Sealed

Calculations Sealed Enclosure calculations Driver Specifications Driver Vas Qts Qes fs Xmax Dia. PEMax

v1.11

JBL 1200GTi ### litres 0.350 0.450 20.0 Hz 7.62 mm 26.42 cm 600 watts

Constants Ro c

1.18 345.00

Enclosure Specifications Desired Qtc Qr Vr Vb Fb F3

0.71 2.02 3.08 52.25 40.4 40.4

Sd Vd n0 SPL K1 K2 Amax Par Per PeakSPL

kg/m^3 Density of air at room temperature m/s Speed of sound in air

Total system Q at resonance

litres Hz Hz

5.48E-02 m^2 4.18E-04 m^3 0.003 86.4 dB/1W/1m 0.197 104.949 1.000 0.197 71 watts 114 dB

Factor

Equivalent air compliance 5.683 Total driver Q at resonance Driver electrical Q at resonance Driver resonance frequency Maximum linear excursion 0.30 Effective diameter 10.40 Thermal power rating

Net box size System resonance frequency Cutoff frequency (-3dB)

1.84

Cone surface area Volume displaced by cone at maximum linear excursion Driver efficiency Driver efficiency (in dB)

Maximum acoustic power output for system Input power required to produce Par Maximum SPL

1.11 F 40.4 10.0 11.1 12.3 13.7 15.2 16.9 18.7 20.8 23.0 25.6

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Fr 1.00 0.06 0.08 0.09 0.11 0.14 0.17 0.21 0.26 0.33 0.40

dBmag -3.0 -24.3 -22.5 -20.7 -18.9 -17.1 -15.3 -13.6 -11.9 -10.2 -8.6

SPLd 104.9 80.7 82.5 84.3 86.1 87.9 89.8 91.6 93.4 95.2 97.0

SPLt 111.2 89.9 91.7 93.5 95.3 97.1 98.9 100.6 102.3 104.0 105.6

Calculations 28.4 31.5 35.0 38.8 43.1 47.8 53.1 59.0 65.4 72.6 80.6 89.5 99.3 110.3 122.4 135.9 150.8 167.4 185.8 206.2 228.9 254.1 282.1 313.1 347.5 385.7 428.2 475.3 527.6 585.6 650.0 721.5 800.9 889.0 986.8 1095.3

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0.49 0.61 0.75 0.92 1.14 1.40 1.73 2.13 2.62 3.23 3.98 4.91 6.04 7.45 9.18 11.30 13.93 17.16 21.14 26.05 32.10 39.55 48.73 60.04 73.97 91.14 112.30 138.36 170.48 210.04 258.79 318.86 392.87 484.05 596.40 734.82

-7.1 -5.7 -4.4 -3.4 -2.5 -1.8 -1.3 -0.9 -0.6 -0.4 -0.3 -0.2 -0.1 -0.1 -0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0

98.8 100.6 102.4 104.3 106.1 107.9 109.7 111.5 113.3 115.1 116.9 118.8 120.6 122.4 124.2 126.0 127.8 129.6 131.5 133.3 135.1 136.9 138.7 140.5 142.3 144.1 146.0 147.8 149.6 151.4 153.2 155.0 156.8 158.6 160.5 162.3

107.1 108.5 109.7 110.8 111.7 112.4 112.9 113.3 113.6 113.8 113.9 114.0 114.1 114.1 114.1 114.2 114.2 114.2 114.2 114.2 114.2 114.2 114.2 114.2 114.2 114.2 114.2 114.2 114.2 114.2 114.2 114.2 114.2 114.2 114.2 114.2

Calculations

cu.ft.

in. in.

cu.ft.

ximum linear excursion

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Calculations

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Frequency Response

Frequency Response 3.0 0.0 -3.0

Output (dB)

-6.0 -9.0 -12.0 -15.0 -18.0 -21.0 -24.0 R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o w w w w ww w w w w ww w w w ww w w w ww w w w w ww w w w ww w w w ww w w w ww w w w

Frequency (Hz)

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Frequency Response

R R R R R R R R R R o o o o o o o o o wwwwwwwwww

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Power Response

Power Response 200.0

175.0

Output (dB)

150.0

Colum

125.0

Colum 100.0

75.0

50.0

1

Frequency (Hz)

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Power Response

Column F Column G

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