The Ultimate 2016-2020 Hyundai Elantra Subwoofer Enclosure & Bass Package Buyer’s Guide
The NVX custom subwoofer platform for 2016 to 2020 Hyundai Elantra sedans (6th Generation / AD Platform) delivers a dedicated low-frequency audio upgrade engineered specifically for modern compact sedans.
Hyundai Elantras generally have subpar factory sound systems. The bass in particular tends to lack impact, sounding flat, hollow, and devoid of low-end depth. This is true even for their models equipped with optional premium audio.
Luckily, NVX offers two targeted sub-bass solutions to give you and your passengers an immersive and full-sounding bass. You can choose between:
- a standalone 500W RMS loaded enclosure (BE-HYDELA-G6)
- and a complete plug-and-play amplified bass package (PBK-HYDELA-G6).
Tucking seamlessly into the rear trunk corner storage recess, this platform supplies up to 500W RMS of articulate, physical sub-bass without sacrificing primary trunk space, folding rear seat utility, or spare tire access.
Where Is the NVX Subwoofer Enclosure Installed in Your Hyundai Elantra?
The NVX custom subwoofer enclosure is installed directly inside the rear trunk side corner pocket of the 6th-Gen Hyundai Elantra.
Hand-crafted with a dense fiberglass rear shell molded precisely to mirror the inner sheet-metal contours of the Elantra's trunk cavity, the cabinet drops flush into the side well, directing low-frequency energy across the cargo area into the passenger cabin.
Mounting the enclosure inside the trunk corner pocket provides three major operational benefits:
- Zero Main Floor Loss: Your central trunk floorboard, cargo tie-down points, and 60/40 split-folding rear seat pass-through remain 100% open and usable for luggage, groceries, and travel gear.
- Uninhibited Spare Tire Access: The box sits inside the side well above the lower floor seam, allowing you to lift the lower trunk mat to reach your spare tire or inflation kit without unbolting the cabinet.
- Acoustic Corner Loading: Placing the woofer against rigid trunk corner boundaries forces sound waves to reflect off metal body panels, naturally boosting output volume and sub-bass efficiency without drawing extra amplifier power.
Important Vehicle Fitment Note: This custom enclosure platform is designed strictly for 2016–2020 Hyundai Elantra Sedan (6th Gen AD Platform) models. It will NOT fit Elantra GT (hatchback), Elantra Coupe, or 2021+ (7th Gen) Elantra models due to completely different trunk and hatch panel dimensions.
Why NVX Outperforms Other Brands in Value
NVX makes precision-molded fiberglass enclosures available directly to compact sedan owners. This eliminates the high expense of custom audio fabrication shops or the inconvenience of bulky square boxes sliding around the trunk.
- Fiberglass Shell vs. Resonating Plastic: Universal wedge boxes or cheap pocket enclosures frequently rely on thin plastic that flexes and rattles under heavy acoustic load. NVX BOOST enclosures unite a dense fiberglass back shell with a rigid 3/4-inch medium-density fiberboard (MDF) front baffle to eliminate box flex and preserve acoustic energy.
- 500W RMS High-Output Driver: While small powered under-seat wedges clip around 100W–150W RMS, the NVX 10-inch driver handles an honest 500W RMS (1500W Peak) for deep, chest-pounding low-end performance.
- Direct Value Engineering & OEM Integration: Wrapped in plush automotive carpet color-matched to Hyundai's original trunk lining, the box blends into the trunk for a clean factory-installed finish while avoiding heavy brand markups.
Configuration Comparison: Loaded Enclosure vs. Complete Package
Selecting the ideal option for your Elantra depends on your existing equipment and installation goals:
1. Standalone Loaded Enclosure (BE Series)
The BE-HYDELA-G6 includes the custom fiberglass box pre-loaded with an NVX 10-inch high-excursion subwoofer pre-wired internally to a 2-ohm final mono load. Handling 500W RMS / 1500W Peak, it is the best choice if you already possess an external 2-ohm stable monoblock amplifier and power wiring kit.
2. Complete Bass Package (PBK Series)
The PBK-HYDELA-G6 provides a turnkey, hassle-free bass upgrade. It removes component-matching confusion by combining perfectly paired hardware engineered to operate in total acoustic synergy:
- The pre-loaded BE-HYDELA-G6 10-inch custom corner enclosure
- An NVX Micro Class-D Monoblock Amplifier (supplying clean, efficient power @ 2 ohms)
- An NVX XLCA2X Active Line-Output Converter with xBOOST signal restoration
- A wired remote dash-mounted bass level control knob
- An NVX XKIT82 100% Pure Oxygen-Free Copper (OFC) 8-Gauge Wiring Kit
Comparison Chart
| Configuration Type | Power Rating (RMS / Peak) | Included Subwoofer | Included Hardware & Accessories |
| Loaded Enclosure | 500W RMS / 1500W Peak | Single 10" Subwoofer (2-Ohm Final Load) | Custom Fiberglass Box + Pre-Installed 10" Sub |
| Complete Bass Package | 500W RMS / 1500W Peak | Single 10" Subwoofer (2-Ohm Final Load) | Loaded Box + Micro Monoblock Amp + Active LOC + 8AWG OFC Kit + Bass Remote |
NVX BE-HYDELA-G6
2016-2020 Hyundai Elantra - Custom 500W RMS 10" Loaded Subwoofer Enclosure
NVX PBK-HYD-ELA-G6
2016-2020 Hyundai Elantra Bass Package - Custom Single 10" 500W RMS Amplified Subwoofer Enclosure with Line Out Converter and Wiring Kit
Why a Sealed Enclosure Is Ideal for Elantra Sedan Cab Acoustics
A sedan cabin forms an enclosed acoustic space where sound pressure waves travel from the trunk compartment through the rear seat area into the cabin. In this environment, ported (vented) boxes can frequently generate loose, boomy bass overhang that drowns out mid-range vocals and instrumentals.
A sealed enclosure acts as a pneumatic air spring behind the woofer cone. As the voice coil travels, internal air pressure maintains precise mechanical control over cone motion, preventing over-excursion and yielding fast, articulate transient response.
Inside a Hyundai Elantra, a sealed 10-inch enclosure outputs crisp kick drums and articulate basslines that hit hard without creating muddy acoustic overhang inside the cabin.
Power Integration, System Safety & Factory Radio Integration
Bypassing Hyundai Factory Radio Bass Roll-Off
Stock Hyundai head units incorporate internal EQ algorithms that automatically reduce low-frequency bass output as you raise the main volume knob. This factory roll-off protects weak door speakers, but leaves aftermarket subwoofers sounding flat at higher listening levels.
Included in the complete bass package (PBK Series) is the NVX XLCA2X Active Line-Output Converter. It taps into factory speaker lines, converts high-level signals into clean low-level RCA outputs, and uses integrated xBOOST signal restoration (30 Hz–60 Hz) to feed a flat, distortion-free sub-bass signal to your amplifier.
Recommended Monoblock Amplification
The complete bass package pairs the enclosure with an ultra-compact NVX Micro Class-D Monoblock Amplifier. Delivering clean power efficiency at 2 ohms, its small chassis easily mounts out of sight underneath a front seat frame or behind trunk side trim panels.
100% Pure OFC 8-Gauge Power Grid
To ensure clean current flow from the battery without electrical resistance, complete packages come with an NVX XKIT82 8-Gauge Oxygen-Free Copper (OFC) Wiring Kit. Pure copper conductors prevent high wire resistance and voltage drops, keeping your amplifier operating safely and reliably.
Frequently Asked Questions
Can I still access my Hyundai Elantra spare tire with this box installed?
Yes. The enclosure is custom-molded to fit flush inside the trunk side corner pocket, clearing the lower floor mat seam so you can easily lift the carpet panel to reach your spare tire or inflation kit.
Will this custom enclosure fit an Elantra GT or Elantra N-Line?
No. The Elantra GT (hatchback) and newer 7th-Gen Elantra models feature completely different trunk inner panel contours. This enclosure is engineered exclusively for 2016–2020 6th-Gen Elantra Sedans.
Does this package work with factory Hyundai radio units?
Yes. The included NVX XLCA2X line-output converter accepts up to 30V high-level speaker inputs, allowing it to tap directly into factory speaker lines on both standard and amplified Hyundai factory sound systems.