Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 11 - Jul 16
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Sundown Audio - X-Series v.4 18”The Sundown Xv4 18 Subwoofer delivers unmatched power and control for serious bass enthusiasts. Built with high grade X v. 4 coils, this subwoofer is designed to handle up to 3000W RMS 6000W peak power, ensuring maximum output without distortion. Its optimized design enhances air movement and cooling, providing long lasting performance even under heavy use. The advanced motor structure and large cone area (SD 113. 41) create powerful low frequency
- The Sundown Xv4 18″ Subwoofer delivers unmatched power and control for serious bass enthusiasts. Built with high-grade X v.4 coils, this subwoofer is designed to handle up to 3000W RMS / 6000W peak power, ensuring maximum output without distortion.
- Its optimized design enhances air movement and cooling, providing long-lasting performance even under heavy use. The advanced motor structure and large cone area (SD 113.41) create powerful low-frequency response and clean sound reproduction.
- Perfect for sealed or ported enclosures, the Xv4 18″ gives you flexibility in setup and tuning — whether for SPL competition or everyday high-quality listening.
- Durable, reliable, and beautifully crafted, this subwoofer is the next-level upgrade your sound system deserves.
-
18″ Xv4 Series Subwoofer
-
3000W RMS / 6000W Peak Power
-
Dual 1-Ohm or Dual 2-Ohm Voice Coil Options
-
Precision-engineered X v.4 Coils for stability
-
Heavy-duty motor with 9.25″ diameter
-
Deep bass response with 35 mm Xmax
-
Sealed or ported enclosure compatibility
-
Recommended Port Tuning: 32 Hz
-
Built for extreme durability and clean sound
Specification Value RMS Power 3000 W Peak Power 6000 W Displacement 0.28 cu ft Mounting Depth 15″ Outside Diameter 18.42″ Cutout Diameter 16.69″ Motor Diameter 9.25″ Sealed Enclosure Not Recommended Ported Enclosure 7.00 cu ft Recommended Port Tuning 32 Hz Recommended Port Area 112 sq in 4th Order Sealed Side 3.0 cu ft 4th Order Ported Side 9.0 cu ft 4th Order Port Area 180 sq in 4th Order Port Length 8″ Xmax 35 mm SD (Cone Area) 113.41 RE (Ohms) 2.05 / 3.74 FS (Hz) 25.87 / 25.58 VAS (L) 93.67 Qes 0.63 / 0.55 Qms 4.13 / 4.03 Qts 0.54 / 0.84 BL (NA) 19.74 / 26.8 Mms 737.81 / 656.74 Sensitivity 86 / 87 dB T/S Specs RMS Power (D2)RMS Power (D1)Peak Power (D1)Peak Power (D2)RE D1 (Ohms)RE D2 (Ohms)FS D1 (Hz)FS D2 (Hz)VAS D1 (L)VAS D2 (L)Qes D1Qes D2Qms D1Qms D2Qts D1Qts D2BL D1 (NA)BL D2 (NA)Mms D1 (Grams)Mms D2 (Grams)Cms D1 (uM/N)Cms D2 (uM/N)Sens D1 (dB @ 1w/1m)Sens D2 (dB @ 1w/1m)Xmax D1Xmax D2Subwoofer Measurements Displacement (Inches)Depth (Inches)Cutout (Inches)Motor Diameter (Inches)Ported Enclosure Specs Ported Enclosure SizeRecommended Port AreaRecommended Port Tuning4th Order Enclosure Specs 4th Order Sealed Side4th Order Ported Side4th Order Port Area4th Order Port Length
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.0 ★★★★★
Based on 2470 reviews
Sort
Product Reviews
★★★★★ 5
Decent product. Fun for dogs
Size: Dog Rope Toy - M
My dogs loved this toy so much that they ripped it just after a month use. So durability may be lacking a bit but my dogs loved it. The price can be less since it doesn’t last that long, it’s lightweight so it’s easy to throw, and super fun for dogs.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 6, 2025
★★★★★ 1
Cheaply made
Size: Dog Rope Toy - M
I ordered this toy for my son's dog and in about 10 minutes or less it was falling apart I now have four pieces not a good product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
★★★★★ 5
Fun tug toy that holds up well
Size: Dog Rope Toy - M
We got this rope tug toy for our dog and it’s been a hit. He loves playing tug of war and will happily drag this around the house looking for someone to play with. The rope is thick and feels like real cotton, not that super cheap stiff stuff. It has some give to it but still feels sturdy.
So far it has held up well to lots of chewing and tugging. Our dog isn’t a hardcore destroyer, but he definitely tests his toys, and this one is still in one piece. It’s also a nice size, not tiny, so it works well for medium and bigger dogs, but a smaller dog could still enjoy it.
Overall, it’s a simple toy that does what you want it to do. Keeps the dog busy, gives them something safe to chew on, and holds up better than most rope toys we’ve tried.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 3, 2026
★★★★★ 3
Red flag!!!
Size: Dog Rope Toy - M
Within an hour of giving this toy to my dog, she chewed off the plastic handle and the plastic ball. The worst part is that they came off in very small pieces, some like crumbles. This could have been a serious problem if I had not been watching her and able to take it away.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026
★★★★★ 4
Hoping for the Best
Size: Dog Rope Toy - M
Seem pretty strong, but I haven't had that long - hope it holds up to my chewer
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026