Tekton KB 18 Qtc=0.707


Driver parameters:
Qts=0.300
Fs=12.00 Hz
Vas=31.43 cu. ft
SPL=89.0 dB 1W 1m
max power=300 W RMS
Diameter=0.457 m
Xmax=0.019 m

Calculated parameters:
Vd=0.002149 m^3
n0=0.005012

Fc=28.28 Hz
F3=28.28 Hz
Vb=6.90 cu. ft
Par=1.253 acoustic W
Per=249.97 W

Thermal and Xmax limited SPL as a function of frequency:

Hz SPL thermal SPL xmax Power xmax
2.0 67.75 dB 66.96 dB 250.0 W
4.0 79.79 dB 79.00 dB 250.1 W
6.0 86.83 dB 86.05 dB 250.5 W
8.0 91.81 dB 91.04 dB 251.6 W
10.0 95.64 dB 94.92 dB 253.9 W
12.0 98.74 dB 98.09 dB 258.1 W
14.0 101.30 dB 100.76 dB 265.0 W
16.0 103.45 dB 103.08 dB 275.6 W
18.0 105.26 dB 105.13 dB 291.1 W
20.0 106.78 dB 106.96 dB 312.6 W
22.0 108.05 dB 108.62 dB 341.6 W
24.0 109.10 dB 110.13 dB 379.7 W
26.0 109.97 dB 111.52 dB 428.7 W
28.0 110.67 dB 112.81 dB 490.3 W
30.0 111.24 dB 114.00 dB 566.7 W
32.0 111.70 dB 115.13 dB 660.0 W
34.0 112.07 dB 116.18 dB 772.4 W
36.0 112.37 dB 117.17 dB 906.6 W
38.0 112.61 dB 118.11 dB 1065.1 W
40.0 112.80 dB 119.00 dB 1250.7 W
42.0 112.96 dB 119.85 dB 1466.4 W
44.0 113.09 dB 120.66 dB 1715.1 W
46.0 113.19 dB 121.43 dB 2000.2 W
48.0 113.28 dB 122.17 dB 2325.0 W
50.0 113.35 dB 122.88 dB 2693.0 W
52.0 113.41 dB 123.56 dB 3107.9 W
54.0 113.46 dB 124.22 dB 3573.6 W
56.0 113.50 dB 124.85 dB 4094.0 W
58.0 113.53 dB 125.46 dB 4673.2 W
60.0 113.56 dB 126.05 dB 5315.5 W
62.0 113.59 dB 126.62 dB 6025.4 W
64.0 113.61 dB 127.17 dB 6807.4 W
66.0 113.63 dB 127.70 dB 7666.3 W
68.0 113.64 dB 128.22 dB 8606.9 W
70.0 113.66 dB 128.72 dB 9634.2 W
72.0 113.67 dB 129.21 dB 10753.5 W
74.0 113.68 dB 129.69 dB 11970.0 W
76.0 113.69 dB 130.15 dB 13289.3 W
78.0 113.70 dB 130.60 dB 14717.0 W
80.0 113.70 dB 131.04 dB 16258.7 W
82.0 113.71 dB 131.47 dB 17920.6 W
84.0 113.72 dB 131.89 dB 19708.6 W
86.0 113.72 dB 132.30 dB 21629.0 W
88.0 113.72 dB 132.70 dB 23688.1 W
90.0 113.73 dB 133.09 dB 25892.5 W
92.0 113.73 dB 133.47 dB 28248.9 W
94.0 113.74 dB 133.84 dB 30764.1 W
96.0 113.74 dB 134.21 dB 33445.0 W
98.0 113.74 dB 134.57 dB 36298.8 W
100.0 113.74 dB 134.92 dB 39332.8 W




With this alignment the Tekton KB 18 is barely Xmax limited up to 20 Hz and thermal limited past that.

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