PRV Audio

PRV Audio 8MR400A Speakers

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  • Regular price $46.95
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PRV Audio’s Alto Series were carefully crafted and voiced to reproduce a natural, smooth sound while remaining dynamic. To get the superior fidelity, a special composite cone is built with non-pressed paper (visible on the back side) for reduced break-up, smooth frequency response and to keep the moving mass low, increasing the efficiency.

The 8MR400A delivers outstanding vocal reproduction with high output. It provides extended frequency response and smooth sound with very low distortion. Handling up to 200 watt RMS and with 94 dB sensitivity this midrange will be right at home in any home, automotive, or professional high SPL design.


Technical Details


Nominal Diameter 8″ (203 mm)
Nominal impedance 8 Ohms
Rated AES Power Handling (RMS) 200 Watts
Program Power 400 Watts
Sensitivity 2.83V at 1m 94 dB
Recommended Hi Pass Crossover**
**For Full Power Handling
260 Hz**
**12db Per Octave Crossover
Frequency Response at -10dB 80 – 8,500 Hz
Voice Coil Diameter 1.5″ (38 mm)
Voice Coil Wire CCAW
Voice Coil Winding Depth 8.8 mm
Former Material Kapton
Magnetic Gap Depth 5.5 mm
Frame Material Stamped Steel



Equivalent Volume Vas 22.19 l
Excursion (mathematical)*** Xmax 3.00 mm
Free Air Resonance Fs 79.14  Hz
Mechanical Factor Qms 10.79
Electrical Factor Qes 0.97
Total Factor Qts 0.89
Cone Area Sd 243 cm²
Mechanical Mass Mms 15.1 g
Bl Factor Bl 6.8 Tm
Dc Resistance Re 6.1 Ohms
Inductance Le 0.2 mH at 1 kHz
Mechanical Mass Without Air Mmd 12.91 g
Mechanical Compliance Cms 0.268 mm/N

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


Overall Diameter 8.22″ (209 mm)
Front Mount Baffle Cutout 7.12″ (181 mm)
Mounting Depth 3.52″ (89.5 mm)
Overall Depth 3.7″ (96 mm)
Net Weight 4.41 Lbs (2.00 kg)
Shipping Weight 4.84 Lbs (2.20 kg)
Carton Dimensions W x L x H 9.25″ x 9.00″ x 4.9″
(235 x 229x 125 mm)