Infinity Basslink SM2 - Powered Underseat Subwoofer User Manual

Introduction

Thank you for choosing the Infinity Basslink SM2 Powered Underseat Subwoofer. This manual provides essential information for the proper installation, operation, and maintenance of your new audio system component. Please read this manual thoroughly before attempting to install or operate the Basslink SM2 to ensure optimal performance and safety.

Important Safety Information

• Always disconnect the vehicle's battery negative terminal before beginning any electrical work.
• Ensure all wiring is properly routed and secured to prevent damage or interference with vehicle operation.
• Do not expose the Basslink SM2 to moisture or extreme temperatures.
• Consult a professional installer if you are unsure about any part of the installation process.
• This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

Package Contents

Please verify that all items are present in the package:

• 1 x Infinity Basslink SM2 Powered Woofer Enclosure
• 4 x Mounting Screws
• 1 x Owner's Manual (this document)
• 1 x Remote Bass Level Control

Product Overview

The Infinity Basslink SM2 is a self-powered, compact subwoofer system designed to deliver powerful bass in vehicles where space is limited. Its shallow-profile 8-inch woofer and efficient Class D amplifier are integrated into a custom-tuned enclosure.

Figure 1: Top view of the Basslink SM2, showcasing the 8-inch woofer with the Infinity logo and the main enclosure design.

Figure 2: Side view of the Basslink SM2, highlighting the input and control panel with various adjustments for audio tuning.

Key Features:

• Proprietary, Shallow-Profile Woofer: An 8-inch (200mm) subwoofer specifically designed for low distortion and excellent bass performance within its compact enclosure.
• Efficient Class D Amplifier: Produces minimal heat and requires low current from the vehicle's electrical system.
• Intelligent Electronic Design: Incorporates high-pass filters and limiters for exceptional performance at its limits.
• Flexible EQ Adjustments: Includes Level control to match volume with other speakers and Bass Boost to optimize bass frequencies.
• Wired Remote Level Control: Compatible with the included JBL GTO-RBC for convenient remote bass level adjustment.

Setup and Installation

The Basslink SM2 is designed for underseat installation in many vehicles. Proper installation is crucial for optimal performance and safety.

Mounting Location:

Choose a location that is dry, well-ventilated, and does not interfere with vehicle controls or passenger movement. The area under a front seat is often ideal due to its compact design.

Figure 3: Example of the Basslink SM2 installed discreetly under a vehicle seat, demonstrating its compact form factor.

Wiring Connections:

The Basslink SM2 requires power, ground, remote turn-on, and audio input connections. Refer to the connection diagram on the unit's control panel (Figure 2) for specific terminal locations.

• Power (+BAT): Connect to the vehicle's positive battery terminal via a fused power cable. Ensure the fuse is located within 18 inches (45 cm) of the battery.
• Ground (GND): Connect to a clean, unpainted metal surface of the vehicle chassis. Ensure a good electrical connection.
• Remote (REM): Connect to the remote turn-on output of your head unit. If your head unit does not have a remote output, you can use the Basslink SM2's Audio Sense feature.
• Audio Input (Line In / High Level In):
  • Line In (RCA): For head units with RCA pre-outs.
  • High Level In: For head units without RCA pre-outs, connect directly to the vehicle's speaker wires.
• Remote Bass Level Control: Connect the included remote control to the "REMOTE" port on the Basslink SM2 for convenient bass adjustment from the driver's seat.

Operating Instructions

Once installed, the Basslink SM2 can be tuned to integrate seamlessly with your vehicle's audio system.

Control Panel Adjustments:

• Level: Adjusts the overall output volume of the subwoofer. Start with this control at minimum and slowly increase until the bass blends well with your main speakers.
• Crossover (XOVER): This is a low-pass filter that determines the highest frequency the subwoofer will play. Adjust this to blend with your main speakers. A common starting point is 80Hz-100Hz.
• Phase (0°/180°): Adjusts the phase of the subwoofer's output relative to your main speakers. Listen to music with strong bass and switch between 0° and 180° to find the setting that produces the most impactful and coherent bass.
• Bass Boost: Provides an adjustable boost to specific bass frequencies. Use sparingly to enhance bass impact without distortion.
• Audio Sense (OFF/ON 12V/ON 120mV): Controls how the unit turns on.
  • OFF: Requires a remote turn-on signal from the head unit.
  • ON 12V: Turns on when a 12V signal is detected on the remote wire.
  • ON 120mV: Turns on when an audio signal is detected on the high-level inputs. Useful if your head unit lacks a remote turn-on output.
• Input Load (10K / 120Ω): Adjusts the input impedance for optimal compatibility with different head units. Consult your head unit's manual or experiment to find the best setting.

Remote Bass Level Control:

The wired remote allows you to conveniently adjust the subwoofer's output level from your driving position without accessing the unit directly. This is useful for fine-tuning bass response on the fly for different music genres or listening preferences.

Maintenance

The Basslink SM2 is designed for durability and requires minimal maintenance.

• Cleaning: Use a soft, dry cloth to wipe down the unit. Do not use abrasive cleaners or solvents.
• Inspection: Periodically check all wiring connections to ensure they are secure and free from corrosion.
• Ventilation: Ensure the area around the unit remains clear to allow for proper heat dissipation.

Troubleshooting

If you experience issues with your Basslink SM2, refer to the following common problems and solutions:

If the problem persists after trying these solutions, please contact customer support.

Specifications

Warranty Information

The Infinity Basslink SM2 comes with a limited warranty. Please refer to the warranty card included with your product or visit the official Infinity website for detailed terms and conditions regarding warranty coverage, duration, and claims procedures.

Customer Support

For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact Infinity customer support. Contact information can typically be found on the manufacturer's official website or on the product packaging.

Please have your product model number (SUBBLSM2AM) and purchase information ready when contacting support.