HELIX IK W8 - 8" Subwoofer - 1 x 2 Ohm
SKU: 9020463673

HELIX IK W8 - 8" Subwoofer - 1 x 2 Ohm

Sale price$111.60 Regular price$124.00
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Description

HELIX IK W8 - 8" Subwoofer - 1 x 2 OhmHELIX IK W8 Stunning bass performance out of compact dimensions With the new KW chassis, were expanding our IMPACT subwoofer lineup, offering powerful drivers for use in very compact enclosures. Especially when it comes to the most efficient usage of available space in the vehicle regarding an individual enclosure design, these woofers create completely new installation possibilities without ever compromising the acoustic performance. Clever down to

HELIX IK W8

Stunning bass performance out of compact dimensions 

With the new KW chassis, we’re expanding our IMPACT subwoofer lineup, offering powerful drivers for use in very compact enclosures. Especially when it comes to the most efficient usage of available space in the vehicle regarding an individual enclosure design, these woofers create completely new installation possibilities without ever compromising the acoustic performance.

Clever down to the last detail

The extremely stiff cone made of hand-scooped paper fibers in connection with the heavy-duty driver system not only converts amplifier power easily and without compression effects into loads of sound pressure, but also scores sonically with subtle beats. 

Flexible connection – 2 x 2 or 1 x 2 Ohms

The chassis are available as 1 x 2 Ohms (SVC2) or 2 x 2 Ohms (DVC2) version. Thus, these subwoofers always offers the right solution for every amplifier configuration to get the maximum performance out of it – whether mono, 2-channel or even multi-channel amplifier. 

"All inclusive" for self-made enthusiasts

In addition, the solid protective grille and gasket are also included. For optimal bass performance in DIY installations you can find recommendations for sealed and vented enclosures with all parameters such as net volume, port tuning frequency as well as DSP settings in our technical data sheet.

Features

  • 1 x 2 Ohms single voice coil
  • Extremely stiff, hand-scooped paper cone for outstanding impulse response
  • Double ventilated voice coil for minimum compression effects and high power handling
  • Long-excursion rubber surround for highest mechanical rating
  • Solid push terminals
  • Powerful magnet system for compact enclosures
  • Rugged magnet cover with HELIX lettering for perfect magnet protection
  • Grille and gasket included in delivery

Technical data

    IK W8-SVC2 – 1 x 2 Ohms
Power handling RMS / max. P 300 / 600 Watts
Impedance  Z 1 x 2 Ω
DC resistance  Re 1 x 2.0 Ω
Resonance frequency  Fs 37 Hz
Mechanical Q factor  Qms 4.01
Electrical Q factor  Qes 0.49
Total Q factor Qts 0.44
Compliance Cms 190 μm/N
Equivalent air volume Vas 13.4 L
Force factor  B*I 10.2 Tm
Sensitivity SPL

91.0 dB @ 2.83V / 1m
85.0 dB @ 1W / 1m

Cone area  Sd 219 cm²
Moving mass  Mms 86 g
Cone material   Hand-scooped paper cone
Mechanical resistance  Rms 6.1 kg/s
Voice coil diameter ø 50.8 mm
Voice coil winding height   24 mm
Max. linear excursion  Xmax +/- 8.0 mm
Outer diameter ø 213.5 mm / 8.40"
Installation diameter ø 182 mm / 7.17"
Installation depth   101 mm / 3.98"
     
Recommended enclosure volumes    
Sealed box    
Net volume   10 L
Lower limiting frequency (-3dB)   45 Hz
Recommended DSP settings   Recommended "self-define" highpass filter with 46 Hz cut-off frequency and Q = 1.5,
additional EQ filter 90 Hz / Q = 1.0 / -2.5 dB
     
Vented box    
Net volume   9 L
Port diameter ø 60 mm / 2.36"
Port area   28 cm²
Port length   46 cm / 18.1" (angled port)
Port tuning frequency Fb 38 Hz
Lower limiting frequency (-3dB)   41 Hz
Recommended DSP settings   Recommended "self-define" highpass filter with 40 Hz cut-off frequency and Q = 1.2,
additional EQ filter 90 Hz / Q = 0.9 / -2 dB
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: 9020463673

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4.5 ★★★★★
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jin
Louisville, US
★★★★★ 5
Most comfortable pillow I’ve ever slept on
Size: Queen (1 Count), Color: Crescent White(cooling)
This is the most comfortable pillow I have ever slept on. It doesn't mash down like other pillows. Cradles my neck perfectly plus it’s cool. I broke my neck a couple of years ago and this pillow feels very good and comfortable. Definitely recommend to everyone. Ive used it since May and it’s retained its shape.
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Reviewed in the United States on June 6, 2026
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Verified Purchase
AreTrue
Birmingham, US
★★★★★ 4
Smell
Size: Queen (2 Count), Color: Original White (Cooling)
The fact that there are not more comments on the smell of these pillows has me worried about some of yall. Listen, I LOVE the weight, and the firmness, it’s perfect for that. However, these pillows are RANK. They have a very strong mildew-ish smell that lingers. I took the outer cover off and washed it and let the pillow air out for a few days, the smell is still very strong when you press your face against it, which one does because it is in fact designed for that purpose. It smells so bad. It’s nauseating. I can smell it through two pillowcases and blanket that I threw on top of them hoping an extra layer would trap the smell. I’ll bake them in the Texas sun tomorrow and hope that helps, because otherwise these are the perfect pillows for someone who wants to feel like they are hugging a torso but can’t stand the sound/feel of someone else breathing. I don’t know…4 stars, if the smell goes away I’ll come back. Update: many many days later. Either they don’t really smell anymore or I got use to it. They’ve held their firmness and shape well. I like them.
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Reviewed in the United States on March 9, 2026
S
Verified Purchase
Samantha
Belleville, US
★★★★★ 5
Actually Cooling Pillow
Size: Queen (1 Count), Color: Original White (Cooling)
This is a really nice pillow, I was worried it would be too soft or too firm but it's just right and it's actually cooling, it feels cool every time I touch it. I've noticed an improvement in sleep since using it. Would recommend!
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Reviewed in the United States on May 27, 2026
T
Verified Purchase
Tyler and Kaela
Whiting, US
★★★★★ 5
Repurchased in King Size – Still Love These Cooling Pillows
Size: King (2 Count), Color: Original White (Cooling), Size: King (2 Count), Color: Original White (Cooling)
After using the queen-size version of these pillows for over a year, we purchased the king-size set when we upgraded to a king mattress. Both my husband and I really like them. The cooling feature works well, and we like that each side feels different—when I run cold, I use the softer bamboo side, while my husband prefers the cooler side since he tends to sleep hot. They fit well in our king-size pillowcases and feel supportive in all sleeping positions, whether I’m on my stomach, side, or back. I also appreciate that you can remove some of the filling to adjust the firmness. The covers are washable, which makes them easy to maintain. Overall, we’re very happy with this repurchase and the long-lasting comfort.
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Reviewed in the United States on April 15, 2026
M
Verified Purchase
Mystery Fan
Battle Creek, US
★★★★★ 3
Not great at cooling
Size: Queen (2 Count), Color: Original White (Cooling)
Each pillow cover has 2 sides, one marked for cooling, and the other a different fabric. The cooling side is about the same effectiveness as having a silk or satin pillow cover. It's only cool when you first touch it. The cooling side doesn't seem to absorb or wick moisture, so if you are sweaty - it keeps the moisture in place. You'll definitely want a regular pillow case over the pillow cover. In fact, if you suffer from night sweats, the non-cooling side is actually more comfortable. The pillow fill is ample, and simple to squish around for more support for your neck, etc. Think bean bag. But it will retain your impression after use. I find I need to do as I did when I had down pillows - give it a few good shakes in the morning when I make the bed to get it evened out for the coming night. In all, it is a well-made and comfortable pillow to sleep on, but it does not excel in cooling.
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Reviewed in the United States on May 29, 2026

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