21DM2000

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  • 21DM2000
21DM2000

21DM2000

1. 4000 W continuous program power capacity
2. 98dB Sensitivity 1w/1m
3. 36Hz ~800Hz frequency response range
4. 152mm(6") high temperature inside/outside copper voice coil 
5. Peak to peak maximum excursion of 62mm
6. Double magnets allows a very high force factor and long driver excursion
7. Triple Conex dampers to retain good mechanical properties at high power
8. BL/Re maximized for loaded applications


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技术参数
  • General Specifications

  • Nominal Diameter

    36 Hz

  • Rated Impedance

    8 ohm

  • Nominal Power handling1

    2000 Watts

  • Program Power2

    4000 Watts

  • Sensitivity(lw/lm)3

    98 dB

  • Frequency Range4

    36~800 Hz

  • Minimum Impedance(Zmin)

    7.2 ohm

  • Voice Coil Diameter

    152/6 mm/inch

  • Voice Coil Material

    Copper

  • Former Material

    Glass Fiber

  • Voice Coil Winding Depth

    34 mm

  • Number of layers

    2(inside/outside)

  • Magnet gap depth

    14 mm

  • Basket

    Cast Aluminum Cast Aluminum

  • Flux Density

    1.2 T

  • Magnet Outer Diameter/Wgt

    330/400 mm/oz
  • Thiele-Small parameters

  • Resonance frequency

    Fs 36 Hz

  • DC resistance

    Re 5.7 ohm

  • Mechanical factor

    Qms 14.1

  • Electrical factor

    Qes 0.301

  • Total factor

    Qts 0.295

  • Mechanical compliance

    Cms 0.04 mm/N

  • Mechanical resistance of suspension losses

    Rms 7.5 kg/s

  • Effective Moving Mass

    Mms 462 m

  • Half-space efficiency

    Eff 2.5 %

  • BL Factor

    BL 43.8 T.m

  • Equivalent Cas air load

    Vas 166 liters

  • Effective piston area

    Sd 0.1676 m^2

  • Max. linear excursion6

    Xmax ±13.5 mm

  • Voice coil inductance

    Le1K 2.2 mH

  • Efficiency Bandwidth Product

    EBP 120
  • Mounting Information

  • Overall Diameter

    545 mm

  • Bolt Circle Diameter

    520 mm

  • Bolt Hole Diameter

    8.5 mm

  • Baffle Cutout Diameter

    495 mm

  • Overall Depth

    234 mm

  • Net Weight

    34.4 kg

  • Shipping Weight

    35.9 kg

  • Shipping Box

    570x570x270 mm
技术参数
  • LF General Specifications

  • Nominal Diameter

    mm/inch

  • Rated Impedance

    ohm

  • Nominal Power handling1

    Watts

  • Program Power2

  • Sensitivity(lw/lm)3

  • Frequency Range4

    Hz

  • Voice Coil Diameter

    mm/inch

  • Voice Coil Material

    Copper

  • Voice Coil Winding Depth

    mm

  • Number of layers

    (inside/outside)

  • Magnet Outer Diameter/Wgt

    mm/oz
  • HF General Specifications

  • Throat Diameter

    mm/inch

  • Rated Impedance

    ohm

  • Power handling(2k~18kHz)

        Nominal2

    Watts

  •     Continuous Porgram3

    Watts

  • Sensitivity3(lw/lm,on axis)

    dB

  • Frequency Range4

    Hz

  • Voice Coil Diameter

    mm/inch

  • Voice Coil Material

    Copper

  • Diaphragm Material

    mm

  • Magnet Material

    kg
  • LF Thiele-small Parameters

  • Resonance frequency

    Fs Hz

  • DC resistance

    Re ohm

  • Mechanical factor

    Qms

  • Electrical factor

    Qes

  • Total factor

    Qts

  • Mechanical compliance

    Cms mm/N

  • Mechanical resistance of suspension losses

    Rms mech-ohm

  • Effective Moving Mass

    Mms g

  • Half-space efficiency

    Eff %

  • BL Factor

    BL T.m

  • Equivalent Cas air load

    Vas liters

  • Effective piston area

    Sd ㎡

  • Max. linear excursion5

    Xmax mm

  • Voice coil inductance

    Le1K mH

  • Efficiency Bandwidth Product

    EBP mH
  • Mounting Information

  • Overall Diameter

    mm

  • Bolt Circle Diameter

    mm

  • Bolt Hole Diameter

    mm

  • Baffle Cutout Diameter

    mm

  • Overall Depth

    mm

  • Net Weight

    kg

  • Shipping Weight

    kg

  • Shipping Box

    mm
技术参数
  • General Specifications

  • Throat Diameter

    mm/inch

  • Rated Impedance

    ohm

  • Power handling

        Nominal2

    Watts

  •     Continuous Porgram3

    Watts

  • Sensitivity4(1w/1m,on axis,on horn)

    dB

  • Frequency Range

    Hz

  • Minimum Impedance(Zmin)

    ohm

  • Voice Coil Diameter

    mm/inch

  • Voice Coil Material

  • Voice Coil Former

  • Phase Plug Material

  • Diaphragm Material

  • Flux Density

    T

  • Magnet Material

  • Mounting Information

  • Overall Diameter

    mm

  • Overall Depth

    mm

  • Net Weight

    kg

  • mounting

    4xM6 holes,90°on 102
波形图

Frequency response measured in a closed enclosure of 600L in an anechoic chamber

images/upfile/21DM2000-CURVES.jpg

Computer predicted low frequency response

images/upfile/21DM2000-PREDICTED.jpg

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