HK Audio FINEO FO S218 4000 Watt Install Sub Reflex 4 ohm (Black) - 2x18"
SKU: 55131110255

HK Audio FINEO FO S218 4000 Watt Install Sub Reflex 4 ohm (Black) - 2x18"

Sale price$1484.55 Regular price$1649.50
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

HK Audio FINEO FO S218 4000 Watt Install Sub Reflex 4 ohm (Black) - 2x18"Deeper, louder, stronger. With its two 18 woofers with 3 voice coils, the FO S218 is the most powerful subwoofer in the series and offers the deepest frequency response. The ideal complement for the FO 12 and FO 15 in stereo, 2. 1 or surround systems. The subwoofer can be placed upright or on its side and offers a milled cable duct to the bottom, left and right for cable routing close to the wall. The front is protected by a full surface grille, which

Deeper, louder, stronger. With its two 18″ woofers with 3″ voice coils, the FO S218 is the most powerful subwoofer in the series and offers the deepest frequency response. The ideal complement for the FO 12 and FO 15 in stereo, 2.1 or surround systems. The subwoofer can be placed upright or on its side and offers a milled cable duct to the bottom, left and right for cable routing close to the wall. The front is protected by a full-surface grille, which is supported by solid reinforcements on the inside. This makes the FO S218 suitable not only for use in sports venues (for which a ball-impact resistance certificate in line with DIN 18032-3 is provided), but also for “wild” club and concert environments. 

Specifications

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 55131110255

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.3 ★★★★★
Based on 1730 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
L
Verified Purchase
LC
Houston, US
★★★★★ 5
LOVE THEM!!
Size: Small, Color: (001) Black / Black / Castlerock
LOVE! These socks are so comfortable! I wear a 5 in women's and a 3 in big kid shoes. The small fit me perfectly. I see where some say they run small but I can't say that was an issue for me. They are "snug" but thats what you want with a no show sock. I feel they have support vs the ones i used to buy at Walmart. They are very soft! I am actually buying more today and throwing my other ones in the trash!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 18, 2026
L
Verified Purchase
Lucy Mejia
Waukegan, US
★★★★★ 5
So will not write down your foot
Size: Medium, Color: (001) Black / Black / Castlerock
I love these socks. They have a little bit of gel on the top of the heel for support in your tennis shoes and so your socks don’t write down. Very good quality.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
T
Verified Purchase
Twins9
Belleville, US
★★★★★ 5
Comfy and Stay Put
Size: Medium, Color: (002) Black / Black / Halo Gray
These socks are honestly great. They’re super thin and light, so once you have them on, you kind of forget they’re even there. No bulky feeling in your shoes at all. The best part is they actually stay on. I hate no-show socks that slide down after five minutes, and these don’t do that. The little grip on the heel really works, so you’re not constantly adjusting them all day. They’re breathable too, which is nice if your feet run warm. They dry fast and don’t get that gross sweaty feeling. And there’s no annoying seam on the toe, so nothing rubs or feels uncomfortable. Basically, they’re just comfy, stay put, and don’t cause problems — which is all I want from socks.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 16, 2026
S
Verified Purchase
swwkennyg
Draper, US
★★★★★ 5
Perfect sucks
Size: Medium, Color: (001) Black / Black / Castlerock
Wonderful socks . The weight is perfect !! These do not slip when in a shoe they stay out !!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
M
Verified Purchase
Monica Alzate
Chelsea, US
★★★★★ 4
Amazing but quality changed
Size: Large, Color: (002) Black / Black / Halo Gray
Love these socks so much, been buying them for about 4 years now!! Not giving them 5 stars anymore because the quality is different and not as good, durable and thick as before.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 10, 2025

recommand products