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U8212

    • Features
    • 1. 900 W continuous program power capacity

      2. Sensitivity: 97dB 1w/1m

      3. 76mm(3") high temperature inside/outside CCAW voice coil

      4. Paper cone made in U.S.A

      5. FEA optimized magent system design for low distortion and minimum power compession

      6. M-roll polycotton edge with deep corrugations for extended Xmax

      7. Ideal for high quality compact 2 or 3-way systems

General Specifications
Nominal Diameter 300/12 mm/inch
Rated Impedance 8 ohm
Nominal Power handling1 450 Watts
Program Power2 900 Watts
Sensitivity(lw/lm)3 96.5 dB
Frequency Range4 49~3100 Hz
Minimum Impedance(Zmin) 6.9 ohm
Voice Coil Diameter 76/3 mm/inch
Voice Coil Material CCAW
Former Material Glass Fiber
Voice Coil Winding Depth 19 mm
Number of layers 4 (inside/outside)
Magnet gap depth 10 mm
Basket Cast Aluminum
Flux Density 1.1 T
Magnet Material 190/75 mm/0z
Thiele-Small parameters
Resonance frequency Hz
DC resistance Re 5.3 ohm
Mechanical factor Qms 14.4
Electrical factor Qes 0.34
Total factor Qts 0.33
Mechanical compliance Cms 0.15 mm/N
Mechanical resistance
of suspension losses
Rms 1.5 mechk-ohm
Effective Moving Mass Mms 69 g
Half-space efficiency Eff 2.14 %
BL Factor BL 18.4 T.m
Equivalent Cas air load Vas 60 liters
Effective piston area Sd 0.0543 m2
Max.linear excursion5 Xmax 7 mm
Voice coilinductance LelK 1.1 mH
Efficiency Bandwidth Product LelK 147
Mounting Information
Overall Diameter 312 mm
Bolt Circle Diameter 316 mm
Bolt Hole Diameter 6.5 mm
Baffle Cutout Diameter 383 mm
Overall Depth 145 mm
Net Weight 7.4 kg
Shipping Weight 8.1 kg
Shipping Box 345x345x180 mm