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  • 8″ Midbass – 4 Ohm
  • Neodymium Magnet
  • 98 dB – 700 Watts


In stock




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 more precise midbass. Superior fidelity is achieved through a perfect combination of a non-pressed cone with a smooth frequency response and its well ventilated magnet motor specially designed to allow high displacement without increasing distortion.

8MB700FT-NDY-4 Highlight
  • 2.5″ Voice Coil – More power handling and less distortion on mid low midbass frequencies
  • Its powerful optimized neodymium motor is vented to provide excellent cooling.
  • 8″ Car audio Midbass speaker designed for Low Frequencies at High Power – 4 Ohm
  • 700 watts RMS program power gives capability of high acoustical output.
  • Also Available at 8 Ohm

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

This 8″ is a great midbass option for high SPL automotive systems, custom doors, car audio fiberglass enclosures where extremely high output is required.


This midbass will stand up to years of serious professional use! Thanks to its special composed spider reduces distortion at a high excursion and double roll surround keep cone travel linear at high excursion.

The 8MB700FT-Ndy-4 is an extremely efficient 8″ midbass from PRV Audio. Due to its wide frequency band and 98 dB sensitivity rating, this speaker is ideal for pairing with compression drivers, on 3-Way system, when used with recommended HPF using PRV Digital Signal Processor DSP

  • 95 Hz at 12 dB per octave filter Crossover / BT12
  • 85 Hz at 18 dB per octave filter Crossover / BT18

Product Highlight- RK8MB700FT-NDY

The large 2.5″ voice coil allows for the high 700 watts power handling and warrants the outstanding cooling system implemented into the motor.

Engineered with 11 mm of winding depth, this inside/outside voice coil provides excellent thermal and mechanical durability.

PRV 8″ Midbass Speaker 8MB700FT-NDY-4 700 Watts / 4 Ohm High Power Car Audio Low Frequency Neodymium Loudspeaker

Technical Details


Nominal Diameter 8″ (203 mm)
Nominal impedance 4 Ohm
Nominal Power Handling* 350 Watts
Continuous Program Power (RMS)** 700 Watts
Max Peak Power*** 1400 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
8MB700FT-NDY-4 Frequency Response
  *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 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+ Magnetic Gap Depth/4

8MB700FT-NDY-4 Frequency Response


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 WxLxH 9.05” x 9.05” x 5.11” (230 x 230 x 130 mm)
8MB700FT-NDY-4 Frequency Response
WARNING: Cancer and Reproductive Harm – our Return Policy.

Customer Reviews

Based on 47 reviews
Roosevelt Proaño
Excelente sonido

Bocina muy fuerte y calidad de sonido, quedaron perfectas, muy contento con el resultado

Awesome Mid-Bass Speakers

These speakers have more than met my expectations. They hit hard with great mid-bass and sound crystal clear at high volume. They demand power so be sure to run them with at least a 1200 watt amp. Super impressed with the sound quality and have them paired with PRV 6.5 mid-range up front in my 2022 HD Road Glide. I highly recommend them.

Eric Kempinski
Prv 8s

Love the speakers , bass is incredible and voice is clear and perfect

Bertram Davis
Love them.

I have a small motorcycle audio shop in Zachary La. and this is the best midbass driver I’ve used so far. I will definitely continue to use them.

Christopher Valentin