- COMPLETE HIGH-OUTPUT BASS PACKAGE: Includes the Sundown Audio X Series V4 12" 3000W RMS subwoofer paired with a custom-tuned Adire Audio birch ported enclosure for powerful low-frequency performance, deep bass extension, and high-output daily or competition-style systems.
- EXTREME POWER HANDLING & EXCURSION: The Sundown Audio Xv4 12" subwoofer handles 3000 watts RMS and 4000 watts peak power while utilizing a high-excursion suspension and massive triple-stacked motor structure for hard-hitting bass with excellent control and durability.
- CUSTOM-TUNED PORTED BIRCH ENCLOSURE: Precision-built 24mm birch plywood enclosure engineered specifically for Sundown Audio X Series V3/V4 subwoofers. Features 2.5 cubic feet of net airspace, 31Hz tuning, and 35 square inches of port area for optimized output and low-end response.
- BUILT FOR CLEAN, DEEP, AND LOUD BASS: Designed to deliver aggressive SPL output while maintaining musical accuracy and low distortion. Ideal for rap, EDM, rebassed music, demos, and high-performance car audio systems that demand powerful sub-bass response.
- EASY INSTALLATION & PREMIUM CONSTRUCTION: Enclosure comes pre-wired with heavy-duty terminal connections for simplified setup. Durable birch construction helps reduce enclosure flex while improving sound quality, output consistency, and long-term reliability.
3000W RMS Sundown X Series V4 12" D1/D2 Subwoofer w/Single 12" Birch Ported Box
This Listing Includes:
- (1) Sundown Audio X Series V4 12" Dual 1-Ohm or Dual 2-Ohm Subwoofer
- (1) Adire Audio Single 12" Birch Ported Enclosure for Sundown Audio X Series V3/V4
Experience deep, hard-hitting bass with this expertly matched subwoofer and enclosure package featuring the legendary Sundown Audio X Series V4 12" Subwoofer paired with a precision-built Adire Audio birch ported enclosure. Designed for serious low-frequency performance, this combo delivers extreme output, powerful low-end extension, and clean musical response for daily systems and high-output builds alike.
The Sundown Audio X Series V4 is engineered for ultra-high excursion and high power handling, making it ideal for enthusiasts who demand aggressive bass response without sacrificing sound quality. Matched with the Adire Audio custom-tuned birch enclosure, this setup maximizes efficiency, low-frequency extension, and overall output while maintaining tight, accurate bass reproduction.
Whether you're building an SPL-focused system or a powerful daily driver, this combo is built to perform.
Shipping Disclosure
Please note that the subwoofer and enclosure ship separately and may arrive at different times. Each item is carefully packaged to help ensure safe delivery.
Features
- 3000W RMS Power Handling for serious bass output
- Available in Dual 1-Ohm or Dual 2-Ohm configurations
- High-Excursion Suspension Design for extreme low-frequency performance
- Custom-Tuned Birch Ported Enclosure optimized for the X Series platform
- Deep Bass Extension with strong output and musical accuracy
- Durable 24mm Birch Construction for reduced flex and improved sound quality
- Pre-Wired Terminal Cup for simplified installation
- Excellent for daily drivers and high-output systems alike
Specifications:
Sundown Audio X Series V4 12" Subwoofers:
- RMS Power Handling: 3000 Watts Each
- Peak Power Handling: 6000 Watts Each
- Voice Coil Configuration: Dual 1-Ohm or Dual 2-Ohm
- Xmax: 30mm One-Way Linear Excursion
- Sensitivity: 83.06 dB @ 1W/1m
- Triple-Stacked 9.25" Motor Structure
- 3" 4-Layer Flat Aluminum Voice Coil
- High-Excursion Low Distortion Suspension
- Motor Diameter: 9.25"
- Driver Displacement: 0.23 Cubic Feet
T/S Parameters (D2):
- Re: 3.25 Ohms
- Fs: 36.06 Hz
- Vas: 15.75 Liters
- Qes: 0.54
- Qms: 4.82
- Qts: 0.49
- Le: 2.6 mH
- BL: 22.25 NA
- Mms: 367.13 Grams
- Cms: 53.04 uM/N
- Sd: 44.11
Subwoofer Dimensions:
- Mounting Depth: 11.75"
- Outside Diameter: 12.81"
- Cutout Diameter: 11.09"
- Motor Diameter: 9.25"
Adire Audio Single 12" Birch Ported Enclosure Specifications
- Net Internal Volume: 2.5 Cubic Feet
- Tuning Frequency: 31 Hz
- Port Area: 35 Square Inches
- Construction Material: 24mm (1") Birch Plywood
- Finish: Gray-Stained Exterior
- Pre-Wired Terminal Connection
External Dimensions:
- Height: 16"
- Width: 19"
- Depth: 27.375"
Accepted Payment Methods at Big Jeff Audio
At Big Jeff Audio, we strive to make your shopping experience as smooth as possible by offering a wide variety of payment options. Below is a complete list of the payment methods we accept:
Credit and Debit Cards
- Visa
- Mastercard
- American Express
- Discover
- Diners Club
Digital Wallets
- Amazon Pay
- Apple Pay
- Meta Pay (formerly Facebook Pay)
- Google Pay
- Shop Pay
- PayPal
International Payment Methods
Bank Transfers
Financing Options
We also offer financing options to make purchasing easier. Learn more about our financing options here.
- Klarna
- Affirm
- Sezzle
- Snap
- Acima
- Tiptop
If you have any questions or need assistance with payments, feel free to reach out to us at info@bigjeffaudio.com or call us at 737-BIG-JEFF.
Shipping Options and Delivery Time
Do You Offer Expedited Shipping?
Yes! At checkout, you can select from different shipping options:
- Standard Shipping: Free for orders over $100.
- Expedited Shipping: Available at an additional cost, calculated based on the weight and destination of your order.
How Long Does Delivery Take?
- Handling Time: Most orders are processed and shipped within 1 business day after receiving cleared payment. Occasionally, additional handling time may be required, but we’ll notify you if that’s the case.
- Standard Shipping: Typically takes 3-5 business days, though delivery may be affected by extreme weather or holidays.
What Happens If My Package Is Undeliverable?
If your package is refused or marked undeliverable and returned to us by the carrier, you’ll need to pay the full shipping cost to have the package resent. Alternatively, we can refund your order, minus the cost of shipping.
Why Can’t I Track My Order?
If you're having trouble tracking your order:
- Make sure you’ve received the shipping confirmation email with the tracking number.
- Log into your account on our website and use the “Check Your Order Status” button.
- If the issue persists, please refer to our detailed guide on tracking your order or contact our customer service team for further assistance.
