Sundown Audio U Series 6.5" Subwoofer Dual Voice Coil 2/4 Ohm 500W RMS

• U Series 6.5" Subwoofer
• Premier “standard suspension” woofer series
• Dual Voice Coil 2 or 4 Ohm
• Mini Mega W surround

Sundown Audio U Series 6.5" Subwoofer Dual Voice Coil 2/4 Ohm 800W Peak Lot

This Listing Includes:

• (1) U Series 6.5" Subwoofer

Features:

• 500 Watts RMS/1000 Watts Peak


• Dual 2 or 4 ohm voice coils


• Optimized for small ported enclosures


• Aluminum 1.75" voice coil former for superior heat dissipation


• High-temperature copper voice coil


• Double stitched surround


• Heavy-duty cast basket


• Spring-loaded terminals accept up to 8-gauge wire


• Stitched-on heavy-duty tinsel leads


• Solid pole with vent channels and aluminum shorting ring cap


• Rear gap-venting


• Top-Plate Cooling Channels

Dual 2 Ohm Specifications:

• RE (Ohms): 4.0586


• FS (Hz): 41.9533


• VAS (L): 2.9053


• Qes: 0.5238


• Qms: 8.5834


• Qts: 0.4937


• Le (mH): 4.0112


• BL (NA): 16.7428


• Mms (Grams): 137.2546


• Cms (uM/N): 104.8528


• Sens (dB @ 1w/1m): 77.8706


• XMAX: 19mm

Dual 4 Ohm Specifications:

• RE (Ohms): 6.6274


• FS (Hz): 38.6925


• VAS (L): 3.7701


• Qes: 0.5005


• Qms: 7.2470


• Qts: 0.4681


• Le (mH): 5.5892


• BL (NA): 20.0082


• Mms (Grams): 124.3518


• Cms (uM/N): 136.0613


• Sens (dB @ 1w/1m): 78.1460


• XMAX: 19mm

Product Dimensions:

• Cutout Diameter: 5.94 inches


• Mounting Depth: 5.70 inches


• Overall Diameter: 7.17 inches


• Overall Depth: 6.22 inches

Ported Enclosure

• Size: .25-.35 cu. ft. net


• Port Area: 4-5 sq. in.


• Port Tuning: 35hz -40hz

Sealed Enclosure

• Size: 0.125-0.2 cu. ft. net


• Displacement:  .04 cu. ft.

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?

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.