1. Introduction
The Infinity REFERENCE-1270 is a 12-inch component subwoofer designed to deliver enhanced efficiency and high output. It features progressive spiders for precise control at excursion limits, resulting in tighter bass characteristics. The subwoofer incorporates high-roll surrounds, a proprietary cone design, and long-excursion capabilities to produce deep, powerful bass with accuracy. An exclusive SSI (Selectable Smart Impedance) switch allows users to choose between 2-ohm or 4-ohm impedance, offering maximum configuration flexibility for various audio systems.
2. Key Features
- 12-inch Component Subwoofer: Designed for powerful and accurate bass reproduction.
- Polypropylene Cone: Provides durability and optimal sound performance.
- Nitrile Rubber Surround: Ensures long-lasting flexibility and excursion control.
- SSI (Selectable Smart Impedance) Switch: Allows selection between 2-ohm and 4-ohm impedance for versatile system matching.
- Power Handling: Rated at 275 watts RMS (1100 watts peak) for robust performance.
3. Product Overview Video
Video: An official overview of the Infinity Reference Subwoofer series, showcasing its design, features like high-roll rubber surround, vented basket for cooling, and selectable smart impedance. This video provides a visual demonstration of the subwoofer's key attributes and design philosophy.
4. Setup and Installation
4.1 Unpacking
Carefully remove the subwoofer from its packaging. Inspect the unit for any signs of damage during transit. The package should contain one Infinity REFERENCE-1270 subwoofer.
4.2 Mounting Considerations
The REFERENCE-1270 is a component subwoofer, meaning it requires a suitable enclosure for optimal performance. Ensure the enclosure is properly sized and constructed for a 12-inch subwoofer. The mounting type is flush mount.

Figure 1: Front view of the Infinity REFERENCE-1270 subwoofer.
4.3 SSI (Selectable Smart Impedance) Switch
The subwoofer features an SSI switch located on the back of the unit, allowing you to select between 2-ohm and 4-ohm impedance. This feature provides flexibility for matching the subwoofer with various amplifiers.Important: Ensure the impedance setting matches your amplifier's capabilities to prevent damage to the amplifier or subwoofer. Adjust the switch before connecting the subwoofer to the amplifier.

Figure 2: SSI (Selectable Smart Impedance) switch for impedance selection.
4.4 Wiring Connections
Connect the subwoofer to your amplifier using appropriate gauge speaker wire. Ensure correct polarity (+ to + and - to -) for optimal sound performance. Refer to your amplifier's manual for specific wiring diagrams and recommendations based on the selected impedance.

Figure 3: Rear view showing terminal connections.
5. Operating Instructions
Once properly installed and connected, the subwoofer will reproduce low-frequency audio signals from your car audio system.
5.1 Initial Power-Up
- Before turning on your audio system, double-check all wiring connections.
- Start with the amplifier's gain control set to minimum.
- Gradually increase the volume and adjust the amplifier's gain and crossover settings to achieve desired bass output without distortion.
5.2 Break-in Period
Allow a break-in period of approximately 10-20 hours of normal listening before operating the subwoofer at high volumes. This allows the suspension components to loosen up and achieve optimal performance.
6. Maintenance
- Cleaning: Use a soft, dry cloth to clean the subwoofer cone and surround. Avoid using harsh chemicals or abrasive cleaners.
- Inspection: Periodically check the speaker wire connections for tightness and corrosion. Ensure the subwoofer is securely mounted in its enclosure.
- Environmental Protection: Protect the subwoofer from extreme temperatures, moisture, and direct sunlight, which can degrade performance and lifespan.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No Sound from Subwoofer |
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| Distorted Bass |
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| Weak Bass Output |
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8. Specifications
| Feature | Detail |
|---|---|
| Model Name | REFERENCE-1270 |
| Speaker Type | Subwoofer, Woofer |
| Subwoofer Diameter | 12 Inches |
| Material | Polypropylene, Nitrile Rubber |
| Power Handling (RMS) | 275 Watts |
| Power Handling (Peak) | 1100 Watts |
| Impedance | Selectable 2-ohm or 4-ohm (SSI) |
| Product Dimensions (D x W x H) | 14.5"D x 17"W x 13.38"H |
| Item Weight | 6 Pounds |
| Mounting Type | Flush Mount |
| Connectivity Technology | Wired |
| Manufacturer | Infinity |
| UPC | 050036345323 |

Figure 4: Subwoofer dimensions.
9. What's in the Box
- 1x Infinity REFERENCE-1270 12-Inch Subwoofer
- (Additional accessories may vary by retailer)
10. Warranty and Support
The Infinity REFERENCE-1270 subwoofer comes with a limited warranty. For detailed warranty information, including terms, conditions, and duration, please refer to the warranty card included with your product or visit the official Infinity website. For technical support, service, or replacement parts, contact Infinity customer service.





