Overview3-inch, finside/outside copper voice coil 400W continuous program power handling 107 dB Sensitivity in horn loaded application 300 Hz – 3 kHz Frequency range High BL neodymium design Unique aluminum sealed basket featuring vented fin heat dissipation design Calibrated back volume for a perfect time domain transient reproduction Specifications
The MR8N301 is a high efficiency, high power midrange specially designed to provide superior sound pressure level in a very compact size. The total weight is reduced to less than half of a comparable ceramic midrange thanks to an incredibly powerful neodymium magnet assembly. The unique sealed basket design doesn't require a back sealing chember, simplifying the cabinet design and improving heat dissipation. Every detail of this speaker has been optimazed to offer the best response and perfect control to the midrange frequencies.
Features General specifications
Nominal Diameter : 8 inch / 203 mm
Rated Impedance : 8 ohm
Program Power (watt) : 400 W
Power handling capacity : 200 W
Sensitivity : 102.0 dB
Frequency range : 300 - 3000 Hz
Effective piston diameter : 168 mm / 6.61 inch
Max. Excursion Before Damage : 15 mm / 0.59 inch
Minimum Impedance (ohm) : 9.8 ohm
Voice Coil Diameter : 3.0 inch / 76 mm
Voice Coil Winding Material : Aluminum
Voice Coil Length : 11 mm / 0.43 inch
Number of layers : 2
Kind of layers : inside/outside
Top Plate Thickness : 8 mm / 0.31 inch
Cone Design : Curved
Surround Material : Polycotton
Surround Design : Triple roll
Magnets : Neodymium
Spider : 01
Thiele - small parameters
Resonance frequency (Fs) : 310 Hz
DC resistance (Re) (ohm) : 6.60 ohm
Mechanical factor : 3.45 Qms
Electrical factor : 0.41 Qes
Total factor : 0.37 Qts
Bl factor (Bl) (T x m) : 17.80 T x m
Effective moving mass (Mms) : 10.0 g
Equivalent Cas air loaded (Vas) : 2.0 liters
Effective piston area (Sd) : 0.020 m2
Max. linear excursion (Xmax) : 4 mm
Voice coil inductance @ 1kHz (Le1k) : 1.16 mH
Half-space efficency (Eff) : 12.80%
Mounting information
Overall diameter : 238 mm / 9.37 inches
Bolt circle diameter : 220 mm / 8.66 inch
Bolt hole diameter : 7 mm / 0.28 inch
Front mount baffle cut-out : 202 mm / 7.95 inch
Rear mount baffle cut-out : 187 mm / 7.36 inch
Volume occupied by the driver : 2 liters / 0.08 ft3
Standard compliance
Safety agency : CE compliant
Size / Weight
Height : 111 mm / 4.37 inches
Diameter : 208 mm / 8.19 inches
Weight : 3.31 kg / 7.3 lbs
Shipping information
Package Height : 150 mm / 5.91 inches
Package Width : 240 mm / 9.45 inches
Package Depth : 240 mm / 9.45 inches
Package Weight : 3.77 kg / 8.31 lbs
