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8” High-Sensitivity Professional Midrange Loudspeaker with Neodymium Magnet
Neodymium Precision
The 8PRO400NMR-4 is a 8” high-sensitivity professional mid-range built for extreme output and clarity. With 200W RMS and 400W MAX power handling, this 4-ohm speaker delivers aggressive, detailed mids that cut through the loudest systems.
Pure Projection
Powered by a neodymium motor, the 8PRO400NMR-4 delivers 100 dB sensitivity and a focused 100 Hz–17 kHz frequency response. Sound stays sharp, present, and commanding at high volumes.
Loud and Reliable
A steel basket provides structural rigidity and a cloth surround ensures durability. Its 3” mounting depth allows for versatile installation across a wide range of applications.
Professional Performance
A 1.5” Kapton voice coil with CCAW winding ensures efficient heat dissipation and consistent power handling. The copper demodulating ring enhances clarity while reducing distortion, keeping your mids clean even under heavy demand.
Engineered to Be Heard
Designed for high-output applications, the 8PRO400NMR-4 is built for serious sound enthusiasts who demand projection, efficiency, and reliability. Available in 6”, 8”, and 6x9” options.
| Nominal Diameter | 8" / 203mm |
|---|---|
| Nominal Impedance | 4 Ohms |
| RMS Power Handling | 200W |
| MAX Power Handling | 400W |
| Sensitivity (1w/1m) | 100dB |
| Frequency Response | 100Hz-17kHz |
| Recommended High-Pass Crossover | 120Hz |
| Sold as | Single unit |
| Demodulating Rings | Copper Ring |
| Cone Shape | Curvilinear |
| Speaker Terminals | Push 16ga |
| Voice Coil Diameter | 1.5" / 38.6mm |
| Voice Coil Former Material | Kapton |
| Winding Material | CCAW |
| Cone Material | Paper |
| Dust Cap Material | Paper |
| Surround Material | Cloth |
| Leads Connection Type | Spider Crossed |
| Basket Material | Aluminum |
| Basket Color/Finish | Black |
| Magnet Material | Neodymium |
| Magnet Weight | 8 Oz |
| Equivalent Volume | 17.42L / 0.615ft3 |
| Excursion (one way) | 1.65mm |
| Free Air Resonance | 97Hz |
| Mechanical Factor | 1.530 |
| Electrical Factor | 0.27 |
| Total Factor | 0.23 |
| Mechanical Mass | 10.85g |
| Mechanical Compliance | 0.25mm/N |
| BL Factor | 5.84 |
| Voice Coil Inductance | 0.39mH |
| Cone Area | 221.67 Cm2 |
| DC Resistance | 3.6 Ohms |
| Overall Diameter | 8.1" / 206mm |
| Overall Depth | 3.3" / 84.6mm |
| Front Mount Baffle Cutout | 7" / 180mm |
| Mounting Depth | 3" / 77.5mm |
| Motor Diameter | 3.5" / 90mm |
Most products ship directly from our vendor warehouses or distributor network. Shipping times can vary depending on the brand, product size, availability, and destination.
Large or oversized items such as lift kits, wheels, tires, bumpers, exhaust systems, and audio enclosures may require additional handling time or freight shipping.
If there is ever an issue with availability, shipping cost, or delivery timing, we will contact you before moving forward with the order.
Returns may be accepted on most new, unused, unopened items within 30 days of delivery. Items must be in original packaging and in resellable condition.
Installed, used, damaged, missing-parts, electrical, special-order, clearance, or custom-built items may not be eligible for return.
Return shipping is normally the customer’s responsibility unless the return is due to our mistake, such as the wrong item being shipped.
Before sending anything back, please contact Kaos Offroad so we can review the order and provide return instructions. Returns sent without approval may be refused.
Some products are vehicle-specific. Please verify fitment before ordering. If you are unsure, contact us with your year, make, model, sub-model, and any relevant details before purchasing.
Original shipping charges, freight charges, and vendor restocking fees may be non-refundable depending on the item and supplier policy.








