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Enclosure Design & Construction
4th. order bandpass
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<blockquote data-quote="82 cutlass" data-source="post: 7204503" data-attributes="member: 561239"><p>It's going in a 92 cadillac brougham . Going to fire through the rear deck and seal it off from the trunk . I have a lot of space to work with so adjustments shouldn't be a problem with port and tuning . As for the result i'm looking for is just some loud daily SQL .</p><p></p><p>How's this look ? The box is 1 cube bigger in both the ported and sealed side tuned to 50 hz.</p><p></p><p>Project for : you</p><p></p><p>--</p><p></p><p>Number of drivers : 3</p><p></p><p>Box type : 4th Order Bandpass</p><p></p><p>Box size : Front chamber 5.000 ft^3</p><p></p><p>Rear Chamber 4.000 ft^3</p><p></p><p>Tuning frequency : 50.00 Hz</p><p></p><p>Vent : 1 vent(s) -&gt; Front Chamber</p><p></p><p>11.99 in length for each</p><p></p><p>20.00 x 5.00 in rectangle</p><p></p><p>Relative</p><p></p><p>Freq Gain SPL</p><p></p><p>[Hz] [dB] [dB]</p><p></p><p>20.00 -15.97 110.59</p><p></p><p>25.00 -10.39 116.18</p><p></p><p>30.00 -5.03 121.53</p><p></p><p>35.00 -0.10 126.46</p><p></p><p>40.00 2.77 129.34</p><p></p><p>45.00 2.84 129.40</p><p></p><p>50.00 2.02 128.59</p><p></p><p>55.00 1.29 127.85</p><p></p><p>60.00 0.70 127.26</p><p></p><p>65.00 0.11 126.67</p><p></p><p>70.00 -0.60 125.96</p><p></p><p>75.00 -1.50 125.07</p><p></p><p>80.00 -2.58 123.99</p><p></p><p>85.00 -3.78 122.79</p><p></p><p>90.00 -5.03 121.53</p><p></p><p>95.00 -6.30 120.27</p><p></p><p>100.00 -7.53 119.04</p></blockquote><p></p>
[QUOTE="82 cutlass, post: 7204503, member: 561239"] It's going in a 92 cadillac brougham . Going to fire through the rear deck and seal it off from the trunk . I have a lot of space to work with so adjustments shouldn't be a problem with port and tuning . As for the result i'm looking for is just some loud daily SQL . How's this look ? The box is 1 cube bigger in both the ported and sealed side tuned to 50 hz. Project for : you -- Number of drivers : 3 Box type : 4th Order Bandpass Box size : Front chamber 5.000 ft^3 Rear Chamber 4.000 ft^3 Tuning frequency : 50.00 Hz Vent : 1 vent(s) -> Front Chamber 11.99 in length for each 20.00 x 5.00 in rectangle Relative Freq Gain SPL [Hz] [dB] [dB] 20.00 -15.97 110.59 25.00 -10.39 116.18 30.00 -5.03 121.53 35.00 -0.10 126.46 40.00 2.77 129.34 45.00 2.84 129.40 50.00 2.02 128.59 55.00 1.29 127.85 60.00 0.70 127.26 65.00 0.11 126.67 70.00 -0.60 125.96 75.00 -1.50 125.07 80.00 -2.58 123.99 85.00 -3.78 122.79 90.00 -5.03 121.53 95.00 -6.30 120.27 100.00 -7.53 119.04 [/QUOTE]
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4th. order bandpass
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