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Adding port length ..?
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<blockquote data-quote="shredder2" data-source="post: 8652354" data-attributes="member: 674047"><p>Unless you got parameters... I cannot help and stand behind it. I looked at a 18 Btl neo in 7ft3 net and I liked around 100in2 of port about 33" long to get it to around 30hz. That said, I'm not even sure what yours is gonna model up at for your power... I erred on the high side of port area as it looks like that driver can take quite a bit more power than you got... good luck</p><p></p><p>Edit....</p><p></p><p>is this it?</p><p></p><p>Fi btl d2 18" ufo</p><p></p><p>FI BTL D2 18"</p><p></p><p>2500 W. RMS, 1.4 Ohn Coils</p><p></p><p>DUAL 2</p><p></p><p>Fs: 33.6</p><p></p><p>HzRe: 1.4 Ohms</p><p></p><p>coilQms: 8.28</p><p></p><p>Qes:.32</p><p></p><p>Qts: .31</p><p></p><p>Mms: 344g</p><p></p><p>Sd: 1210cm</p><p></p><p>^2Vas: 133.8</p><p></p><p>Spl: 93.8dB 1W</p><p></p><p>1mBl: 25.1 N/A</p><p></p><p>AXmax: 28mm</p><p></p><p>Rms: 2500W</p><p></p><p>Sealed box: N/A</p><p></p><p>cuftPorted box:4.5-8.0cuftSub</p><p></p><p>OD: 18.500”Cut</p><p></p><p>ID: 16.750”</p><p></p><p>Mounting depth: 11.125”</p><p></p><p>Displacement: 0.18cuft</p><p></p><p>Looks pretty much the same to me modeling it up... it'll take a bigger amp for sure to get it near rated</p></blockquote><p></p>
[QUOTE="shredder2, post: 8652354, member: 674047"] Unless you got parameters... I cannot help and stand behind it. I looked at a 18 Btl neo in 7ft3 net and I liked around 100in2 of port about 33" long to get it to around 30hz. That said, I'm not even sure what yours is gonna model up at for your power... I erred on the high side of port area as it looks like that driver can take quite a bit more power than you got... good luck Edit.... is this it? Fi btl d2 18" ufo FI BTL D2 18" 2500 W. RMS, 1.4 Ohn Coils DUAL 2 Fs: 33.6 HzRe: 1.4 Ohms coilQms: 8.28 Qes:.32 Qts: .31 Mms: 344g Sd: 1210cm ^2Vas: 133.8 Spl: 93.8dB 1W 1mBl: 25.1 N/A AXmax: 28mm Rms: 2500W Sealed box: N/A cuftPorted box:4.5-8.0cuftSub OD: 18.500”Cut ID: 16.750” Mounting depth: 11.125” Displacement: 0.18cuft Looks pretty much the same to me modeling it up... it'll take a bigger amp for sure to get it near rated [/QUOTE]
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Adding port length ..?
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