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FR321

    • Features
    • 1. 80W continuouos program power capacity

      2. 88dB sensitivity, 1w/1m

      3. 20mm (0.8") high temperature copper clad aluminum voice coil

      4. Vented voice coil former increases airflow to provide enhanced cooling

      5. Shorting copper ring for extended HF response

      6. Strong and light fiberglass cone remains rigid to higher frequencies

      7. Ideal for compact array systems

General Specifications
Nominal Diameter 80/3 mm/inch
Rated Impedance 8 ohm
Nominal Power handling1 40 Watts
Program Power2 80 Watts
Sensitivity(lw/lm)3 88 dB
Frequency Range4 110~15k Hz
Minimum Impedance(Zmin) 7.3 ohm
Voice Coil Diameter 20/0.8 mm/inch
Voice Coil Material Copper clad aluminum
Former Material Glass Fiber
Voice Coil Winding Depth 6 mm
Number of layers 2
Magnet gap depth 4 mm
Basket Pressed Steel
Flux Density 1.2 T
Magnet Material 70/8 mm/oz
Thiele-Small parameters
Resonance frequency Hz
DC resistance Re 6.4 ohm
Mechanical factor Qms 3.5
Electrical factor Qes 0.85
Total factor Qts 0.68
Mechanical compliance Cms 0.67 mm/N
Mechanical resistance
of suspension losses
Rms 0.59 mech-ohm
Effective Moving Mass Mms 2.9 g
Half-space efficiency Eff 0.17 %
BL Factor BL 4 T.m
Equivalent Cas air load Vas 1.03 liters
Effective piston area Sd 0.0033 m2
Max.linear excursion5 Xmax 2 mm
Voice coilinductance LelK 0.1 mH
Efficiency Bandwidth Product EBP 133
Mounting Information
Overall Diameter 93 mm
Bolt Circle Diameter 84 mm
Bolt Hole Diameter 5 mm
Baffle Cutout Diameter 71 mm
Overall Depth 51 mm
Net Weight 0.48 kg(1pc)
Shipping Weight 17 kg(32pcs)
Shipping Box 400x400x145 mm