- Dual Subwoofers, Dual Enclosure: Includes two high-performance X-8v3 subwoofers and a dual 8" birch ported enclosure for the ultimate bass experience.
- Premium Sound Quality: The X-8v3 subwoofers feature advanced suspension, a triple-stacked magnet, and a 3” voice coil for precise, distortion-free sound.
- Optimized Enclosure Design: The birch enclosure is tuned to 34 Hz and built to match the subwoofers, maximizing bass response and durability.
- Complete Bass Combo: This 2-in-1 package includes two Sundown Audio X-8v3 subwoofers and an Adire Audio dual 8" birch ported enclosure, perfectly matched for superior performance and deep, resonant bass.
Sundown X-8 V4 Dual 8" 1250 Watts RMS Subwoofers w/ Birch Ported Box 2 or 4 Ohm
This Listing Includes:
(2) Sundown Audio X-8 V4 8" Subwoofers (Dual 2-Ohm or Dual 4-Ohm)
(1) Adire Audio Dual 8" Birch Ported Enclosure for Sundown Audio X Series V3/V4
Experience powerful low-frequency performance with this compact high-output bass package featuring two Sundown Audio X-8 V4 8" subwoofers paired with a custom-tuned Adire Audio dual 8" birch ported enclosure. Designed for serious bass enthusiasts who need strong output without sacrificing space, this setup delivers deep bass extension, impressive output capability, and clean musical response in a compact footprint.
Each Sundown Audio X-8 V4 subwoofer is engineered with a high-excursion suspension system, triple-stacked motor structure, and advanced cooling design for aggressive bass performance with excellent control and durability. Combined with the precision-built Adire Audio enclosure, this setup maximizes low-frequency response, efficiency, and overall system performance while maintaining tight and responsive bass reproduction.
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:
- Dual 8" high-output subwoofer package
- 2500 Watts RMS total power handling
- Available in Dual 2-Ohm or Dual 4-Ohm configurations
- High-excursion suspension with 19mm Xmax per subwoofer
- Triple-stacked motor design for strong low-frequency performance
- Birch ported enclosure tuned for deep bass response
- Compact footprint with impressive output capability
- Pre-wired enclosure for simplified 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
Adire Audio Dual 8" Birch Ported Enclosure:
- Net Internal Volume: 2.0 Cubic Feet
- Tuning Frequency: 34Hz
- Port Area: 27.025 Square Inches
- Construction Material: Birch with 24mm (1") Birch Baffle
- Pre-Wired Enclosure
External Dimensions:
- Height: 13"
- Width: 18.5"
- Depth: 25.75"
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.
