Alpine S2-S50 Next-Generation S-Series 5.25" Coaxial Speaker Set Instruction Manual

1. Introduction

This manual provides essential information for the proper installation, operation, and maintenance of your Alpine S2-S50 Next-Generation S-Series 5.25" Coaxial Speaker Set. Please read this manual thoroughly before use to ensure optimal performance and longevity of your speakers.

The S2-S50 speakers are designed to deliver high-resolution audio with a frequency response up to 40kHz. They feature a lightweight construction using Poly Propylene, Glass Fiber, and Mica Cone materials for high output and low distortion. The Alpine-exclusive High Amplitude Multi-Roll (HAMR) surround technology allows for maximum cone movement, contributing to powerful and accurate bass reproduction.

2. Package Contents

Verify that all items are present in the package:

• Alpine S2-S50 5.25" Coaxial Speakers (Pair)
• Mounting Screws
• Speaker Wires (may vary by package, typically not included with speakers only)
• Instruction Manual (this document)

Note: The KTE-S50G Speaker Grille is sold separately and is not included in this package.

3. Safety Precautions

• Always disconnect the vehicle's battery negative terminal before starting any electrical work.
• Ensure proper wiring connections to prevent damage to the speakers or vehicle's electrical system.
• Do not expose speakers to excessive moisture or extreme temperatures.
• Avoid listening at excessively high volumes for prolonged periods to prevent hearing damage.
• Consult a professional installer if you are unsure about any installation steps.

4. Setup and Installation

Proper installation is crucial for optimal sound performance. The S2-S50 speakers are designed for car audio systems.

4.1 Tools Required

• Screwdriver set (Phillips and flathead)
• Wire strippers/crimpers
• Drill (if new mounting holes are required)
• Multimeter (for checking polarity)
• Electrical tape or heat shrink tubing

4.2 Installation Steps

1. Disconnect Battery: Disconnect the negative terminal of your vehicle's battery.
2. Remove Existing Speakers: Carefully remove the vehicle's door panels or speaker grilles to access the existing speakers. Disconnect the wiring.
3. Mounting the Speakers:

   Position the Alpine S2-S50 speakers in the desired location. Ensure a secure fit. If replacing existing speakers, use the original mounting holes if compatible. If new holes are needed, mark and drill carefully, avoiding any vehicle wiring or components.

   

   Figure 1: Front and side view of the Alpine S2-S50 coaxial speakers. Note the integrated tweeter in the center of the woofer cone.

   

   Figure 2: Side profile of the S2-S50 speaker, highlighting the HAMR surround technology and cone material.

   

   Figure 3: Angled view of the S2-S50 speaker, showing the speaker terminals for wiring connections.

4. Wiring Connections:

   Connect the speaker wires from your vehicle's audio system to the terminals on the S2-S50 speakers. Ensure correct polarity (positive to positive, negative to negative). Incorrect polarity can lead to poor sound quality and reduced bass response.

   

   Figure 4: Rear view of the S2-S50 speaker, displaying the magnet structure and wiring connection points.

5. Secure Speakers: Use the provided mounting screws to firmly secure the speakers in place.
6. Test Connections: Before reassembling panels, temporarily reconnect the battery and test the speakers to ensure they are functioning correctly.
7. Reassemble: Once confirmed, disconnect the battery again, then reassemble any removed panels or grilles. Reconnect the battery.

5. Operating Instructions

The Alpine S2-S50 speakers operate as part of your vehicle's existing audio system. No specific operational controls are present on the speakers themselves.

• Power On/Off: Controlled by your car's head unit or amplifier.
• Volume Adjustment: Adjust volume via your car's head unit.
• Audio Settings: Utilize your head unit's equalizer, balance, and fader controls to fine-tune the sound to your preference.
• Recommended Power: These speakers are rated for a maximum RMS power of 55W and a peak power of 170W. Ensure your amplifier or head unit's output matches these specifications to prevent damage.

6. Maintenance

The Alpine S2-S50 speakers require minimal maintenance to ensure long-lasting performance.

• Cleaning: Use a soft, dry cloth to gently wipe dust from the speaker cones and grilles. Avoid using harsh chemicals or abrasive cleaners.
• Inspection: Periodically check speaker connections for any signs of corrosion or looseness.
• Protection: If exposed to direct sunlight or harsh elements, consider using the optional KTE-S50G Speaker Grille (sold separately) for added protection.

7. Troubleshooting

If you encounter issues with your speakers, refer to the following common problems and solutions:

If the problem persists after attempting these solutions, contact Alpine customer support or a qualified car audio technician.

8. Specifications

Detailed technical specifications for the Alpine S2-S50 Coaxial Speaker Set:

9. Warranty and Support

The Alpine S2-S50 speakers come with a Limited Warranty. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official Alpine website.

For technical support, troubleshooting assistance, or warranty claims, please contact Alpine customer service:

• Brand: Alpine
• Website: www.alpine-usa.com/support (Example link, actual link may vary)
• Contact Information: Refer to the Alpine website for current contact numbers or email support.

Return Policy: Products purchased may be eligible for return within 30 days, subject to the retailer's return policy.