Reply to thread

Message

<blockquote data-quote="sweety" data-source="post: 6576483" data-attributes="member: 618017">Hi all<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile&nbsp; &nbsp; :)" loading="lazy" data-shortname=":)" /> I&#039;m about to build my first box as the box I bought i&#039;ve found out is a bit to small at 28L. The sub I&#039;ve got is a JBL GT3-12 which i&#039;ve found on the net should have either a 40L sealed or 50L ported but thought I would ask you guy&#039;s the spec&#039;s for the sub are as followsJBL GT3-12 12&quot;RMS Power Handling:225WPeak Power:1800WVoice-Coil Diameter:50mmMounting Depth:155mmQes:0.6Qms:5.53Qts:0.54Vas:100.45 ltrFs:28HzPe:225watt rmsFrequency Response:35Hz - 3kHzSensitivity:89dBImpedance:4 OhmsAt the minute I have a wedge shaped box which fits perfectly against the back seat so would like the new box to be of the same shape. The room I have for the box to take up is 41&quot; wide, 16.5&quot; high &amp;amp; 12-13.3&quot; depth can put up the size of the box I have at the minute if it helps<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite11" alt=":rolleyes:" title="Roll eyes&nbsp; &nbsp; :rolleyes:" loading="lazy" data-shortname=":rolleyes:" /> Ideally I would like a ported box if it&#039;s possible but have know idea on size of port(s) to use. I listen mainly to dance music &amp;amp; rock if that helps.I would be most grateful with any help &amp;amp; possible design with measurement if you canMany thank</blockquote>

[QUOTE="sweety, post: 6576483, member: 618017"] Hi all:) I'm about to build my first box as the box I bought i've found out is a bit to small at 28L. The sub I've got is a JBL GT3-12 which i've found on the net should have either a 40L sealed or 50L ported but thought I would ask you guy's the spec's for the sub are as follows JBL GT3-12 12" RMS Power Handling:225W Peak Power:1800W Voice-Coil Diameter:50mm Mounting Depth:155mm Qes:0.6 Qms:5.53 Qts:0.54 Vas:100.45 ltr Fs:28Hz Pe:225watt rms Frequency Response:35Hz - 3kHz Sensitivity:89dB Impedance:4 Ohms At the minute I have a wedge shaped box which fits perfectly against the back seat so would like the new box to be of the same shape. The room I have for the box to take up is 41" wide, 16.5" high & 12-13.3" depth can put up the size of the box I have at the minute if it helps:rolleyes: Ideally I would like a ported box if it's possible but have know idea on size of port(s) to use. I listen mainly to dance music & rock if that helps. I would be most grateful with any help & possible design with measurement if you can Many thank [/QUOTE]

Verification