- COMPLETE TRIPLE 8" HIGH-OUTPUT BASS PACKAGE: Includes three Sundown Audio X Series V4 8" 1250W RMS subwoofers paired with a custom-tuned Adire Audio triple 8" birch ported enclosure designed for deep bass extension, powerful low-frequency response, and impressive overall output.
- EXTREME POWER HANDLING & HIGH EXCURSION PERFORMANCE: Each Sundown Audio X Series V4 8" subwoofer handles 1250 watts RMS and features a triple-stacked motor structure with a high-excursion suspension system for aggressive bass output with excellent control, durability, and low distortion.
- CUSTOM-TUNED TRIPLE 8" BIRCH PORTED ENCLOSURE: Built from durable 24mm birch plywood and engineered specifically for Sundown Audio X Series subwoofers, this enclosure features 3.0 cubic feet of net airspace, nearly 40 square inches of port area, and a 34Hz tuning frequency for optimized efficiency and powerful low-end response.
- DESIGNED FOR DEEP, CLEAN, AND POWERFUL BASS: Engineered for high-output daily systems and serious bass enthusiasts, this combo delivers strong SPL capability with tight musical bass response for rap, EDM, rebassed music, demos, and other bass-heavy listening styles.
- PREMIUM BUILD QUALITY & EASY INSTALLATION: Heavy-duty birch construction helps reduce enclosure flex while improving durability and sound quality. The enclosure includes pre-wired metal binding posts for a clean, professional, and simplified installation process.
Sundown 1250W RMS Dual 2 or 4 Ohm 8" V4 Subwoofers w/ Triple 8" Birch Ported Box
This Listing Includes:
- (3) Sundown Audio X Series V4 Dual 2-Ohm or Dual 4-Ohm 8" Subwoofers
- (1) Adire Audio Triple 8" Birch Ported Subwoofer Enclosure for Sundown Audio X Series V3/V4
Experience powerful low-frequency performance with this expertly matched bass package featuring three Sundown Audio X Series V4 8" subwoofers paired with a custom-tuned Adire Audio triple 8" birch ported enclosure. Designed for high-output daily systems and serious bass enthusiasts, this combo delivers deep bass extension, impressive output capability, and clean musical response while maintaining excellent durability and efficiency.
The Sundown Audio X Series V4 8" subwoofers are engineered with high-excursion suspension systems, triple-stacked motor structures, and precision-built components for aggressive bass performance with low distortion. Combined with the custom-designed Adire Audio enclosure, this setup maximizes low-frequency response, efficiency, and overall system output.
Shipping Disclosure:
Please note that the subwoofers and enclosure ship separately and may arrive at different times. Both items are carefully packaged to help ensure safe delivery.
Features
- Triple Sundown Audio X Series V4 8" subwoofers rated at 1000 Watts RMS each
- Available in Dual 2-Ohm or Dual 4-Ohm configurations
- High-excursion suspension design for deep and aggressive bass output
- Custom-tuned triple 8" birch ported enclosure optimized for X Series subwoofers
- Designed for strong low-frequency extension and low distortion
- Heavy-duty birch construction for durability and reduced enclosure flex
- Pre-wired enclosure for easier installation
Specifications:
Sundown Audio X-8 V4 8" Subwoofers (Each):
- RMS Power Handling: 1250 Watts
- Peak Power Handling: 2500 Watts
- Voice Coil Configuration: Dual 2-Ohm or Dual 4-Ohm
- DC Resistance (Re): 6.0 Ohms
- Voice Coil Diameter: 2.5"
- Sensitivity: 79.8 dB @ 1W/1m
- Xmax: 19mm One-Way Linear Excursion
- Triple-Stacked Motor Structure
Thiele & Small Parameters
- Fs: 44.150 Hz
- Vas: 3.562 L
- Qes: 0.497
- Qms: 2.30
- Qts: 0.409
- BL: 27.141 NA
- Mms: 220.09 g
- Cms: 59.044 um/N
Dimensions (Each Subwoofer):
- Outside Diameter: 8.71"
- Cutout Diameter: 7.32"
- Mounting Depth: 7.56"
- Motor Diameter: 6.88"
- Driver Displacement: 0.13 cu ft
Adire Audio Triple 8" Birch Ported Enclosure:
- Net Internal Volume: 3.0 Cubic Feet
- Tuning Frequency: 34Hz
- Port Area: 39.96 Square Inches
- Construction Material: 24mm (1") Birch Plywood
- Durable Exterior Finish
- Pre-Wired Metal Binding Posts
External Dimensions:
- Height: 15"
- Width: 18"
- Depth: 33"
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.
