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Alpine Plug & Play 5-Channel Amplifier & Down-fire Subwoofer Kit | '10 - '24 4Runner

Alpine Plug & Play 5-Channel Amplifier & Down-fire Subwoofer Kit | '10 - '24 4Runner

Regular price $1,160.00
Regular price $1,290.00 Sale price $1,160.00
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Upgrade your 2010–2024 4Runner with Alpine’s 5-channel amp & 10" or 12" down-fire sub kit. Plug-and-play design for big bass, clean power, and easy install. Compatible w/ factory or aftermarket radios! Not compatible with JBL amplified 4Runners.
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Alpine 5-Channel Amplifier & Down-Fire Subwoofer Kit | 2010–2024 Toyota 4Runner
Big bass. Clean power. Seamless install.

Works with your non-amplified 2010 - 2024 factory radio or aftermarket radio! 

Take your 4Runner’s audio system to the next level with our Alpine 5-Channel Amplifier & Down-Fire Subwoofer Kit, designed specifically for 2010–2024 Toyota 4Runners. Whether you choose the (optional) 10-inch or 12-inch Alpine down-fire subwoofer, this kit delivers deep, punchy bass and clean, balanced sound across all frequencies—transforming your factory system into an experience worth hearing.

Alpine Subwoofer Dimensions:

  • Alpine 10" Shallow Subwoofer (SS-SB10): 18.5" (w) x 4.5" (h) x 12.5" (d)
  • Alpine 12" Shallow Subwoofer (SS-SB12): 22.5" (w) x 5.25" (h) x 13.125" (d) 

Designed for a Seamless Upgrade
This kit is only compatible with non-amplified 4Runner models (not compatible with JBL). Each component is carefully selected to ensure a plug-and-play installation—no splicing, no guesswork.

What’s Included:

  • Alpine S2-A55V 5-Channel Amplifier – Power your entire system with precision and clarity.
  • Choice of 10" or 12" Alpine Down-Fire Subwoofer – Deep bass with a low-profile design that tucks neatly away.
  • AudX 4Runner Amplifier Mounting Bracket – Custom-fit bracket for a clean, factory-like installation.
  • AudX T-Harness – Plug-and-play integration for a no-cut install.
  • AudX Plug & Play Main Harness – Simplifies your install for faster setup.
  • RCA Adapters – Ensures proper signal flow for your amplifier.
  • Trail Grid Pro Amplifier Install Kit – All wiring and hardware needed for a secure connection.
  • 10 Zip Ties – For a clean, professional cable management.
  • 10mm Ground Bolt – Ensures a solid, reliable ground connection.

Why Choose This Kit?

  • Engineered for 4Runners: Every component is tailored for perfect fitment.
  • All-in-One Solution: No extra parts or tools needed—everything is in the box.
  • Plug-and-Play Simplicity: Get upgraded sound without the hassle of custom wiring.

Alpine S2-A55V — 5-Channel Amplifier

Key Features:

  • Hi-Res Audio Certified (up to 40 kHz on four channels)
  • Compact Class D design with efficient power delivery
  • Five channels: four full-range + one dedicated subwoofer channel
  • Adjustable crossovers and variable bass boost
  • Compatible with optional remote bass controls (RUX-KNOB.2 / RUX-H01)
  • Side-mounted controls and dual-sided terminals for easier installs
  • Works seamlessly with factory or aftermarket audio systems

Specs:

  • Dimensions: 11.9″ W × 2.25″ H × 8.25″ D
  • Weight: ~7 lbs
  • Operating Voltage: 14.4 V
  • Total Harmonic Distortion: <0.1%
  • RMS Power Output:
    • 40W × 4 + 200W × 1 @ 4 Ω
    • 60W × 4 + 300W × 1 @ 2 Ω
  • Bridged Output: 120W × 2 @ 4 Ω
  • Signal-to-Noise Ratio: >83 dB
  • Frequency Response: 20 Hz – 40 kHz (main channels)
  • Damping Factor: >100
  • Inputs: RCA and speaker-level inputs
  • Fuses: Dual 30A

Alpine SS-SB10 10" Down-Fire Subwoofer

Key Features:

  • Preloaded 10” S-Shallow Subwoofer  
  • Optimal Sealed Cabinet Quality
  • Neodymium Magnet  
  • Front-Mounted Neodymium Motor  
  • Alpine Gen2 DD Linear Magnetic Circuit
  • Rugged Polymer Enclosure Cabinet
  • Adjustable, Foam-padded Mounting Brackets for Flexible Installation & Reduced Vibration 

Specs:

  • Dimensions: 18.5” (W) x 4.5” (H) x 12.5” (D)
  • Power Handling: 300W RMS
  • Frequency Response: 35Hz-200Hz
  • X-Max: 11mm 1-Way Linear
  • Nominal Impedance: 2Ω
  • Copper Voice Coil: 2” (50.0mm)  
  • Single 2 Ohm Voice Coil for a 2 Ohm load (compatible with S2-A55V, KTA-200M, or KTA-30MW Amplifiers) 

Alpine SS-SB12 12" Down-Fire Subwoofer

Key Features:

  • Optimal Sealed Cabinet Quality
  • Preloaded 12” S-Shallow Subwoofer  
  • Neodymium Magnet  
  • Front-Mounted Neodymium Motor  
  • Alpine Gen2 DD Linear Magnetic Circuit
  • Rugged Polymer Enclosure Cabinet
  • Adjustable, Foam-padded Mounting Brackets for Flexible Installation & Reduced Vibration

Specs:

  • Dimensions: 22.25” (W) x 5.25” (H) x 13.125” (D)
  • Power Handling: 300W RMS
  • Frequency Response: 30Hz-200Hz
  • X-Max:11mm 1-Way Linear
  • Nominal Impedance: 2Ω
  • Copper Voice Coil: 2” (50.0mm)  
  • Single 2 Ohm Voice Coil for a 2 Ohm load (compatible with S2-A55V, KTA-200M, or KTA-30MW Amplifiers) 

Upgrade your 4Runner’s sound system today and hear your music the way it was meant to be heard.

Alpine S2-A55V — 5-Channel Amplifier

  • Dimensions: 11.9″ W × 2.25″ H × 8.25″ D
  • Weight: ~7 lbs
  • Operating Voltage: 14.4 V
  • Total Harmonic Distortion: <0.1%
  • RMS Power Output:

    40W × 4 + 200W × 1 @ 4 Ω

    60W × 4 + 300W × 1 @ 2 Ω
  • Bridged Output: 120W × 2 @ 4 Ω
  • Signal-to-Noise Ratio: >83 dB
  • Frequency Response: 20 Hz – 40 kHz (main channels)
  • Damping Factor: >100
  • Inputs: RCA and speaker-level inputs
  • Fuses: Dual 30A

Alpine SS-SB10 10" Down-Fire Subwoofer

  • Dimensions: 18.5” (W) x 4.5” (H) x 12.5” (D)
  • Power Handling: 300W RMS
  • Frequency Response: 35Hz-200Hz
  • X-Max: 11mm 1-Way Linear
  • Nominal Impedance: 2Ω
  • Copper Voice Coil: 2” (50.0mm)  
  • Single 2 Ohm Voice Coil for a 2 Ohm load (compatible with S2-A55V, KTA-200M, or KTA-30MW Amplifiers) 

Alpine SS-SB12 12" Down-Fire Subwoofer

  • Dimensions: 22.25” (W) x 5.25” (H) x 13.125” (D)
  • Power Handling: 300W RMS
  • Frequency Response: 30Hz-200Hz
  • X-Max:11mm 1-Way Linear
  • Nominal Impedance: 2Ω
  • Copper Voice Coil: 2” (50.0mm)  
  • Single 2 Ohm Voice Coil for a 2 Ohm load (compatible with S2-A55V, KTA-200M, or KTA-30MW Amplifiers) 

Alpine S2-A55V — 5-Channel Amplifier

  • Hi-Res Audio Certified (up to 40 kHz on four channels)
  • Compact Class D design with efficient power delivery
  • Five channels: four full-range + one dedicated subwoofer channel
  • Adjustable crossovers and variable bass boost
  • Compatible with optional remote bass controls (RUX-KNOB.2 / RUX-H01)
  • Side-mounted controls and dual-sided terminals for easier installs
  • Works seamlessly with factory or aftermarket audio systems

Alpine SS-SB10 10" Down-Fire Subwoofer

  • Preloaded 10” S-Shallow Subwoofer  
  • Optimal Sealed Cabinet Quality
  • Neodymium Magnet  
  • Front-Mounted Neodymium Motor  
  • Alpine Gen2 DD Linear Magnetic Circuit
  • Rugged Polymer Enclosure Cabinet
  • Adjustable, Foam-padded Mounting Brackets for Flexible Installation & Reduced Vibration 

Alpine SS-SB12 12" Down-Fire Subwoofer

  • Optimal Sealed Cabinet Quality
  • Preloaded 12” S-Shallow Subwoofer  
  • Neodymium Magnet  
  • Front-Mounted Neodymium Motor  
  • Alpine Gen2 DD Linear Magnetic Circuit
  • Rugged Polymer Enclosure Cabinet
  • Adjustable, Foam-padded Mounting Brackets for Flexible Installation & Reduced Vibration

What's Included:

  • Alpine S2-A55V 5-Channel Amplifier – Power your entire system with precision and clarity.
  • Choice of 10" or 12" Alpine Down-Fire Subwoofer – Deep bass with a low-profile design that tucks neatly away.
  • AudX 4Runner Amplifier Mounting Bracket – Custom-fit bracket for a clean, factory-like installation.
  • AudX T-Harness – Plug-and-play integration for a no-cut install.
  • AudX Plug & Play Main Harness – Simplifies your install for faster setup.
  • RCA Adapters – Ensures proper signal flow for your amplifier.
  • Trail Grid Pro Amplifier Install Kit – All wiring and hardware needed for a secure connection.
  • 10 Zip Ties – For a clean, professional cable management.
  • 10mm Ground Bolt – Ensures a solid, reliable ground connection.