NHT1259 Qtc=0.707


Driver parameters:
Qts=0.460
Fs=19.00 Hz
Vas=6.71 cu. ft
SPL=90.0 dB 1W 1m
max power=150 W RMS
Diameter=0.305 m
Xmax=0.013 m

Calculated parameters:
Vd=0.000654 m^3
n0=0.006310

Fc=29.20 Hz
F3=29.21 Hz
Vb=4.93 cu. ft
Par=0.132 acoustic W
Per=20.89 W

Thermal and Xmax limited SPL as a function of frequency:

Hz SPL thermal SPL xmax Power xmax
2.0 65.19 dB 56.62 dB 20.9 W
4.0 77.23 dB 68.67 dB 20.9 W
6.0 84.26 dB 75.71 dB 20.9 W
8.0 89.24 dB 80.71 dB 21.0 W
10.0 93.08 dB 84.58 dB 21.2 W
12.0 96.19 dB 87.75 dB 21.5 W
14.0 98.77 dB 90.43 dB 22.0 W
16.0 100.93 dB 92.75 dB 22.8 W
18.0 102.77 dB 94.79 dB 23.9 W
20.0 104.32 dB 96.62 dB 25.5 W
22.0 105.63 dB 98.28 dB 27.6 W
24.0 106.72 dB 99.79 dB 30.4 W
26.0 107.62 dB 101.18 dB 34.0 W
28.0 108.37 dB 102.47 dB 38.6 W
30.0 108.98 dB 103.67 dB 44.2 W
32.0 109.47 dB 104.79 dB 51.0 W
34.0 109.87 dB 105.84 dB 59.3 W
36.0 110.20 dB 106.84 dB 69.2 W
38.0 110.46 dB 107.77 dB 80.8 W
40.0 110.67 dB 108.67 dB 94.5 W
42.0 110.85 dB 109.51 dB 110.3 W
44.0 110.99 dB 110.32 dB 128.6 W
46.0 111.11 dB 111.09 dB 149.6 W
48.0 111.20 dB 111.83 dB 173.4 W
50.0 111.28 dB 112.54 dB 200.5 W
52.0 111.35 dB 113.22 dB 231.0 W
54.0 111.40 dB 113.88 dB 265.2 W
56.0 111.45 dB 114.51 dB 303.5 W
58.0 111.49 dB 115.12 dB 346.1 W
60.0 111.52 dB 115.71 dB 393.3 W
62.0 111.55 dB 116.28 dB 445.5 W
64.0 111.58 dB 116.83 dB 503.0 W
66.0 111.60 dB 117.37 dB 566.1 W
68.0 111.62 dB 117.88 dB 635.3 W
70.0 111.63 dB 118.39 dB 710.8 W
72.0 111.64 dB 118.88 dB 793.1 W
74.0 111.66 dB 119.35 dB 882.5 W
76.0 111.67 dB 119.82 dB 979.5 W
78.0 111.68 dB 120.27 dB 1084.4 W
80.0 111.68 dB 120.71 dB 1197.8 W
82.0 111.69 dB 121.14 dB 1319.9 W
84.0 111.70 dB 121.55 dB 1451.4 W
86.0 111.70 dB 121.96 dB 1592.6 W
88.0 111.71 dB 122.36 dB 1743.9 W
90.0 111.71 dB 122.75 dB 1906.0 W
92.0 111.72 dB 123.13 dB 2079.2 W
94.0 111.72 dB 123.51 dB 2264.1 W
96.0 111.72 dB 123.87 dB 2461.2 W
98.0 111.73 dB 124.23 dB 2671.0 W
100.0 111.73 dB 124.58 dB 2894.1 W




With this alignment the NHT1259 is Xmax limited up to 44 Hz and thermal limited past that.

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