6.5” High-Sensitivity Professional Midrange Loudspeaker with Neodymium Magnet 

Powerful Projection
The 6PRO400NMR-4 is a 6.5” high-sensitivity professional mid-range built for aggressive output. With 200W RMS and 400W MAX power handling at 4 ohms, this speaker delivers strong, forward mids that cut through loud, high-output systems.

High Sensitivity 
Powered by a neodymium motor, the 6PRO400NMR-4 achieves 100 dB sensitivity with a 120Hz–17kHz frequency response. Its paper cone increases surface coverage, giving vocals and instruments more presence and projection.

Durable Construction 
The steel basket provides solid structural support for daily or high-output builds. The cloth surround ensures durability under heavy demand. With a 2.6” mounting depth, this speaker offers versatile installation across a wide range of applications.

Built for Clean Output
A 1.5” Kapton voice coil with CCAW winding improves efficiency and heat management. The integrated copper demodulating ring reduces distortion, keeping your mids tight, controlled, and competition-ready.

Designed to Be Heard
Engineered for serious sound enthusiasts, the 6PRO400NMR-4 delivers projection, efficiency, and reliability. Available in 6”, 8”, and 6x9” options to match your system’s needs.

Key Features:

• 6.5” High-Sensitivity Midrange Speaker (100 dB Output)
  
• 200W RMS / 400W Peak Power Handling
  
• Neodymium Magnet for Lightweight, High Efficiency
  
• 120 Hz–17 kHz Frequency Range for Clear Vocals
  
• Aluminum Basket with High-Performance Voice Coil

Specifications: 

• Nominal Diameter: 6.5" / 165mm
  
• Nominal Impedance: 4 Ohms
  
• RMS Power Handling: 200W
  
• MAX Power Handling: 400W
  
• Sensitivity (1w/1m): 100dB
  
• Frequency Response: 120Hz-17kHz
  
• Recommended High-Pass Crossover: 140Hz
  
• Sold in Pair or Single: Single
  
• Demodulating Rings: Copper Ring
  
• Cone Shape: Curvilinear
  
• Speaker Terminals: Push 16ga

Motor: 

• 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: Steel
  
• Basket Color/Finish: Black
  
• Magnet Material: Neodymium
  
• Magnet Weight: 8 Oz

Thiele & Small Parameters: 

• Equivalent Volume: 4.97L / 0.175ft3
  
• Excursion (one way): 1.65mm
  
• Free Air Resonance: 145Hz
  
• Mechanical Factor: 1.88
  
• Electrical Factor: 0.32
  
• Total Factor: 0.28
  
• Mechanical Mass: 8.04g
  
• Mechanical Compliance: 0.14mm/N
  
• BL Factor: 5.08
  
• Voice Coil Inductance: 0.35mH
  
• Cone Area: 156.15 Cm2
  
• DC Resistance: 3.5 Ohms

Measurement:

• Overall Diameter: 6.85" / 174mm
  
• Overall Depth: 2.9" / 74.6mm
  
• Front Mount Baffle Cutout: 5.9" / 150mm
  
• Mounting Depth: 2.6" / 67.5mm
  
• Motor Diameter: 3.5" / 90mm

Shipping Policy

DBs Car Audio is proud to offer fast & free shipping on all items listed in our store!!

Shipping Methods and Transit Times

DBs Car Audio ships orders from our Kissimmee, Florida location. On occasion, orders will be fulfilled directly by the manufacturer or distributor in order to reduce the shipping time..

Order Tracking

Once an order has been shipped, we send our customers an email with the tracking number for the order. Click on the tracking link in the email to follow the location of the package on the carrier's website. If you did not receive a tracking number by email or need to confirm the tracking information, please contact call us at 1-800-927-9390

Signature Required

Due to the valuable contents of some shipments, DBs Car Audio will only require a signature upon delivery if the order is over $500. Such guidelines will not be overruled upon the customer's request. Please understand that this is a security measure taken by our Company to ensure the safe delivery of each package and guarantee excellent service. Many of our third-party shipping carriers and payment companies require signatures upon delivery to protect against fraud and theft. Customers may request a signature upon delivery by emailing us at dbscaraudiofl@gmail.com.

Shipping Policy Disclaimer

Delivery estimates do not apply to items shipped directly from the manufacturer, nor out-of-stock items. Some items that ship from the manufacturer can only be delivered to addresses within the 48 continental states.

Standard delivery time for domestic customers will average from 2-4 business days, but can take longer in some cases. Saturday, Sunday and national holidays are not considered business days for delivery purposes.

Our Shipping Guarantee applies only to shipments delayed due to our service failure. We will not guarantee shipments that are delayed due to an act of god (ex: weather), a catastrophic event, or failure by our delivery partners. Our guarantee is also voided if incorrect billing or shipping information is given and results in your order being delayed to its destination. Our guarantee is also void if no one is available to sign for shipment when delivery attempt is made if a signature is required.