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NVX Tesla Model S BOOST Sub Box BE-TSLAS-VCW104 (B.O.O.S.T.)

Vehicle Specific, Optimized and Tuned Loaded Subwoofer Enclosure for Tesla Model S

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NVX Tesla Model S BOOST Sub Box BE-TSLAS-VCW104 (B.O.O.S.T.)

Vehicle Specific, Optimized and Tuned Loaded Subwoofer Enclosure for Tesla Model S


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Subwoofer Features:

  • Custom designed bass enclosure for 2012 and up Tesla Model S vehicles
  • Hand-laid fiberglass shell
  • Installs quickly and easily into the storage cubby on the left side of the trunk
  • 10" Dual 4 Ohm VC Series Subwoofer
  • Power Handling:
    • RMS Power Range: 600-750 watts
  • Impedance: Dual 4 ohms
  • Pressed paper cone with woven fiber top
  • Woofer surround type
  • Custom high roll foam surround with nylon stitching
  • 2.5" high temperature aluminum voice coil
  • 127oz. triple stacked ferite magnet motor structure with protective rubber boot
  • Frequency response: 20-220 Hz
  • Sensitivity: 83dB
  • Complete amplified bass system package available here
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Installation Instructions

Check out our B.O.O.S.T. Install Guide for step-by-step installation instructions
  • Professional Installation Recommended

Subwoofer Specifications

Subwoofer Design
This is the design of the subwoofer or the opening of the subwoofer enclosure. Each design has it's own benefits, whether it is a square, circle, or oval.

Round/Circle: This is the typical and common subwoofer design. They have a round cone and are a circle in design.

Square: These woofers are able to achieve a greater cone area in a smaller space. Because of the greater surface area, some square subwoofers will be louder than a round subwoofer of the same size.

Round / Circle
Voice Coil(s)
Dual voice coil subs have more wiring flexibility than single voice coils subs; however, single voice coil subwoofers provide easier hookup options for wiring multiple subwoofers in parallel or series. You may also run a dual voice coil (DVC) sub in parallel, series, or combination. A quad voice coil has four voice coils and is equal to two dual voice coil subwoofers as far as wiring goes.
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
4 ohms
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
750 watts
Total RMS Power Handling
This is the total RMS power handling of all the subwoofers included in the package or enclosure.

If the loaded enclosure or amplifier and subwoofer package includes more than a single subwoofer, then this is the total RMS power handling for all of the subs combined.

The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend giving your subwoofer(s) 75% - 90% of the recommended RMS rating.
750 watts
Woofer Surround
A speakers surround is part of the suspension system. The surround protects the cone and prevents it from being displaced as it flexes out from the basket. It is usually made of a durable material like treated foam or rubber in order to withstand the strenuous job of producing bass frequencies.
Woofer Composition
Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
83 dB
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
20 - 220 Hz
Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.

Enclosure Specifications

Compatible Vehicle Make and Model
The model of vehicle that this vehicle specific product is designed for. Please keep in mind that engine variations can affect the compatibility of the products.
Tesla Model S
Number of Subs/Speakers
This value represents the number of speakers or subwoofers that the enclosure accommodates.
Box Style/Shape
The box style or shape refers to the actual shape of the box. Square and rectangular boxes are straight-edged boxes on all sides, whereas hatchback and truck style enclosures feature an angled front or back design that allows for installation in places short on depth such as single cab pickup trucks. You can also use such enclosures in hatchback cars or other vehicles where space is a premium. Tube and cylinder shaped boxes were made popular by Bazooka and are a great option for those looking for a nice amount of bass without sacrificing lots of space. They may even fit in locations that slim truck boxes cannot fit in. If the enclosure is vehicle specific, we encourage you to read the product description to find out which vehicles the enclosure is made for.
Vehicle Specific
Cutout Diameter or Length
The actual diameter of the hole in the subwoofer box. Length is the measured length per side of a square subwoofer or speaker opening.
Number of Terminals
The number of terminals the enclosure has. Each terminal represents 1 positive and 1 negative.
Terminal Type
Spring clip terminals work best with bare wire connections with small-gauge speaker wire, or pin-type connectors.

Binding post terminals are a sturdier, more versatile type of speaker terminal. Because binding post terminals are are threaded, you can tighten them down against the wire or connector for a tight, clean connection. The most popular style of binding post terminals is known as a "5-way binding post". This type can accept bare wire, or any of the common speaker wire connectors. Binding posts with the option to be used with banana clips are even more versatile

Spring posts are a hybrid of the two. Instead of using a thread and "screwing" them tight, they use a spring to allow the wire to fit and tighten against the terminal.

Spring posts
Box Exterior Color
The color of the enclosure's exterior/outer finish.
Box Finish
The material used on the outside of the box. Most boxes are carpeted to prevent exterior scratches; however vinyl is popular as it can often be color-matched to a near exact look of your leather factory interior.
Final Wired Impedance
This is the final impedance of the system as the amplifier will see it. If the final impedance is for two sets, it means that the enclosure has two sets of terminals at the listed impedance.
2 ohms
Type of Enclosure
Some of our Vehicle Specific enclosures are loaded with a subwoofer and an amplifier, some are only loaded with a subwoofer, while some are empty boxes.
Box Type
Represents the style of the enclosure. Be sure to purchase the appropriate enclosure type and internal volume that will be compatible with your subwoofer's recommendation.

Sealed - Sealed boxes are those that have no holes or vents in it. The only hole in a sealed box is where the subwoofer is installed. Smaller sealed boxes require more power than a larger sealed box. They provide a tight, accurate bass, while the larger sealed enclosures provide a "boomier" and louder bass.

Ported / Vented - Ported/Vented Enclosures provide an even boomier, louder bass, but less accurate then a small, sealed box. Ported enclosures typically require more airspace per sub and also less power output from an amplifier to perform correctly.

Bandpass - Bandpass enclosures make subwoofers perform efficiently, but loose. The bass is not as "boomy" as a ported enclosure nor as punchy as a sealed enclosure. Bandpass enclosures work well with lower to mid-level subwoofers.

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating


Valencia, California

Best subwoofer solution for Tesla for sure.

August 4, 2014

OK so I am the guinea pig for this box and I could not have been happier with the work that Allyn and Sonic Electronix did for me. The bass is clean, tight and low and it's all without sacrificing a ton of space. Worth every penny as a fiberglass box alone is typically $500-$1000 plus install. I don't know if it is a DIY type of install because I am not that confident taking my car apart.

Way better bass response compared to factory sub which was lacking on the low end.
Bass remote is great to turn it down when kids are in the back or wife in the car
No loss of storage space
Looks stylish and blends in with interior
Balances with my mids and highs -- I have the premium Tesla audio system

No grill option just yet so you have to be careful. NVX said they are coming out with a grill.

22 of 26 found this helpful

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Plantation FL

Adds Punch

August 25, 2015

Fit and finish are excellent 10 out of 10
Sound adds massive amounts of bass to just about ant track you throw at it.
That said this is not a tuned box so it takes some playing with the gain and cutoff points to bring out the best in the sub.

Listening to it after the install and it sounded detached and muddy but playing around with different settings I have got it sounding much better.

7 of 9 found this helpful

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Browse 1 question and 1 answer
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My TMS already has the factory upgraded stereo option. I wonder if this sub is an "add-on" or a "replacement" to the factory 8" sub? How about wiring? Does the factory unit have enough power to drive this sub or an additional amp is required? Please advise thanks.
A shopper on Nov 7, 2014
Best Answer: Hi Shopper,

The NVX BE-TSLAS-VCW104 was designed to replace the factory woofer. This will need a separate amp to power the VCW104 woofer.

Reply · Report · Brian MStaff on Nov 18, 2014
· Add Answer · I Have This Question Too (1)

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Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: NVX Tesla Model S BOOST Sub Box BE-TSLAS-VCW104 (B.O.O.S.T.)