Alpine S2-A55V Amplifier and Speaker Bundle User Manual

Product Overview

This document provides detailed instructions for the installation, operation, and maintenance of your Alpine S2-A55V S-Series Class-D 5-Channel Amplifier, S2-S40C 4" Component Speaker Set, S2-S40 4" Coaxial Speaker Set, and S2-W10D4 10" Subwoofer bundle. This system is designed to enhance your vehicle's audio experience with high-resolution sound reproduction.

Alpine S2-A55V Amplifier, S2-S40C Component Speakers, S2-S40 Coaxial Speakers, and S2-W10D4 Subwoofer bundle

Image: Overview of the Alpine S2-A55V amplifier, S2-S40C component speakers, S2-S40 coaxial speakers, and S2-W10D4 subwoofer included in the bundle.

Component Details

Alpine S2-A55V 5-Channel Amplifier

The S2-A55V is a Hi-Res Audio Certified Class-D 5-channel amplifier, providing power for a full car audio system. It delivers 40W x 4 channels plus 200W x 1 channel at 4 ohms, or 60W x 4 channels plus 300W x 1 channel at 2 ohms. Features include selectable remote turn-on circuit and built-in crossovers for precise sound tuning.

Image: Top-down view of the Alpine S2-A55V 5-Channel Amplifier, showcasing its compact design.

Alpine S2-A55V Amplifier Power and Speaker Terminals

Image: Rear view of the Alpine S2-A55V amplifier, showing the power input terminals (BATT, REM, GND) and speaker output terminals (CH-1, CH-2, CH-3, CH-4, SUB).

Image: Front view of the Alpine S2-A55V amplifier's control panel, displaying RCA inputs, gain controls, filter adjustments (HP Filter, LP Filter), and bass EQ settings.

Alpine S2-S40C 4" Component Speaker Set

These 4-inch component speakers are Hi-Res Certified and feature HAMR surround technology for enhanced bass response. The set includes separate woofers and tweeters for optimal sound staging and clarity, with a peak power handling of 140W.

Image: The Alpine S2-S40C 4-inch component speaker set, showing the separate woofer and tweeter units.

Alpine S2-S40 4" Coaxial Speaker Set

The S2-S40 coaxial speakers offer an OEM fitment with integrated tweeters, providing clear and accurate audio performance. These 4-inch speakers are also Hi-Res Certified and utilize HAMR surround technology for powerful bass reproduction.

Image: A single Alpine S2-S40 4-inch coaxial speaker, showing the integrated tweeter within the woofer cone.

Alpine S2-W10D4 10" Subwoofer

This 10-inch subwoofer delivers deep, distortion-free bass with 600W RMS and 1800W peak power handling. It features a carbon fiber and polypropylene cone, a Dual Voice Coil (DVC) design, and a twist-lock grille mount system for durability and flexible installation.

Image: Angled view of the Alpine S2-W10D4 10-inch subwoofer, highlighting its cone and terminal connections.

Alpine S2-W10D4 10-inch Subwoofer Top View

Image: Top view of the Alpine S2-W10D4 10-inch subwoofer, showing the carbon fiber and polypropylene cone with the Alpine logo.

Alpine S2-W10D4 10-inch Subwoofer Bottom View

Image: Bottom view of the Alpine S2-W10D4 10-inch subwoofer, revealing the magnet structure and ventilation.

Setup and Installation

Proper installation is crucial for optimal performance and safety. It is recommended that installation be performed by a qualified professional. Always disconnect the vehicle's negative battery terminal before beginning any electrical work.

Wiring Guidelines

Power Connection: Connect the amplifier's BATT terminal to the vehicle's positive battery terminal using an appropriate gauge power cable with an inline fuse (not included).
Ground Connection: Connect the amplifier's GND terminal to a clean, unpainted metal surface on the vehicle chassis. Ensure a solid, low-resistance connection.
Remote Turn-On: Connect the amplifier's REM terminal to the remote output of your head unit. This signal turns the amplifier on and off with your vehicle's audio system.
RCA Input: Connect the RCA outputs from your head unit to the corresponding RCA inputs on the S2-A55V amplifier (CH-1/2, CH-3/4, SUB).
Speaker Wiring:
- Connect the S2-S40C component speakers to channels 1 and 2 of the amplifier. Ensure correct polarity (+ to + and - to -).
- Connect the S2-S40 coaxial speakers to channels 3 and 4 of the amplifier.
- Connect the S2-W10D4 subwoofer to the SUB channel of the amplifier. For dual voice coil subwoofers, refer to the subwoofer's specific wiring configurations (series or parallel) to match the amplifier's impedance requirements.

Mounting Considerations

Mount the amplifier in a location that allows for adequate ventilation and is protected from moisture and direct sunlight.
Ensure speakers are securely mounted in their designated locations (e.g., door panels, dash) to prevent vibration and ensure optimal sound projection.
The subwoofer should be installed in an appropriate enclosure (sealed or ported, depending on desired sound characteristics) within the vehicle's trunk or cargo area.

Operating Instructions

Once installed, proper adjustment of the amplifier settings is essential for achieving the best sound quality from your Alpine system.

Amplifier Adjustments (S2-A55V)

Gain Control: Adjust the gain controls for each channel (CH-1/2, CH-3/4, SUB) to match the output voltage of your head unit. Start with the gain at minimum and slowly increase until distortion is audible, then back off slightly.
HP Filter (High-Pass Filter): For the component and coaxial speakers (CH-1/2, CH-3/4), set the HP filter to prevent low frequencies from reaching them, improving clarity and preventing damage. A common starting point is 80-100 Hz.
LP Filter (Low-Pass Filter): For the subwoofer channel (SUB), set the LP filter to allow only low frequencies to pass through. A common starting point is 80-100 Hz, ideally overlapping with the HP filter setting of your main speakers.
Bass EQ: Use the Bass EQ control on the subwoofer channel to fine-tune the bass response to your preference. Use sparingly to avoid distortion.
Turn-On Type: Select the appropriate turn-on type (DC REM or REM) based on your head unit's remote output signal.

System Tuning

After initial setup, play various types of music to fine-tune the system. Adjust gain, crossover frequencies, and bass EQ settings incrementally to achieve a balanced and clear sound across all frequencies. Listen for clarity, bass impact, and overall sound stage.

Maintenance

Regular maintenance ensures the longevity and optimal performance of your Alpine audio system.

Cleaning: Use a soft, dry cloth to wipe down the amplifier and speaker surfaces. Avoid abrasive cleaners or solvents.
Ventilation: Ensure the amplifier's cooling fins are free from dust and debris to prevent overheating. Do not block ventilation openings.
Connections: Periodically check all wiring connections for tightness and corrosion. Loose connections can lead to poor performance or damage.
Environment: Protect the components from extreme temperatures, moisture, and direct sunlight.

Troubleshooting

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

Problem	Possible Cause	Solution
No sound from any speaker	Amplifier not powered on (no indicator light) Blown fuse Loose power or ground connection No remote turn-on signal RCA cables disconnected or faulty	Check power, ground, and remote connections. Inspect and replace amplifier or vehicle fuses. Ensure head unit is on and remote wire is connected. Verify RCA cable connections and integrity.
Distorted sound	Gain set too high Improper crossover settings Speaker impedance mismatch Damaged speaker or amplifier	Reduce amplifier gain settings. Adjust HP/LP filter settings. Verify speaker wiring and impedance. Inspect components for physical damage.
One or more speakers not working	Loose speaker wire connection Damaged speaker Amplifier channel fault	Check speaker wire connections at both amplifier and speaker ends. Test speaker with another known good source. Consult a professional if amplifier channel is suspected faulty.
Amplifier goes into protection mode (light changes color or turns off)	Overheating (lack of ventilation) Speaker impedance too low Short circuit in speaker wiring Power supply issue	Ensure adequate ventilation around amplifier. Verify speaker impedance matches amplifier's capabilities. Check all speaker wires for shorts (e.g., bare wire touching chassis). Confirm stable power and ground connections.

Specifications

Feature	Detail
Product Bundle Model Name	Alpinebdl241209-08
UPC	840425850855
Item Weight	28.7 Pounds
Package Dimensions	15 x 12.5 x 12.5 inches
Manufacturer	Alpine
Date First Available	December 11, 2024

Alpine S2-A55V Amplifier Specifications

Channels: 5-Channel (4 + 1 Subwoofer)
Power Output (4Ω): 40W RMS x 4 + 200W RMS x 1
Power Output (2Ω): 60W RMS x 4 + 300W RMS x 1
Certification: Hi-Res Audio Certified
Frequency Response: Up to 40kHz
Features: Selectable remote turn-on circuit, Built-in crossovers (HP/LP filters), Bass EQ

Alpine S2-S40C 4" Component Speaker Specifications

Speaker Type: Component
Size: 4 inches
Peak Power: 140W
Technology: HAMR Surround
Certification: Hi-Res Certified

Alpine S2-S40 4" Coaxial Speaker Specifications

Speaker Type: Coaxial
Size: 4 inches
Fitment: OEM
Technology: HAMR Surround
Certification: Hi-Res Certified

Alpine S2-W10D4 10" Subwoofer Specifications

Size: 10 inches
RMS Power: 600W
Peak Power: 1800W
Cone Material: Carbon fiber and polypropylene
Voice Coil: Dual Voice Coil (DVC)
Mounting: Twist-lock grille mount system

Warranty Information

Alpine products are manufactured to high-quality standards and are backed by a limited warranty. For specific warranty terms, conditions, and duration, please refer to the warranty card included with your product or visit the official Alpine website. Keep your proof of purchase for warranty claims.

Support and Contact

For technical assistance, troubleshooting beyond this manual, or service inquiries, please contact Alpine customer support. You can find contact information and additional resources on the official Alpine website.

Visit the Alpine Store on Amazon for more information and products.

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Alpine Alpinebdl241209-08