evermaxx Posted October 21, 2014 Report Share Posted October 21, 2014 So I decided to give my girls car some attention. It's going to be one 12" firing into the car. since the seats won't always be down, how far should I build it from the back seat? And is there a sub/port orientation on what's louder? Looking for all inputs as, this will be the first box I've done with the box firing forward. Thanks guys! Team Subsonic Lows Get your garbage EMF products of my amp bitch Man....it makes a nice work bench Link to comment Share on other sites More sharing options...
KenSchoen Posted October 21, 2014 Report Share Posted October 21, 2014 Are you asking the best box to do? Or asking about sealed boxes in the trunk? Link to comment Share on other sites More sharing options...
evermaxx Posted October 21, 2014 Author Report Share Posted October 21, 2014 Best box for a sealed off trunk box. Meaning, box sealed from trunk, ported. Team Subsonic Lows Get your garbage EMF products of my amp bitch Man....it makes a nice work bench Link to comment Share on other sites More sharing options...
KenSchoen Posted October 21, 2014 Report Share Posted October 21, 2014 Sorry for the confusion I'm having some trouble nailing down what you mean. Ported box with sub and port facing the front of the vehicle....the sealing off the trunk to avoid cancellation? Link to comment Share on other sites More sharing options...
evermaxx Posted October 21, 2014 Author Report Share Posted October 21, 2014 Yes lol. Sorry, first post may have been confusing. About to re word it Team Subsonic Lows Get your garbage EMF products of my amp bitch Man....it makes a nice work bench Link to comment Share on other sites More sharing options...
KenSchoen Posted October 21, 2014 Report Share Posted October 21, 2014 Well idk exactly what that sub needs but if it was me I'd build about 2.25 cubic ft and use a 4 inch precision flared port. After that the hard part is sealing the space between the box and the trunk as well as sealing the rear deck so no air can pass between them. Also if it was me I'd tune to about 32hz Link to comment Share on other sites More sharing options...
evermaxx Posted October 21, 2014 Author Report Share Posted October 21, 2014 Not looking for design lol. Looking for what's best as in sub/port orientation & how far back I should build the box as the seats won't always be down. Team Subsonic Lows Get your garbage EMF products of my amp bitch Man....it makes a nice work bench Link to comment Share on other sites More sharing options...
reedal Posted October 21, 2014 Report Share Posted October 21, 2014 If it's sealed from the trunk, sub forward port forward into cab, and with the seats up, have the box positioned at least the width of the port from the back of the seat. Seat back is usually a little angled, so say four inch wide port, highest point of the port should be where you measure four inches from the back of the seat. Good rule of thumb on that from what I've seen SMD Tool Map https://www.stevemeadedesigns.com/board/topic/193176-smd-tool-map-new-november-2014/ Build log https://www.stevemeadedesigns.com/board/topic/197217-reeds-03-tahoe-hat-sqaq-singer-xs-shca-cockbox-80prs/?page=32 Link to comment Share on other sites More sharing options...
AstoSoup Posted October 21, 2014 Report Share Posted October 21, 2014 Having the sub and port firing directly into the seat back is a very similar effect of a bandbass box. Too close, it could damage the sub and too far away, there's output loss. The top of the box usually rests about 2" back from the top outer edge of the rear deck, on most applications I have seen. I would check out a few trunk wall build logs around the forums and see how far they put their port/subs from the seats. If in doubt, I would definitely go a little further than a little closer. Have seen cones get ripped to shreds in bandpass's due to the loading wall being too close. Head Unit - Clarion VX709 7" DVD Touchscreen Mid/Highs - Front Doors - RF Prime 6.5" component mids. A. Pillars - RF Punch component tweets. B. Pillars - RF Prime component tweets. Rear Doors - RF Punch 5.25" mids. RF Punch 3-way passive X-overs. Mid/Highs Amp - MB Quart Onyx 360.4, 4 channel, 640W RMS. Subs - (2) PowerBass 3XL 15, 1000w RMS, 3" flat wound coil, 562oz motor, 10" spider. Sub Amp - Audiopipe GD6001 @.5ohm, clamped 2825RMS. Box - 9.6 cu^3 net @35Hz, three 6" aero's. Charging - Energizer 120Ah AGM under the hood, MaxLife 75Ah in the rear. Big 3, 140A aftermarket alt. (off brand) Wires - Two JL Audio 2/0ga OFC. runs to rear, 4ga. power/2ga. ground to component amp (OFC), 1/0ga. OFC Knu Konceptz Kolossus Kandy everywhere else. Link to comment Share on other sites More sharing options...
evermaxx Posted October 21, 2014 Author Report Share Posted October 21, 2014 Yeah, I'm trying to see what will work best since she won't have her seats down all the time..8/10 times they are down, but usually with what she has now, just half the seat down since its subs back port back. Team Subsonic Lows Get your garbage EMF products of my amp bitch Man....it makes a nice work bench Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.