





"Fit perfectly and worked exactly as expected — support was excellent."
Alpine PSS-TSUB-T3A
Upgrade Your Vehicle With Confidence. This Is Built to Fit, Perform, and Last
Alpine PSS-TSUB-T3A Tesla Model 3 Subwoofer & Amp Upgrade Kit
Product overview:
The Alpine PSS-TSUB-T3A is a premium, plug-and-play 10-inch subwoofer and amplifier system designed exclusively for the 2017-2023 Tesla Model 3 equipped with the factory Premium Audio system. This kit provides a massive bass boost by replacing the small factory 8-inch driver with a high-excursion 10-inch Alpine subwoofer, powered by a dedicated 200W RMS mono amplifier. It’s engineered for Tesla owners who want "ludicrous" bass performance without cutting wires or sacrificing trunk space.
Features
Seamless Connectivity
The PSS-TSUB-T3A is a true plug-and-play solution. It includes Tesla-specific wiring harnesses and a pre-tuned line output converter (LOC), allowing it to integrate directly into the factory audio signal. Because it uses vehicle-specific connectors, there is no cutting or splicing of the factory harness required, which helps maintain the integrity of your Tesla’s complex electrical system while ensuring all original OEM functions remain active.
Safety & Convenience
Designed with the EV lifestyle in mind, the included Alpine KTA-200M amplifier features Dynamic Peak Power (DPP) technology. This allows the amp to double its power during musical peaks without a massive continuous draw on the battery—Alpine estimates it uses less than one mile of range even at full volume. The "stealth" enclosure fits perfectly behind the rear trunk panel, keeping your cargo area completely clear for luggage and groceries.
Enhanced Audio & Ambiance
This kit upgrades your sonic ambiance from a standard 8-inch plastic-frame sub to a professional 10-inch carbon fiber cone subwoofer. The hybrid carbon fiber material is incredibly stiff yet lightweight, delivering fast, accurate bass that doesn't "muddy" the mid-tones. Paired with Alpine’s patented H.A.M.R. (High Amplitude Multi-Roll) surround, the sub can move more air for deeper, more physical bass that you can feel throughout the cabin.
Fine Tune Your Sound
The system comes pre-tuned specifically for the Tesla Model 3’s interior acoustics, so it sounds great right out of the box. However, the enclosure is custom-shaped to minimize rattles and vibrations common with high-output bass. For those who want to "fine-tune" the experience even further, Alpine recommends adding sound damping (sold separately) to the trunk cavity to ensure every bit of the 500W peak power is translated into pure, clean low-end energy.
Full Specs:
| Category | Specification |
| General | |
| Compatibility | 2017-2023 Tesla Model 3 (Premium Audio Only) |
| Subwoofer Size | 10” Sealed Custom Enclosure |
| Power Handling | 200W RMS / 500W Peak |
| Frequency Response | 25Hz – 300Hz |
| Cone Material | Hybrid Carbon Fiber |
| Surround | Alpine H.A.M.R. (High Amplitude Multi-Roll) |
| Amplification | |
| Included Amplifier | Alpine KTA-200M Mono Power Pack |
| Technology | Dynamic Peak Power (DPP) |
| Installation | Plug-and-Play (No cutting required) |
| Warranty Information | |
| Parts/Labor Warranty | 1 Year Limited |
- Ships within 1–3 business days from our warehouse
- Tracking included with every order
- Free 30-day returns if it doesn’t work for your setup
- 2-year manufacturer warranty
- Authorized dealer guarantee
- Real installer-backed support before and after purchase

Why This Upgrade Makes Daily Driving Better
Ease of Use & Safety
Expandable by Design
FITMENT & INSTALLATION MADE SIMPLE
WHAT VEHICLES IT WORKS WITH
We verify compatibility before you buy, no guesswork.
DIY FRIENDLY IF:
- You're comfortable with basic tools
- You follow provided instructions
PROFESSIONAL INSTALL RECOMMENDED IF:
- Your vehicle requires dash kits or wiring adapters
- You want a turnkey experience
INSTALLATION CREDIT & SUPPORT:
- $75 Installation Credit when purchased online
- Speak to real installers before you buy
- Bring it into one of our locations for install
Why Buying This Here Is Safer Than Anywhere Else
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Verified Vehicle Fit
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Installer Support
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Authorized Products
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Easy Returns
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Physical stores & real installers
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FREQUENTLY ASKED QUESTIONS
FREQUENTLY ASKED QUESTIONS
How do I know this stereo or speaker will fit my car?
Select your year, make, and model using the Vehicle Fit Guide at the top of the page. You’ll only see products that are compatible with your exact vehicle setup.
What happens if I order something that doesn’t fit?
You can return or exchange it within 30 days. We’ll help you identify the correct part for your vehicle so you don’t have to guess again.
Are these products brand new and covered by warranty?
Yes — all products are brand new, authentic, and sold as an authorized dealer, which means they include a full manufacturer warranty.
Can you install this for me, or do I need to do it myself?
You can do either. Install it yourself, or use your $75 installation credit at our shop and have it professionally installed by our team.
What if I don’t know what to choose for my car?
Tell us your vehicle and what you want to improve (sound, bass, CarPlay, etc.). We’ll recommend the exact products that fit your car and your budget.
