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  • 8″ Midrange – 4 Ohm
  • Waterproof Carbon Fiber
  • 95 dB – 400 Watts


In stock


SKU: MT8MR400CF-NDY-4 SLIM Categories: , Tags: , ,



PRV Audio is proud to present our new MOTO Series (MT), high performance PRO audio line dedicated for motorsports installations, focused on bringing to you the latest innovative materials and components to resist weather conditions and to provide the highest sound reproduction possible.

This 8″ shallow midrange loudspeaker established the new benchmark for vocal reproduction for outdoor applications, making it ideal for improving the sound system in your boat, UTV, 4 wheeler, Slingshot or Motorcycle. Due to the premium materials used in its construction, such as a carbon fiber cone, a high-temperature voice coil, and a strong neodymium magnet motor, this speaker produces its natural sound with remarkably low distortion.

  • Water Resistant Speaker with true PRO audio Midrange Performance
  • Number one choice for Motorcycle bag lids application and Slingshot pods because of its lightweight and compact design
  • Carbon Fiber Cone with Coated Suspension to Handle Outdoor Applications
  • Full Range Sound, its Low inductance Technology extends its frequency response up to 12,000 Hz
  • Built for Compact Applications with only 2.50′′ of mounting depth Without Sacrificing Quality or Performance
  • Grill and screws are included. Also available in 6.5″ – MT6MR400CF-NDY-4 SLIM

Aside from its attractive appearance, this carbon fiber cone is exceptionally light, surprisingly rigid, and provides great damping to keep narrow peaks under control. Despite its extremely compact design, our technical team was able to achieve precision in the vocal reproduction range, resulting in the famous PRV audio PRO Audio sound.

A special treated surround and flat spider suspend the cone and keep it linear through the limits of excursion with minimal restriction, further improving dynamics and transients.


This midrange features many premium components, one of which is stitched lead wires, which connect the voice coil to the terminals through a single layer spider suspension, all being driven by a copper-clad aluminum wire voice coil providing high efficiency and excellent power handling, complemented by a high strength neodymium motor that immerses the voice coil in a strong magnetic field.

You can expect excellent off-axis and transient response from this water-resistant speaker for a great, controlled sound, making an easy transition to a super tweeter.

Built for loud, clear vocal performance in tight, compact spaces, PRV Audio’s MT8MR400CF-NDY-4 SLIM midrange features a sensitivity of 95 dB (2.00V/1m) and weighs about 1.63 pounds! 4 ohm impedance. MOTO Series is dedicated to delivering outstanding pro audio performance to your motorsports application.

Everything about this speaker has been designed for reliable and consistent high output levels in a wide frequency bandwidth between 120 and 12,000 Hz, giving you the option of eliminating the need for a super tweeter on your system!

PRV 8″ Carbon Fiber Motorcycle Speaker MT8MR400-NDY-4 SLIM Water Resistant Neodymium Midrange 400 Watts / 4 Ohm

Technical Details


Nominal Diameter 8″ (203 mm)
Nominal impedance 4 Ohm
Nominal Power Handling* 200 Watts
Continuous Program Power (RMS)** 400 Watts
Max Peak Power*** 800 Watts
Sensitivity 2.00V at 1m 95 dB
Recommended Hi Pass Crossover *For Full Power Handling 120 Hz* *12db Per Octave Crossover
Frequency Response 110 – 13,500 Hz
Voice Coil Diameter 1.5″ (38 mm)
Voice Coil Wire CCAW
Voice Coil Winding Depth 10.0 mm
Former Material Kapton
Magnetic Gap Depth 6.0 mm
Frame Material Stamped Steel
PRV Audio -MT8MR400CF-NDY-4 SLIM - Graphic
  *Nominal power handling is defined as the maximum RMS power that the speaker can handle in a 2-hour test with a pink noise with 6dB of crest factor and a bandpass filter with 12db/oct tuned in its usable frequency range. **Continuous Program Power (RMS) is the maximum power that the speaker can handle considering a regular musical program using our recommended filters, this power can be used to define the optimum amplifier power to avoid a clean signal without clipping or saturation. ***Max Peak Power is the maximum power operation for the speaker, this power is allowed just for a few fractions of a second, usually found just on the peaks of the music. Keeping this power for a little longer timer will damage the speaker.


Equivalent Volume Vas 9.45 l
Excursion Xmax*** 3.50 mm
Free Air Resonance Fs 111.3 Hz
Mechanical Factor Qms 9.07
Electrical Factor Qes 0.88
Total Factor Qts 0.80
Cone Area Sd 227 cm²
Mechanical Mass Mms 15.6 g
Bl Factor Bl 6.49 Tm
Dc Resistance Re 3.4 Ohm
Inductance Le 0.104 mH at 1 kHz
Mechanical Mass Without Air Mmd 13.63 g
Mechanical Compliance Cms 0.131 mm/N

***Xmax=(Voice coil winding depth-Magnetic Gap depth)/2+ Mgnetic Gap Depth/4

PRV Audio -MT8MR400CF-NDY-4 SLIM - Impedance


Overall Diameter 8.23″ (209 mm)
Front Mount Baffle Cutout 7.11″ (180.5 mm)
Mounting Depth 2.50″ (63.5 mm)
Overall Depth (with grill) 3.68″ (93.5 mm)
Net Weight 2.07 Lbs (0.94 kg)
Shipping Weight 2.87 Lbs (1.3 kg)
Carton Dimensions W x L x H 10.35″ x 9.92″ x 4.48″ (263 x 252 x 114 mm)
PRV Audio -MT8MR400CF-NDY-4 SLIM - Loudspeaker
PRV Audio -MT8MR400CF-NDY-4 SLIM - Grill
WARNING: Cancer and Reproductive Harm – our Return Policy.

Customer Reviews

Based on 1 review
Robert Abshire
Amazing speaker

Very crisp sound


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