The Ultimate 2012-2020 Tesla Model S Subwoofer Enclosure & Bass Package Buyer’s Guide
The NVX custom subwoofer platform for the 2012 to 2020 Tesla Model S is an upgrade engineered specifically for first-generation Model S sedans.
The Model S might be a luxurious, quiet, and performance-oriented sedan, its factory audio system (even the premium sound package) lacks deep, low-frequency sub-bass impact.
NVX offers three tailored options for Model S owners:
- a standalone empty enclosure (UBE-TSLAS-G1)
- a standalone loaded enclosure (BE-TSLAS-VCW104)
- or a complete plug-and-play amplified bass package (PBK-TSLAS-VCW104)
The custom enclosure fits seamlessly into the driver-side trunk corner pocket, supplying a deep, hard-hitting sub-bass without sacrificing primary cargo space, sub-floor storage, or EV driving range.
Where Is the NVX Subwoofer Enclosure Installed in Your Tesla Model S?
The NVX custom subwoofer enclosure installs directly inside the driver-side rear trunk corner recess behind the wheel arch of the Tesla Model S.
The custom enclosure features a hand-laid fiberglass rear shell that mirrors the sheet-metal contours of the Model S trunk side wall. It sits flush into the driver-side trunk well, directing sound waves inward across the cargo area.
Positioning the enclosure in the driver-side corner pocket provides two advantages:
- Zero Primary Cargo Loss: Your main trunk floor panel, rear seat folding utility, and lower sub-trunk storage cavity remain 100% open and usable for luggage, groceries, and charging gear.
- Acoustic Corner Loading: Mounting a woofer directly inside a trunk corner boundary forces sound waves to reflect off the vehicle's body panels. This corner-loading effect acts as a natural acoustic horn, boosting sub-bass volume and cabin impact without drawing additional current from the EV electrical system.
- Vehicle Fitment Note: This custom platform is engineered strictly for 2012–2020 Tesla Model S models (pre-refresh / pre-Palladium liftback platform). It drops into the driver-side trunk well without cutting, drilling, or custom panel modifications. It does NOT fit 2021+ refreshed Model S (Plaid / Long Range refresh) models due to altered trunk interior trim panels.
Is This Custom Setup Better Than Your Model S's Stock System?
Absolutely. The NVX custom subwoofer enclosure delivers up to 800W RMS of sub-bass, which is over five times the output of the factory Tesla sub. The bass generated by a proper subwoofer enclosure is going to make you feel more of your music’s emotion and impact across many music genres.
Factory Tesla sound systems rely on lightweight, low-power plastic subwoofers tuned for subtle acoustic fill rather than physical bass impact. A custom loaded subwoofer setup drastically outperforms stock audio:
- 750W to 800W RMS Power Handling vs. Weak Stock Output: While factory subwoofers distort or compress at high volumes, the full-size NVX VCW Series 10-inch driver handles 750W to 800W RMS (1500W Peak) for clean, physical low-end output.
- Full-Size High-Excursion Motor vs. Flimsy Stock Speakers: Unlike thin factory drivers, the loaded box houses an NVX VCW104v3 10-inch subwoofer featuring a 50 oz. double-stacked ferrite magnet motor and a 2.5-inch high-temperature copper voice coil built for heavy daily excursion.
- Rigid Fiberglass Shell vs. Thin Plastic Flex: Factory subwoofers rely on thin plastic housings that flex and rattle under acoustic load. The NVX BOOST box combines a dense fiberglass rear shell with a rigid 3/4-inch MDF front baffle to eliminate cabinet vibration in quiet EV cabins.
Is the NVX Subwoofer Enclosure Better Than Tesla’s Subwoofer Included in the Premium Package?
Absolutely. If you have Tesla’s premium package that includes a dedicated subwoofer, the NVX custom subwoofer enclosure is still better with its 800W of output. Tesla’s included subwoofer also rolls off at 40Hz. Meanwhile, the NVX enclosure can go deeper at 20Hz.
Comparison: Empty Enclosure vs. Loaded Enclosure vs. Complete Bass Package
Choosing the right SKU for your Tesla Model S depends on whether you already own your driver and amplifier or need a complete all-in-one installation kit:
Sound Profile & Performance
- Deep, articulate, and physical sub-bass. The full-size 10-inch VCW driver in a sealed fiberglass enclosure produces fast, punchy kick drums and low-frequency rumble down to 20 Hz, seamlessly filling the spacious Model S cabin without boomy distortion.
Inclusion Level Options
- Empty Enclosure (UBE Series): The UBE-TSLAS-G1 includes the custom fiberglass 10-inch sealed box with ~0.70 cu. ft. of internal volume, pre-wired terminal cup, and 3/4" MDF front baffle. Ideal if you already own a full-size 10-inch subwoofer, monoblock amp, and wiring kit.
- Loaded Enclosure (BE Series): The BE-TSLAS-VCW104 includes the custom fiberglass box pre-loaded with a high-excursion NVX VCW104v3 10-inch subwoofer pre-wired internally to a 2-ohm final mono load. Ideal if you already own a 2-ohm stable monoblock amplifier.
- Complete Bass Package (PBK Series): The PBK-TSLAS-VCW104 is the ultimate all-in-one upgrade. It includes the pre-loaded enclosure, an NVX Class-D Monoblock Amplifier (1000W RMS @ 1 ohm / ~750W RMS @ 2 ohms), an NVX XLCA2 Active Line-Output Converter (for touchscreen integration), a remote bass knob, and an NVX XKIT42 100% Pure OFC 4-Gauge Wiring Kit.
Master SKU Comparison Matrix
| In-Stock SKU Link | Configuration Type | System Power Rating | Subwoofer Included | Included Hardware & Components |
| UBE-TSLAS-G1 | Empty Enclosure | Depends on User's Woofer | None (User Supplied 10" Sub) | Custom Fiberglass Box + Terminal Cup |
| BE-TSLAS-VCW104 | Loaded Enclosure | 800W RMS / 1500W Peak | Single 10" VCW104v3 (2-Ohm Final Load) | Custom Box + Pre-Installed VCW 10" Woofer |
| PBK-TSLAS-VCW104 | Complete Bass Package | 750W–800W RMS / 1500W Peak | Single 10" VCW104v3 (2-Ohm Final Load) | Loaded Box + Monoblock Amp + XLCA2 Active LOC + 4AWG OFC Kit + Bass Remote |
UBE-TSLA-S-G1
Custom Fit Single 10" Empty BOOST Sealed Enclosure
BE-TSLAS-VCW104
Custom Fit 1000W RMS Single 10" Loaded BOOST Sealed Enclosure
PBK-TSLA-S-VCW104
Custom Single 10" 1000W RMS Amplified Subwoofer Enclosure with Line Out Converter and Wiring Kit
Power Integration, EV System Safety & Radio Integration
EV Low-Voltage Electrical System Safety
Electric vehicles do not use mechanical alternators. Instead, a DC-to-DC converter steps down power from the high-voltage traction pack to supply low-voltage accessories. Because the NVX monoblock amplifier operates on a high-efficiency Class-D circuit topology (converting over 80% of current into clean sound), its low thermal loss and steady current draw run safely within the Model S low-voltage system margins.
Factory Touchscreen Integration via Active LOC
The Tesla infotainment system lacks RCA outputs. The included NVX XLCA2 Active Line-Output Converter taps into factory speaker lines near the stock amplifier in the trunk, converting high-level signals into clean low-level RCA outputs. Integrated xBOOST technology restores lost low frequencies (20 Hz–60 Hz), allowing you to retain all MCU touchscreen controls, navigation prompts, and Bluetooth streaming without modifying Tesla software.
100% Pure OFC 4-Gauge Wiring Requirement
Sustaining a continuous 750W–800W RMS load requires running a 100% pure oxygen-free copper (OFC) 4-gauge amplifier wiring kit (such as the NVX XKIT42). Pure copper conductors ensure maximum current delivery to the amplifier without generating excess electrical resistance or heat.
Frequently Asked Questions
Will installing this subwoofer package void my Tesla warranty?
No. Under the federal Magnuson-Moss Warranty Act, aftermarket component installation cannot void a vehicle warranty unless the manufacturer proves that the specific aftermarket part directly caused a failure. Because this audio setup connects strictly to the low-voltage 12V accessory system, it remains completely isolated from the high-voltage traction battery and electric drivetrain.
Why is a sealed enclosure design better than a ported box for Tesla cabins?
Sealed enclosures deliver tight, controlled, and articulate transient response. In ultra-quiet EV cabins without engine noise to mask background audio, boomy bass from ported boxes can sound loose or uncontrolled. Additionally, sealed designs require less internal volume (~0.70 cu. ft.), allowing the cabinet to fit flush inside the trunk side pocket.