From PRV's Alto Series, the 8MR400A 8" midrange/mid-bass is an excellent choice for any high output sound system. PRV drivers are known for their smooth mid-range response with low distortion and this 8" is no exception. With a naturally damped paper cone and cloth accordion surround resonances are kept under control making for an easy transition to a high frequency driver. In addition, the voice coil is wound on a Kapton former with extensive venting ensuring high power handling for extended periods. 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.
Power Handling (RMS)200 Watts
Power Handling (max)400 Watts
Frequency Response80 to 8,500 Hz
Sensitivity94 dB 2.83V/1m
Voice Coil Diameter1.5"
Resonant Frequency (Fs)79 Hz
DC Resistance (Re)6.1 ohms
Voice Coil Inductance (Le)0.2 mH
Mechanical Q (Qms)10.79
Electromagnetic Q (Qes)0.97
Total Q (Qts)0.89
Compliance Equivalent Volume (Vas)0.78 ft.³
Mechanical Compliance of Suspension (Cms)0.268 mm/N
BL Product (BL)6.8 Tm
Diaphragm Mass Inc. Airload (Mms)15.1g
Maximum Linear Excursion (Xmax)1.65 mm
Surface Area of Cone (Sd)241.6 cm²
Materials of Construction
Voice Coil Wire MaterialCCA
Voice Coil FormerKapton® / Polyimide
Basket / Frame MaterialSteel
Overall Outside Diameter8.22"
Baffle Cutout Diameter7.12"
Bolt Circle Diameter7.75"
# Mounting Holes4
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)