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SUBPULSIX

12" 1600W Powered Spare Tire Subwoofer with Built-in Amplifier, Hidden Anti-Theft Design, Deep Bass, Easy Plug-and-Play Installation, Perfect for Car Audio Upgrade

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$149.99 Why this price?
Holiday Deal · 81% off was $799.99

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This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2026

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Availability: Only 10 left in stock, order soon!
Fulfilled by Amazon
Arrives Sunday, Dec 28
Order within 2 hours and 46 minutes
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Features

  • Hidden Spare Tire Subwoofer DesignMounts directly inside your vehicles spare tire well for a stealthy, factory-installed look. Saves trunk space and stays completely concealed, helping deter theft while delivering powerful bass performance. Compatible with most 15"/16"/17" full-size spare tires.
  • Upgraded 1600W Peak Power PerformanceExperience next-level car audio with 1600W max output and 400W RMS continuous power. The 12-inch high-excursion subwoofer reproduces ultra-deep bass with less than 1% total harmonic distortion, while a >91dB signal-to-noise ratio ensures crystal-clear sound quality.
  • Built-In Class D Amplifier with Adjustable ControlsFeatures a high-efficiency PWM MOSFET amplifier with low pass filter (50Hz150Hz), 012dB bass boost at 45Hz, and subsonic filter at 20Hz. Fine-tune your sound with a 0/180 phase switch and achieve customized bass response in any vehicle setup.
  • Easy Plug-and-Play InstallationIncludes complete wiring kit with power, ground, RCA, and high-level input options for fast, versatile connection. A 20-foot wired remote control lets you adjust gain, crossover, and bass boost conveniently from the drivers seat.
  • Durable and Space-Saving ConstructionEngineered with a cast aluminum enclosure for long-lasting durability. Its shallow-mount design fits discreetly in your spare tire well, ensuring reliable, vibration-free performance without sacrificing cargo space.
  • UPWINGSPIRAL Support PromiseYour satisfaction is our priority. Please review the user manual before installation. For any issues, our 24/7 customer support is ready to assist you. All UPWINGSPIRAL subwoofers include a 1-year replacement warranty.

Brand: SUBPULSIX


Speaker Maximum Output Power: 1600 Watts


Frequency Response: 20 Hz


Connectivity Technology: RCA


Mounting Type: Car


Model Name: SUB-BT01-1600W


Speaker Type: Subwoofer


Special Feature: Bass Boost


Recommended Uses For Product: For Surround Sound Systems


Unit Count: 1.0 Count


Included Components: subwoofer, wiring kit, remote, mounting hardware


Product Dimensions: 15"D x 10"W x 5"H


Style: 1600W-A


Manufacturer: SUBPULSIX


Item Weight: 17.07 pounds


Item model number: Spare Tire Subwoofer


Date First Available: October 16, 2025


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Dec 28

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • High quality
Review Image by Makayla kuykendall Makayla kuykendall
Solid upgrade. The build feels durable, and the bass is way clearer than the cheap underseat sub I used before. I like being able to tweak the bass level depending on the song — the remote makes that easy. It fits snug in the spare tire spot, and you’d never know there’s a sub back there.
Reviewed in the United States on December 10, 2025 by Makayla kuykendall Makayla kuykendall
    • Great value for money
Review Image by aisha aisha
If you want better bass without messing with a big box in the trunk, this is perfect. It hits hard enough for hip-hop and EDM, but still sounds clean. Install only took me about 20 minutes. Once it was in, everything looked stock and out of the way. Definitely worth it.
Reviewed in the United States on December 10, 2025 by aisha aisha
    • Perfect upgrade
Review Image by Amazon Customer Amazon Customer
This sub surprised me in the best way. It adds a ton of low-end without rattling everything. The install was basically plug-and-play, which I appreciated because I'm not an audio expert. Once it powered on, the difference in sound was huge. Love that it stays hidden and doesn’t take up space.
Reviewed in the United States on December 10, 2025 by Amazon Customer Amazon Customer

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