HK Audio LINEAR SUB 4000 2400 Watt 18" Passive Subwoofer

Marsoni

M251S

$1299.50

Get it in 3 business days with 1 day shipping. Friday, May 29

HK Audio LINEAR SUB 4000 2400 Watt 18" Passive SubwooferOverview The HK Audio LINEAR SUB 4000 is a powerful 18" dual vented bandpass subwoofer designed to deliver an impressively deep low frequency response, ranging from 30 to 100 Hertz. Compatible with all LINEAR 5 full range speakers and mid high units, it serves as an excellent extension to the LINEAR 5 LTS long throw system. Its robust construction and high power handling capabilities make it ideal for professional sound reinforcement applications.

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The poli-ox worked well, just know that it will require several applications to remove old buildup and oxidation. once you are done, the paint will still look oxidized, but once you put the sealer on, the color will be deep and shiny. The sealer itself is supposed to be enough for a much bigger RV than we used it for. (17') We used 3/4 of a bottle for 1 side, due to the fact that we would remove and start over because it left ridges like a brush in paint. On the second side of the RV, we scrapped using the Mitt, and low and behold, using a microfiber towel to apply solved all of the issues. No more ridges and the remaining 1/4 of the bottle was enough to apply 5 coats. The mitt also wastes a LOT of product. So be warned use a Microfiber towel (that has been previously washed) and it will save you a LOT of time, money and angst.

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Reviewed in the United States on March 12, 2023

Verified Purchase

Michelle

Alexandria, US

★★★★★ 5

What a Product!!!!

Size: Powder Poli Ox - Pack of 6

Used this on my motorhome. All I can say is "WOW"! I live in Florida and the water and sun beats up everything, my beautiful motorhome was looking horrible. Oxidation was happening, it was fading and just looking bad. I took the shot and bought this, I can't believe how well this stuff works! My motorhome looks amazing!!!!!!! I am so pleased!!!!! Best 129.99 is have ever spent!!!!!

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Reviewed in the United States on March 21, 2026

Verified Purchase

mlatc3

Port Orchard, US

★★★★★ 5

Nice blocks

Style: Levelers, Size: 20 Pack

This is a must have on campers. They make it so much easier to level. These are good quality leveler blocks. All work together.

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Reviewed in the United States on May 23, 2026