CURRENT PRODUCTS BACK
SPECIFICATIONS ------POLYMER SERIES
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207 MSG 220MSG 220HS 218HS 224HS
7" Mid/ 10" Full 10" 18" 24"
Tweeter Range Woofer Woofer Super-
Woofer
mi 222
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NOMINAL IMPEDANCE (ohms) 8 6 5 5 5
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Minimum Power Recommendation (RMS) 25 25 25 25 25
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Maximum Power Recommendation (RMS) 75 75 100 200 200
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Maximum Peak Power Recommendation (RMS) 150 150 200 400 400
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Voice Coil Diameter 1" 1" 1" 1.5" 1.5"
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Length Of Wire On Voice Coil (meters) 8 (2 layers) 10 (2 layers) 10 (2 layers) 36 (4 layers) 36 (4 layers)
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Voice Coil Wire Size #33 #31 #31 #31 #31
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Voice Coil Wire Diameter .008" .010" .010" .010" .010"
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Turns Of Wire On Voice Coil 100 125 125 300 300
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Voice Coil Wire Round Copper With Custom High Temperature Baked Resin Coating
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Voice Coil Former Custom Treated Aluminum
Heat Sink Heat Sink Heat Sink
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D.C. Resistance Of Voice Coil (ohms) 5 3.8 3.8 3.4 3.4
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Voice Coil Axial Length .375" .625" .625" .750" .750"
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Electromagnetic Coupling Constant (Bl) 8.8 11 11 36 36
Newtons / Ampere
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Effective Mass Of Voice Coil, 21 38 39 126 214
Cone And Spider (grams)
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Effective Piston Diameter Of Cone 5.625" 9" 9" 15.625" 21.5"
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Maximum Peak To Peak Excursion .062" .375" .375" .750" .750"
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Free Field Resonance (Hz) 1500 28 28 17 13
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Magnet Material And Structure Custom Coated Ceramic--- D.C. Magnetized ---
Equalized Flux Module Structure (EFM)
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Total Magnet Weight 5 lbs. 5 lbs. 5 lbs. 8.5 lbs. 8.5 lbs.
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Flux Density (Weber/m2) 1.1 1.1 1.1 1 1
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Recommended Frequency Range (Hz) 3000- 20,000 32-20,000 32-5,000 16- 350 6- 150
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MM