2500W RMS Dual 1 or 2-Ohm 12" Z Series V6 Subwoofer w/Dual 12" Birch Ported Box

• All-in-One Package – Pre-matched subwoofers and enclosure for seamless compatibility and optimal performance.
• Custom Dual Enclosure – Adire Audio’s precision-tuned box enhances sound quality and bass output at 31 Hz.
• Premium Materials – Built with durable birch plywood, 1-inch baffles, and a gray-stained finish for long-lasting use.
• Advanced Subwoofer Features – Includes Mega-Roll v.2 surrounds, black aluminum 8-layer voice coils, and ultra-linear spider packs for unmatched clarity and power.

2500W RMS Dual 1 or 2-Ohm 12" Z Series V6 Subwoofer w/Dual 12" Birch Ported Box

This Listing Includes:

• (1) Sundown Z Series V6 Dual 1-Ohm or 2-Ohm 2500W RMS 12" Subwoofer


• (1) Adire Audio Single 12" Birch Ported Subwoofer Box (For Sundown Audio V6 Z Series Only)

Experience unparalleled bass performance with this all-in-one combo featuring two Sundown Audio Z v.6 Series 12" Subwoofers and the Adire Audio Dual 12" Birch Ported Subwoofer Box. Designed for audiophiles and bass enthusiasts, this package combines massive power, advanced subwoofer technology, and a precision-engineered enclosure to deliver clean, powerful, and distortion-free bass. The Sundown Z v.6 subwoofers are equipped with a Mega-Roll v.2 surround, black aluminum 3-inch 8-layer voice coils, and a custom-tooled basket, making them the perfect choice for deep, impactful sound. Paired with the Adire Audio enclosure, which is specifically tuned for these subwoofers, this combo ensures optimal sound quality and durability.

Shipping Disclosure:

Please note that the subwoofer and enclosure are shipped separately and may arrive at different times. Rest assured, both items will be carefully packaged and sent directly to you for a seamless setup experience.

Subwoofer Specifications (Sundown Audio Z v.6 Series 12"):

• Power Handling: 2500 Watts RMS (each)


• Xmax: 35mm one-way by 70% BL


• RE (Ohms): 1.9


• FS (Hz): 33.8198


• VAS (L): 15.9340


• Qes: 0.3896


• Qms: 5.3260


• Qts: 0.3630


• Le (mH): 1.9749


• BL (NA): 20.7920


• Mms (Grams): 412.9036


• Cms (uM/N): 53.6353


• Sensitivity (dB @ 1w/1m): 83.7396


• Subwoofer Dimensions: 17" x 17" x 17.5"

Enclosure Specifications (Adire Audio Dual 12" Birch Ported Subwoofer Box):

• Net Internal Volume: 5.0 cubic foot


• Tuning Frequency: 31 Hz


• Port Area: 70 sq inches


• Port Dimensions: 12†x 1.35â€


• Subwoofer Cut-Out Diameter: 7.36â€


• Construction Material: 3/4 inch (18mm) plywood


• Baffle Thickness: Solid 1 inch (24mm)


• Ply Count: 13-ply birch veneer (1-inch baffle: 17-ply)


• Finish: Gray-stained


• Pre-Wired: Metal binding post


• Enclosure Dimensions: 18†H x 21.75†W x 38.625†D

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

• Bancontact
• iDEAL

Bank Transfers

• Zelle

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?

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• Make sure you’ve received the shipping confirmation email with the tracking number.
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• If the issue persists, please refer to our detailed guide on tracking your order or contact our customer service team for further assistance.