Infinity Alpha 650C

Infinity Alpha 650C 6.5-inch Two-Way Component Car Speaker User Manual

Model: Alpha 650C | Brand: Infinity

1. Introduction

Thank you for choosing the Infinity Alpha 650C 6.5-inch Two-Way Component Car Speaker. This manual provides essential information for proper installation, operation, and maintenance of your new car audio system. Please read this manual thoroughly before attempting installation or operation to ensure optimal performance and safety.

2. Safety Information

  • Professional installation is highly recommended for optimal performance and to prevent damage to your vehicle or the speakers.
  • Always disconnect the vehicle's battery before beginning any electrical work.
  • Ensure all wiring is properly insulated and secured to prevent short circuits and damage.
  • Avoid exposing speakers to excessive moisture or extreme temperatures.
  • Do not operate the speakers at excessively high volumes for prolonged periods, as this may cause hearing damage or speaker damage.

3. Package Contents

The Infinity Alpha 650C package includes the following components:

  • 2 x 6.5-inch Component Speakers (Woofers)
  • 2 x Tweeters
  • 2 x Crossovers
  • Mounting brackets and screws
  • Speaker grilles
  • Foam rings for sound isolation
Infinity Alpha 650C component speaker system laid out
Figure 3.1: All components of the Infinity Alpha 650C speaker system, including woofers, tweeters, and crossovers.

4. Setup and Installation

Proper installation is crucial for achieving the best sound quality. It is recommended to have this system installed by a qualified car audio professional.

4.1. Component Overview

Infinity Alpha 650C woofers, tweeters, and crossovers
Figure 4.1: The main components of the speaker system, including the 6.5-inch woofers, separate tweeters, and passive crossovers.

4.2. Wiring Connections

Connect the woofers, tweeters, and crossovers according to the wiring diagram provided in the full installation guide (typically included with the product). Ensure correct polarity for all connections. The crossovers manage the frequency distribution between the woofer and tweeter for optimal sound reproduction.

Close-up of Infinity Alpha 650C crossovers and tweeters
Figure 4.2: A detailed view of the passive crossovers and tweeters, showing connection terminals for proper wiring.

4.3. Mounting

The 6.5-inch woofers are designed for car door or panel mounting. Use the provided brackets and screws for secure installation. Tweeters can be flush-mounted or surface-mounted using the included accessories, depending on your vehicle's interior and desired sound staging.

4.4. Sound Isolation

Utilize the included foam rings around the woofers to minimize unwanted vibrations and improve sound quality by creating a better seal between the speaker and the mounting surface.

4.5. Product Overview Video

Video 4.1: A brief product overview demonstrating the components and features of a similar car audio component speaker system. This video provides a visual guide to the type of components you will be installing.

5. Operating Instructions

Once installed, connect your car audio system to a compatible head unit or amplifier. The Infinity Alpha 650C speakers are designed to deliver clear and dynamic audio. Adjust audio settings such as bass, treble, balance, and fader on your head unit or amplifier to achieve your preferred sound profile. The speakers are capable of handling up to 315W peak power and 45W RMS power, ensuring robust performance.

6. Maintenance

To ensure the longevity and optimal performance of your Infinity Alpha 650C speakers, follow these maintenance guidelines:

  • Keep the speakers free from dust and debris. Use a soft, dry cloth to gently wipe down the speaker grilles and surrounds.
  • Avoid using harsh chemicals, abrasive cleaners, or excessive moisture, as these can damage the speaker components.
  • Periodically check all wiring connections to ensure they remain secure and free from corrosion.
  • If the speakers are exposed to water or extreme conditions, allow them to dry completely before use.

7. Troubleshooting

If you encounter any issues with your Infinity Alpha 650C speakers, refer to the following common troubleshooting steps:

7.1. No Sound

  • Check all wiring connections from the head unit/amplifier to the crossovers, and from the crossovers to the woofers and tweeters. Ensure all connections are secure and have correct polarity.
  • Verify that your amplifier or head unit is powered on and functioning correctly.
  • Ensure the audio source is playing and the volume is turned up.

7.2. Distorted Sound

  • Reduce the volume level on your head unit or amplifier. Over-driving the speakers can cause distortion.
  • Check the gain settings on your amplifier. Incorrect gain settings can lead to distortion.
  • Ensure the speakers are securely mounted. Loose mounting can cause vibrations and rattling.
  • Verify that the speaker wires are not pinched or damaged, which can cause signal interference.

7.3. Weak Bass

  • Ensure the woofers are properly sealed in their enclosures. Use the provided foam rings to create a tight seal.
  • Check the wiring to the woofers for correct polarity. Incorrect polarity can cause bass cancellation.
  • Adjust the bass settings on your head unit or amplifier.

8. Specifications

FeatureSpecification
Speaker Type6.5-inch Two-Way Component
RMS Power Handling45W
Peak Power Handling315W
Impedance4 Ohms
Sensitivity (@2.83V)91dB
Frequency Response53Hz - 20kHz
Woofer Diameter6.5 Inches
Tweeter Diameter1 Inch
Woofer Cone MaterialPolypropylene
Mounting TypeCar Mount
Product Dimensions5"D x 16"W x 5"H
Item Weight4.17 pounds

9. Warranty and Support

The Infinity Alpha 650C speakers come with a limited warranty. For specific warranty details, terms, and conditions, please refer to the warranty card or documentation included in your product packaging. For technical support, product registration, or further assistance, please visit the official Infinity website or contact their customer service department.

You can find more information and support at the Infinity Store.

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