Ultimate UWP1880DV Qtc=0.707
Driver parameters:
Qts=0.520
Fs=27.00 Hz
Vas=11.73 cu. ft
SPL=93.0 dB 1W 1m
max power=250 W RMS
Diameter=0.457 m
Xmax=0.013 m
Calculated parameters:
Vd=0.001494 m^3
n0=0.012589
Fc=36.71 Hz
F3=36.72 Hz
Vb=13.82 cu. ft
Par=1.719 acoustic W
Per=136.55 W
Thermal and Xmax limited SPL as a function of frequency:
Hz | SPL thermal | SPL xmax | Power xmax |
---|
2.0 | 66.43 dB | 63.80 dB | 136.6 W |
4.0 | 78.47 dB | 75.84 dB | 136.6 W |
6.0 | 85.51 dB | 82.89 dB | 136.6 W |
8.0 | 90.50 dB | 87.89 dB | 136.9 W |
10.0 | 94.36 dB | 91.76 dB | 137.3 W |
12.0 | 97.51 dB | 94.93 dB | 138.1 W |
14.0 | 100.14 dB | 97.61 dB | 139.4 W |
16.0 | 102.40 dB | 99.93 dB | 141.5 W |
18.0 | 104.35 dB | 101.97 dB | 144.5 W |
20.0 | 106.06 dB | 103.80 dB | 148.6 W |
22.0 | 107.56 dB | 105.46 dB | 154.2 W |
24.0 | 108.87 dB | 106.97 dB | 161.5 W |
26.0 | 110.01 dB | 108.36 dB | 171.0 W |
28.0 | 111.01 dB | 109.65 dB | 182.8 W |
30.0 | 111.87 dB | 110.85 dB | 197.5 W |
32.0 | 112.61 dB | 111.97 dB | 215.5 W |
34.0 | 113.25 dB | 113.02 dB | 237.1 W |
36.0 | 113.79 dB | 114.01 dB | 262.9 W |
38.0 | 114.26 dB | 114.95 dB | 293.4 W |
40.0 | 114.65 dB | 115.84 dB | 329.1 W |
42.0 | 114.98 dB | 116.69 dB | 370.6 W |
44.0 | 115.26 dB | 117.50 dB | 418.5 W |
46.0 | 115.50 dB | 118.27 dB | 473.3 W |
48.0 | 115.70 dB | 119.01 dB | 535.8 W |
50.0 | 115.87 dB | 119.72 dB | 606.6 W |
52.0 | 116.01 dB | 120.40 dB | 686.5 W |
54.0 | 116.14 dB | 121.06 dB | 776.1 W |
56.0 | 116.24 dB | 121.69 dB | 876.2 W |
58.0 | 116.33 dB | 122.30 dB | 987.7 W |
60.0 | 116.41 dB | 122.89 dB | 1111.3 W |
62.0 | 116.48 dB | 123.46 dB | 1247.8 W |
64.0 | 116.53 dB | 124.01 dB | 1398.3 W |
66.0 | 116.58 dB | 124.54 dB | 1563.6 W |
68.0 | 116.62 dB | 125.06 dB | 1744.5 W |
70.0 | 116.66 dB | 125.57 dB | 1942.2 W |
72.0 | 116.69 dB | 126.05 dB | 2157.6 W |
74.0 | 116.72 dB | 126.53 dB | 2391.6 W |
76.0 | 116.75 dB | 126.99 dB | 2645.5 W |
78.0 | 116.77 dB | 127.45 dB | 2920.1 W |
80.0 | 116.79 dB | 127.89 dB | 3216.8 W |
82.0 | 116.81 dB | 128.31 dB | 3536.5 W |
84.0 | 116.82 dB | 128.73 dB | 3880.6 W |
86.0 | 116.84 dB | 129.14 dB | 4250.0 W |
88.0 | 116.85 dB | 129.54 dB | 4646.2 W |
90.0 | 116.86 dB | 129.93 dB | 5070.4 W |
92.0 | 116.87 dB | 130.31 dB | 5523.7 W |
94.0 | 116.88 dB | 130.69 dB | 6007.7 W |
96.0 | 116.89 dB | 131.05 dB | 6523.5 W |
98.0 | 116.89 dB | 131.41 dB | 7072.6 W |
100.0 | 116.90 dB | 131.76 dB | 7656.3 W |
With this alignment the Ultimate UWP1880DV is Xmax limited up to 35 Hz and
thermal limited past that.
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