volume for about 20 hours to allow the suspension to loosen and improve low-frequency performance.
What should I do if there is distortion?
Check for clipping by reducing the amplifier gain, verify the signal source is not distorted, and inspect the subwoofer for loose wiring or enclosure air leaks.
Are spare parts available for this model?
Replacement recone kits and voice coils may be ordered through Infinity authorized service centers. Many parts remain available for this model.
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USER MANUAL Reference 810W.IB INFINITY
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Product information
Brand : INFINITY
Model : Reference 810W.IB
Category : Subwoofer