DS18 8" Coaxial Sealed NEO Marine Powersports Speakers 300W RMS 4 Ohm Pair

• SEALED BACK & IP65 WATER RESISTANT: This 8" 2-way coaxial has a sealed back design and an IP65 rating, so it's ready for open-air installs like motorcycles where splashes, dust, and weather are part of the ride.
• CARBON FIBER CONE: The curvilinear carbon fiber cone is stiff and lightweight, helping the speaker stay clean and controlled even when you turn it up.
• BULLET TWEETER FOR CLEAR HIGHS: A 2" aluminum bullet tweeter with a neodymium magnet delivers sharp, crisp highs that cut through road and wind noise.
• 300W RMS WITH 99dB SENSITIVITY: Handles 300W RMS (600W max) at 4 ohms, and the 99dB sensitivity means it gets loud without needing a huge amp.
• LIGHTWEIGHT NEODYMIUM MOTOR: Neodymium magnets on both the woofer and tweeter keep the weight down and the mounting depth shallow at just 3.2", making it easier to fit in tight spots.

DS18 8" Coaxial Sealed NEO Marine Powersports Speakers 300W RMS 4 Ohm Pair

This Listing Includes

• (2) NVY-8CFZTSEALED-N4 8" Coaxial Speakers *Grilles not included

The NVY-8CFZTSEALED-N4 is an 8" 2-way coaxial speaker with a sealed back, a carbon fiber cone, and a bullet tweeter. It handles 300W RMS (600W max) at 4 ohms and has a 99dB sensitivity rating, so it gets loud without needing a ton of power. With an IP65 water-resistance rating and a lightweight neodymium motor, it's built for setups like motorcycles where weight, space, and weather matter.

Features

• Sealed back design with an IP65 water-resistance rating


• Carbon fiber curvilinear cone with a rubber surround


• 2" aluminum bullet tweeter for crisp highs


• Neodymium magnets on both woofer and tweeter keep weight and mounting depth down (3.2" mounting depth)


• 99dB sensitivity (1W/1m) for strong output from lower power

General Specifications:

• Nominal Diameter: 8" / 203mm


• Nominal Impedance: 4 Ohms


• RMS Power Handling: 300W


• Max Power Handling: 600W


• Sensitivity (1W/1m): 99dB


• Frequency Response: 300Hz to 20kHz


• Recommended High-Pass Crossover: 400Hz


• Number of Ways: 2-Way


• Water-Resistance Rating: IP65


• Sold As: Pair


• Grille Included: No

Woofer Specifications:

• Voice Coil Diameter: 1.5" / 38.6mm


• Voice Coil Former Material: Glass Fiber


• Winding Material: CCAW


• Cone Material: Carbon Fiber


• Surround Material: Rubber (PU)


• Basket Material: Aluminum


• Basket Color: Matte Black


• Magnet Material: Neodymium


• Magnet Weight: 8 oz


• Demodulating Rings: Yes


• Cone Shape: Curvilinear


• Speaker Terminals: 2 x Push 16ga (WF/TW)

Thiele & Small Parameters:

• Equivalent Volume (Vas): 0.296L / 0.01ft


• Excursion (One Way): 1mm


• Free Air Resonance (Fs): 400Hz


• Mechanical Factor (Qms): 3.445


• Electrical Factor (Qes): 1.997


• Total Factor (Qts): 1.264


• Moving Mass (Mms): 29.682g


• Mechanical Compliance (Cms): 0.005mm/N


• BL Factor: 11.031


• Voice Coil Inductance (Le): 0.116mH


• Cone Area (Sd): 201.06cm


• DC Resistance (Re): 3.4 Ohms

Tweeter Specifications:

• Type: Bullet


• Nominal Diameter: 2" / 50.8mm


• Voice Coil Diameter: 1" / 25.5mm


• Voice Coil Former Material: Kapton


• Winding Material: CCAW


• Diaphragm Material: Aluminum


• Magnet Material: Neodymium (N35H)


• Magnet Weight: 0.4 oz

Speaker Measurements:

• Overall Diameter: 8.2" / 210mm


• Overall Depth: 3.7" / 93.5mm


• Front Mount Baffle Cutout: 7" / 179mm


• Mounting Depth: 3.2" / 81mm


• Motor Diameter: 3.5" / 90mm

Accepted Payment Methods at Big Jeff Audio

At Big Jeff Audio, we strive to make your shopping experience as smooth as possible by offering a wide variety of payment options. Below is a complete list of the payment methods we accept:

Credit and Debit Cards

• Visa
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• Bancontact
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Bank Transfers

• Zelle

Financing Options

We also offer financing options to make purchasing easier. Learn more about our financing options here.

• Klarna
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If you have any questions or need assistance with payments, feel free to reach out to us at info@bigjeffaudio.com or call us at 737-BIG-JEFF.

Shipping Options and Delivery Time

Do You Offer Expedited Shipping?

Yes! At checkout, you can select from different shipping options:

• Standard Shipping: Free for orders over $100.
• Expedited Shipping: Available at an additional cost, calculated based on the weight and destination of your order.

How Long Does Delivery Take?

• Handling Time: Most orders are processed and shipped within 1 business day after receiving cleared payment. Occasionally, additional handling time may be required, but we’ll notify you if that’s the case.
• Standard Shipping: Typically takes 3-5 business days, though delivery may be affected by extreme weather or holidays.

What Happens If My Package Is Undeliverable?

If your package is refused or marked undeliverable and returned to us by the carrier, you’ll need to pay the full shipping cost to have the package resent. Alternatively, we can refund your order, minus the cost of shipping.

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