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  • Scan Speak Illuminator 18WU/4741T-00 7" Woofer 4 Ohms

Scan Speak Illuminator 18WU/4741T-00 7" Woofer 4 Ohms

Scan Speak Illuminator 18WU/4741T-00 7" Woofer 4 Ohms
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    Code: 18WU4741T00
    Price: $389.95
    Shipping Weight: 3.00 pounds
    Quantity in Basket: None
    Quantity:

    Product Description:

    Scan-Speak Illuminator 7" Paper Cone Woofer 18WU/4741T-00

    • Under hung voice coil
    • Neodymium magnet
    • Exceptionally long linear excursion
    • paper cone
    The Illuminator woofers are based on compact under-hung motor systems with large neodymium ring magnets. The patent pending motor offers a very long linear excursion together with a very high force factor. The top plate is shaped to “guide” the backside airflow around the motor and with the very open cast aluminum chassis design the driver is virtually free from compression.

    Nominal Impedance Zn 4 ohm
    DC Resistance Re 3.2 ohm
    Voice Coil Inductance Le 0.5 mH
    TS Parameters
    Resonance Frequency fs 30 Hz
    Mechanical Q factor QMS 3.56
    Electrical Q factor QES 0.32
    Total Q factor Qts 0.29
    Force Factor Bl 6 Tm
    Mechanical Resistance Rms 1 Kg/s
    Moving Mass Mms 18.9 g
    Suspension Compliance Cms 1.49 mm/N
    Effective Piston Area sd 154 cm^2
    Equivalent Volume Vas 49.9 ltrs
    Sensitivity 2.83V/1m 87.2 dB
    Power Handling
    100h RMS noise test IEC 80 W
    Long Term Max Power IEC 18.3 150 W
    Voice Coil and Magnet Parameters
    Voice Coil Diameter 42 mm
    Voice Coil Height 8 mm
    Voice Coil Layers 4
    Height of the Gap 20 mm
    Linear Excursion +/- 6 mm
    Max mech. excursion +/- 16 mm



    Suggested alignment:
    Sealed box of 0.25 cubic feet for an F3 of 80Hz
    Vented box of 0.5 cubic feet with a 2" diameter vent by 8" long for an F3 of 55Hz
    Vented box of 0.75 cubic feet with a 2" diameter vent by 7" long for an F3 of 50Hz





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