SKU: 77431130927

PRO 8" Neodymium Water resistant Carbon Fiber Cone Mid-Bass Woofer 250 Watts Rms 4-Ohm

Sale price$161.97 Regular price$179.97
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Description

PRO 8" Neodymium Water resistant Carbon Fiber Cone Mid-Bass Woofer 250 Watts Rms 4-OhmDS18 PRO RY8. 4NMB 8" Mid Bass Woofer Carbon Fiber Water Resistant Neodymium Magnets 500 Watts Max 4 ohm The PRO RY8. 4NMB is here to bring an intense kick to your motorcycle! The PRO RY8. 4NMBs neodymium motor promotes higher sensitivity and extreme power handling for professional quality reproduction for casuals, audiophiles, and competitors alike. This speakers power ratings comes in at an unparalleled 250W RMS and 500W MAX power, helping push this

DS18 PRO-RY8.4NMB 8" Mid-Bass /Woofer Carbon Fiber Water Resistant Neodymium Magnets 500 Watts Max 4-ohm

The PRO-RY8.4NMB is here to bring an intense kick to your motorcycle!

The PRO-RY8.4NMB’s neodymium motor promotes higher sensitivity and extreme power handling for professional quality reproduction for casuals, audiophiles, and competitors alike.

This speakers power ratings comes in at an unparalleled 250W RMS and 500W MAX power, helping push this speaker’s ability to deliver raw vocal power that brings your music to life!

With frequency responses as high as 12KHZ and as low as 40Hz the PRO-RY8.4NMB has the perfect frequency bandwidth to bring out the best in your music during every session.

The temperature tested 2” CCAW Voice Coil utilized by the PRO-RY8.4NMB encourages users to play their music when they want and as long as they want!

The PRO-RY8.4NMB’s cone is made from a carbon fiber and resin mix reinforced by rubber surrounds for extra protection. Never worry about getting caught in the rain again! Every part used in the construction of this speaker has been coated to withstand the effects of corrosion caused by environmental damage. This ensures your speaker will play and last as long as you want!

The PRO-RY8.4NMB is applicable in builds of any kind (Car and Powersports Builds) due to its resistance to water and intense reproduction capabilities!

Order your PRO-RY8.4NMB today to get LOUD and stay there!

Highlights

  • Water resistant woofer designed especially for motorcycles but applicable in many builds
  • Durable Aluminum Basket with Carbon Fiber and Resin Cone for maximum resistance against environmental damage
  • 1mm Xmax one way for fuller deeper mid bass frequency responses
  • Neodymium magnet and motor structure for detailed audio on every session
  • Perfect solution for bikers looking to fill out their mid-bass frequency responses
  • Can be used free air, but are designed to be used in small sealed or ported enclosures for the highest levels of exceptional mid bass response

Great For

  • Motorcycle Audio
  • Pro Audio
  • Car Audio
  • Powersports Audio
  • Home Audio
  • DIY Projects

Technical Details 
SPECIFICATIONS  
Nominal Diameter  8" / 203mm
Nominal Impedance  4 ohms
RMS Power Handling  250 W
MAX Power Handling  500 W
Sensitivity (1w/1m)  88 dB
Frequency Response 40Hz-12KHz
Recommended Low Pass Crossover 400 Hz
Pair or Single Single
MOTOR  
Voice Coil Diameter 2" / 50.8mm
Voice Coil Former Material  TIL
Winding Material  CCAW
Cone Material Carbon Fiber + Resin
Dust Cap Material Carbon Fiber + Resin
Surround Material Rubber
Basket Material  Aluminum
Basket Color/Finish Black
Magnet Material Neodymium Rings
Magnet Weight 10 oz
Displacement Volume 0.56L / 0.02ft3
MEASUREMENT  
Overall Diameter 8.3" / 212mm
Overall Depth 4.5" / 115mm
Front Mount Baffle Cutout 7.2" / 185mm
Mounting Depth 4" / 104mm
Motor Diameter 4.3" / 110mm



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: 77431130927

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Bogdan Niculescu
Houston, US
★★★★★ 5
fits well
Size: (Pack of 1)
fit perfectly, easy install, saved a buck and time not going to the mechanics.
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Reviewed in the United States on April 19, 2026
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R. Lieberum
Chelsea, US
★★★★★ 5
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This engine air filter fit perfectly in my 2018 Honda CR-V. No idea how it will perform but so far the Check Engine Light has not come on since installing the filter. Since there have been no problems I am happy with this filter and will likely buy again in the future. The filter does appear to be made from quality materials.
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Reviewed in the United States on April 19, 2026
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Khan_Family
Dallas, US
★★★★★ 5
I love eco guard engine and air filter
Size: (Pack of 1)
Great price with good quality.
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Reviewed in the United States on May 3, 2026
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M. Tibbetts
Alexandria, US
★★★★★ 4
My mileage on my 2021 Honda CRV dropped 4 miles /gallon with this air filter.
Size: (Pack of 1)
My mileage on my 2021 Honda CRV dropped 4 miles /gallon with this air filter. It did fit well and was easy to install, but then I watched my average around town mileage drop from 29-31mpg to 26-27 mpg thru 2 tank fillups. The Honda repair person said this filter looked like the Honda one and was surprised when we wanted to switch it out. Granted, it looked just like the Honda filter, but the folds on the Honda one are yellowish and I have to think there has to be some difference in the texture. The average mileage went back up within 10 miles of replacing it and 3 fill ups later it has continuously maintained its original average of 29-31 with the Honda filter.
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Reviewed in the United States on February 14, 2024
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Randy Shiverdecker
New York, US
★★★★★ 5
As good as Original Manufacturer Equipment.
Size: (Pack of 1)
Cheaper than having the dealer or oil change store do it. Only takes a minute to replace your existing filter for a lot less than what they want to charge you. High quality too!
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Reviewed in the United States on January 9, 2026

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