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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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

I was worried maybe this backpack wouldn’t last us the school year. I was pleasantly surprised as we are nearing the end of the year. It’s the most adorable pink and purple bag! It is on the smaller side but we’ve still been able to fit a normal sized folder in it plus her extra clothes and snacks with some room still.

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Reviewed in the United States on March 24, 2026

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Heather-Leigh Scott

Grantham, US

★★★★★ 5

VERY NICE BUT TOO BIG

Size: One Size, Color: Lilac Ditsy Floral

Let me start by saying its a great product and looked to be made very well. I did have to return it though because it was far too big for my child. Other than size being 1 size fits all with no dimensions given and, yes, somewhat smaller than other backpacks (for adults) it seemed to be a decent backpack. Too bad we couldn't use it but if you have a older kid would would great for.

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Reviewed in the United States on December 5, 2025

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Melissa

Los Angeles, US

★★★★★ 3

Size too small.

Size: One Size, Color: Beige Leopard

It was too small. Couldn’t fit my everyday planner in it.

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Reviewed in the United States on December 29, 2025

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Savannah

Omaha, US

★★★★★ 5

Good Quality

Size: One Size, Color: Light Pink

Bought this for my 2 year old daughter for daycare. Big enough to fit her blanket, diapers wipes and extra clothing. Good quality and fits her well. She loves it.

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Reviewed in the United States on December 3, 2025

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Mocha

San Leandro, US

★★★★★ 4

Too small

Size: One Size, Color: Light Blue Shark Waves

Its too small for my kindergartener.

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Reviewed in the United States on December 9, 2025