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(3 customer reviews)
In stock
  • 8″ Mid Bass – 4 Ohms
  • Neodymium Magnet
  • 98 dB – 700 Watts


In stock


SKU: 8MB700FT-NDY-4 Categories: , , Tags: , ,


PRV Audio’s 8MB700FT-NDY-4 Forte Series was specially tailored to give you more power handling and less distortion. The larger voice coil ensures high heat dissipation and the necessary Bl to deliver high sensitivity even on high power with the minimum distortion.

The lower Qts allows for more precise mid-bass. Superior fidelity is achieved through a perfect combination of a non-pressed cone with a smooth frequency response and a surrounding ring specially designed to allow high displacement without increasing the distortion.



  • Nominal Impedance: 4 Ohms
  • Rated AES Power Handling (RMS): 350 Watts
  • Program Power: 700 Watts
  • Sensitivity (1W/1m): 98 dB
  • Voice Coil Diameter: 2.5″ (51 mm)

To get superior fidelity, the special composite cone is built with non-pressed paper for a reduced break-up, delivering a smooth frequency response and a low moving mass, increasing the efficiency of the speaker.


The 8MB700FT-NDY-4 is an extremely efficient 8″ mid-bass from PRV Audio. This driver is perfect for mating to compression drivers due to its wide frequency bandwidth and its high 98 dB sensitivity rating, on a 3-way system (with a suggested 95 Hz, 12 dB/octave high pass filter in place)!

Its powerful optimized neodymium motor is vented to provide excellent cooling.

Product Highlight- RK8MB700FT-NDY

 The large 2.5″ voice coil allows for the high 350-watts power handling and warrants the outstanding cooling system implemented into the motor.

The high sensitivity rating of 98 dB 1W/1M makes it capable of generating a lot of output!

WARNING: Cancer and Reproductive Harm –


Technical Details


Nominal Diameter 8″ (203 mm)
Nominal impedance 4 Ohms
Rated AES Power Handling (RMS) 350 Watts
Program Power 700 Watts
Sensitivity 2.83V at 1m 98 dB
Recommended Hi Pass Crossover**
**For Full Power Handling
95 Hz**
**12db Per Octave Crossover
Frequency Response at -10dB 70 – 5,600 Hz
Voice Coil Diameter 2.5″ (63 mm)
Voice Coil Wire CCAW
Voice Coil Winding Depth 11.5 mm
Former Material Fiber Glass
Magnetic Gap Depth 8.00 mm
Frame Material Die Cast Aluminum



Equivalent Volume Vas 24.97 l
Excursion (mathematical)*** Xmax 3.75 mm
Free Air Resonance Fs 59.6 Hz
Mechanical Factor Qms 3.81
Electrical Factor Qes 0.24
Total Factor Qts 0.22
Cone Area Sd 249 cm²
Mechanical Mass Mms 24.67 g
Bl Factor Bl 11.30 Tm
Dc Resistance Re 3.3 Ohms
Inductance Le 0.266 mH at 1 kHz
Mechanical Mass Without Air Mmd 22.45 g
Mechanical Compliance Cms 0.288 mm/N

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


Overall Diameter 8.20” (208.5 mm)
Front Mount Baffle Cutout 7.30” (185.5 mm)
Mounting Depth 3.66” (93 mm)
Overall Depth 4.00” (101.5 mm)
Net Weight 4.32 Lbs (1.96 kg)
Shipping Weight 5.51 Lbs (2.50 kg)
Carton Dimensions W x L x H 9.05” x 9.05” x 5.11”
(230 x 230 x 130 mm)


Customer questions & answers

  1. 0 votes
    Q Will a set of these work well with a 800.4 2 ohm amplifier? answer now
    Asked by Amalk on March 14, 2020 10:28 pm
    Answered by the admin

    Most likely it will not be the power they need. If you are going to be running 2 of them, in parallel and bridge one side of the amplifier you are only going to be giving them 200w each. Give it a try as it may work well for you. Then if you need more power you can always upgrade the amplifier. 

  2. 0 votes
    Answered by the admin

    We recommend to cross them on the HPF at 95hz for full power handling. 

  3. 0 votes
    Answered by the admin

    I recommend this 8MB700FT-NDY-4. 

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3 reviews for 8MB700FT-NDY-4

  1. Joe U.

    This speaker is awesome! I just added the much needed bass my system was lacking.

  2. Leonard

  3. Lester D.

    Very good experience

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Repair Parts

Recone Kit for 8MB700FT-NDY-4 Loudspeaker