Tekton KB 21 Qtc=0.707



Driver parameters:
Qts=0.302
Fs=12.00 Hz
Vas=53.96 cu. ft
SPL=92.0 dB 1W 1m
max power=400 W RMS
Diameter=0.533 m
Xmax=0.022 m

Calculated parameters:
Vd=0.003386 m^3
n0=0.010000

Fc=28.09 Hz
F3=28.10 Hz
Vb=12.04 cu. ft
Par=3.029 acoustic W
Per=302.94 W

Thermal and Xmax limited SPL as a function of frequency:

Hz SPL thermal SPL xmax Power xmax
2.0 72.12 dB 70.91 dB 303.0 W
4.0 84.16 dB 82.95 dB 303.1 W
6.0 91.19 dB 90.00 dB 303.6 W
8.0 96.17 dB 94.99 dB 304.9 W
10.0 100.01 dB 98.87 dB 307.8 W
12.0 103.10 dB 102.04 dB 313.1 W
14.0 105.66 dB 104.71 dB 321.7 W
16.0 107.81 dB 107.03 dB 334.9 W
18.0 109.61 dB 109.08 dB 354.1 W
20.0 111.12 dB 110.91 dB 380.9 W
22.0 112.39 dB 112.57 dB 417.0 W
24.0 113.43 dB 114.08 dB 464.4 W
26.0 114.28 dB 115.47 dB 525.4 W
28.0 114.98 dB 116.76 dB 602.1 W
30.0 115.54 dB 117.95 dB 697.1 W
32.0 115.99 dB 119.08 dB 813.2 W
34.0 116.36 dB 120.13 dB 953.2 W
36.0 116.65 dB 121.12 dB 1120.2 W
38.0 116.88 dB 122.06 dB 1317.5 W
40.0 117.07 dB 122.95 dB 1548.5 W
42.0 117.23 dB 123.80 dB 1816.9 W
44.0 117.35 dB 124.61 dB 2126.4 W
46.0 117.45 dB 125.38 dB 2481.2 W
48.0 117.54 dB 126.12 dB 2885.4 W
50.0 117.61 dB 126.83 dB 3343.5 W
52.0 117.66 dB 127.51 dB 3859.9 W
54.0 117.71 dB 128.17 dB 4439.4 W
56.0 117.75 dB 128.80 dB 5087.1 W
58.0 117.79 dB 129.41 dB 5808.0 W
60.0 117.82 dB 130.00 dB 6607.4 W
62.0 117.84 dB 130.57 dB 7490.9 W
64.0 117.86 dB 131.12 dB 8464.2 W
66.0 117.88 dB 131.65 dB 9533.1 W
68.0 117.90 dB 132.17 dB 10703.7 W
70.0 117.91 dB 132.67 dB 11982.3 W
72.0 117.92 dB 133.16 dB 13375.3 W
74.0 117.93 dB 133.64 dB 14889.4 W
76.0 117.94 dB 134.10 dB 16531.3 W
78.0 117.95 dB 134.55 dB 18308.1 W
80.0 117.95 dB 134.99 dB 20227.0 W
82.0 117.96 dB 135.42 dB 22295.3 W
84.0 117.97 dB 135.84 dB 24520.6 W
86.0 117.97 dB 136.25 dB 26910.6 W
88.0 117.98 dB 136.65 dB 29473.4 W
90.0 117.98 dB 137.04 dB 32216.9 W
92.0 117.98 dB 137.42 dB 35149.6 W
94.0 117.99 dB 137.79 dB 38279.9 W
96.0 117.99 dB 138.16 dB 41616.5 W
98.0 117.99 dB 138.52 dB 45168.3 W
100.0 117.99 dB 138.87 dB 48944.3 W




With this alignment the Tekton KB 21 is barely Xmax limited up to 20 Hz and thermal limited past that.

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