Earthquake Magma12 Qtc=0.707


Driver parameters:
Qts=0.597
Fs=26.40 Hz
Vas=1.80 cu. ft
SPL=83.5 dB 1W 1m
max power=400 W RMS
Diameter=0.305 m
Xmax=0.019 m

Calculated parameters:
Vd=0.000958 m^3
n0=0.001413

Fc=31.26 Hz
F3=31.27 Hz
Vb=4.47 cu. ft
Par=0.372 acoustic W
Per=263.10 W

Thermal and Xmax limited SPL as a function of frequency:

Hz SPL thermal SPL xmax Power xmax
2.0 61.76 dB 59.94 dB 263.1 W
4.0 73.80 dB 71.98 dB 263.2 W
6.0 80.84 dB 79.03 dB 263.5 W
8.0 85.82 dB 84.02 dB 264.2 W
10.0 89.67 dB 87.90 dB 265.9 W
12.0 92.79 dB 91.07 dB 268.8 W
14.0 95.39 dB 93.74 dB 273.7 W
16.0 97.59 dB 96.06 dB 281.2 W
18.0 99.48 dB 98.11 dB 292.1 W
20.0 101.09 dB 99.94 dB 307.2 W
22.0 102.46 dB 101.60 dB 327.7 W
24.0 103.63 dB 103.11 dB 354.6 W
26.0 104.62 dB 104.50 dB 389.0 W
28.0 105.45 dB 105.79 dB 432.5 W
30.0 106.14 dB 106.98 dB 486.3 W
32.0 106.71 dB 108.11 dB 552.0 W
34.0 107.18 dB 109.16 dB 631.3 W
36.0 107.56 dB 110.15 dB 725.8 W
38.0 107.88 dB 111.09 dB 837.5 W
40.0 108.14 dB 111.98 dB 968.3 W
42.0 108.36 dB 112.83 dB 1120.3 W
44.0 108.53 dB 113.64 dB 1295.5 W
46.0 108.68 dB 114.41 dB 1496.4 W
48.0 108.80 dB 115.15 dB 1725.3 W
50.0 108.90 dB 115.86 dB 1984.6 W
52.0 108.99 dB 116.54 dB 2277.0 W
54.0 109.06 dB 117.19 dB 2605.1 W
56.0 109.12 dB 117.83 dB 2971.8 W
58.0 109.17 dB 118.44 dB 3379.9 W
60.0 109.21 dB 119.03 dB 3832.5 W
62.0 109.25 dB 119.59 dB 4332.7 W
64.0 109.28 dB 120.15 dB 4883.7 W
66.0 109.31 dB 120.68 dB 5488.9 W
68.0 109.33 dB 121.20 dB 6151.7 W
70.0 109.35 dB 121.70 dB 6875.6 W
72.0 109.37 dB 122.19 dB 7664.2 W
74.0 109.38 dB 122.67 dB 8521.4 W
76.0 109.40 dB 123.13 dB 9451.0 W
78.0 109.41 dB 123.58 dB 10457.0 W
80.0 109.42 dB 124.02 dB 11543.4 W
82.0 109.43 dB 124.45 dB 12714.4 W
84.0 109.44 dB 124.87 dB 13974.2 W
86.0 109.45 dB 125.28 dB 15327.4 W
88.0 109.45 dB 125.68 dB 16778.3 W
90.0 109.46 dB 126.07 dB 18331.6 W
92.0 109.46 dB 126.45 dB 19991.9 W
94.0 109.47 dB 126.82 dB 21764.2 W
96.0 109.47 dB 127.19 dB 23653.2 W
98.0 109.48 dB 127.55 dB 25664.1 W
100.0 109.48 dB 127.90 dB 27801.9 W




At this alignment the Earthquake Magma12 is barely Xmax limited up to 27 Hz and thermal limited past that.

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