Ultimate PW1550 Qtc=0.707
Driver parameters:
Qts=0.390
Fs=20.00 Hz
Vas=14.35 cu. ft
SPL=97.0 dB 1W 1m
max power=210 W RMS
Diameter=0.457 m
Xmax=0.013 m
Calculated parameters:
Vd=0.001436 m^3
n0=0.031623
Fc=36.26 Hz
F3=36.26 Hz
Vb=6.28 cu. ft
Par=1.512 acoustic W
Per=47.82 W
Thermal and Xmax limited SPL as a function of frequency:
Hz | SPL thermal | SPL xmax | Power xmax |
---|
2.0 | 69.89 dB | 63.46 dB | 47.8 W |
4.0 | 81.93 dB | 75.50 dB | 47.8 W |
6.0 | 88.97 dB | 82.55 dB | 47.9 W |
8.0 | 93.96 dB | 87.54 dB | 47.9 W |
10.0 | 97.82 dB | 91.42 dB | 48.1 W |
12.0 | 100.96 dB | 94.59 dB | 48.4 W |
14.0 | 103.60 dB | 97.27 dB | 48.9 W |
16.0 | 105.85 dB | 99.59 dB | 49.6 W |
18.0 | 107.80 dB | 101.63 dB | 50.7 W |
20.0 | 109.50 dB | 103.46 dB | 52.3 W |
22.0 | 110.99 dB | 105.12 dB | 54.3 W |
24.0 | 112.29 dB | 106.63 dB | 57.0 W |
26.0 | 113.43 dB | 108.02 dB | 60.5 W |
28.0 | 114.41 dB | 109.31 dB | 64.9 W |
30.0 | 115.26 dB | 110.51 dB | 70.3 W |
32.0 | 115.99 dB | 111.63 dB | 76.9 W |
34.0 | 116.62 dB | 112.68 dB | 84.8 W |
36.0 | 117.15 dB | 113.67 dB | 94.3 W |
38.0 | 117.60 dB | 114.61 dB | 105.6 W |
40.0 | 117.98 dB | 115.50 dB | 118.7 W |
42.0 | 118.30 dB | 116.35 dB | 134.0 W |
44.0 | 118.57 dB | 117.16 dB | 151.6 W |
46.0 | 118.80 dB | 117.93 dB | 171.8 W |
48.0 | 119.00 dB | 118.67 dB | 194.8 W |
50.0 | 119.16 dB | 119.38 dB | 220.9 W |
52.0 | 119.30 dB | 120.06 dB | 250.2 W |
54.0 | 119.42 dB | 120.72 dB | 283.2 W |
56.0 | 119.52 dB | 121.35 dB | 320.1 W |
58.0 | 119.60 dB | 121.96 dB | 361.1 W |
60.0 | 119.68 dB | 122.55 dB | 406.6 W |
62.0 | 119.74 dB | 123.12 dB | 456.9 W |
64.0 | 119.80 dB | 123.67 dB | 512.2 W |
66.0 | 119.84 dB | 124.20 dB | 573.1 W |
68.0 | 119.88 dB | 124.72 dB | 639.7 W |
70.0 | 119.92 dB | 125.22 dB | 712.4 W |
72.0 | 119.95 dB | 125.71 dB | 791.7 W |
74.0 | 119.98 dB | 126.19 dB | 877.9 W |
76.0 | 120.00 dB | 126.65 dB | 971.3 W |
78.0 | 120.02 dB | 127.10 dB | 1072.4 W |
80.0 | 120.04 dB | 127.54 dB | 1181.6 W |
82.0 | 120.06 dB | 127.97 dB | 1299.3 W |
84.0 | 120.07 dB | 128.39 dB | 1425.9 W |
86.0 | 120.09 dB | 128.80 dB | 1561.9 W |
88.0 | 120.10 dB | 129.20 dB | 1707.7 W |
90.0 | 120.11 dB | 129.59 dB | 1863.8 W |
92.0 | 120.12 dB | 129.97 dB | 2030.7 W |
94.0 | 120.13 dB | 130.35 dB | 2208.8 W |
96.0 | 120.13 dB | 130.71 dB | 2398.7 W |
98.0 | 120.14 dB | 131.07 dB | 2600.8 W |
100.0 | 120.15 dB | 131.42 dB | 2815.6 W |
With this alignment the Ultimate PW1550 is Xmax limited up to 50 Hz and thermal
limited past that.
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