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» Termpro Audio Forum » Soundoff Competition » Bass Race » new 49.9 hopeful build (Page 1)

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Author Topic: new 49.9 hopeful build
Rossfreier
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well i tryed building for 39.9 before and when it was done my car was stolen so i decided just to go big this time

the plan:
daily pound and bassrace

the gear:
kenwood hu
mb quartz/clarion/lanzar 6.5 components, 1 set
1 bassworx 75.2 for the highs
2 lanzar opti 2k, one now, one more next week
4 mach 5 ixl 15s

30 8 foot 2x4s
4 4x8 sheets of mdf

I'm building a wall in the back of my buick. which made me relise why everyone uses vans or suvs.

the build has been over the last 4 days, i've taken picture all along everystep but now my phone won't work with my computer so i gotta find my camera.

the box is 23 cube feet with a 7x34.5 port tuned to 35hz center port, i'm hoping to do over a 50 with it because well i've never broken a 50 before. this is also my first wall build so its not the best.

i'm outa work atm cuz i ****ed up the ligaments in my right wrist, which is in a cast now, and well i can't sit still so this build is just flying along for me.

i'll try to get som pics up tomarow

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MrCrowley
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Awesome. Go Mach 5.

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Rossfreier
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off to a weak start.145.7 at 43 hz the original port was too big i shunk it down and gained. gonna try to get some more tweaking done tomarow try to get even higher
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MrCrowley
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That doesn't sound right for that type of power... Good luck to ya.

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boomn89
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email the pics from your phone to yourself thru text messaging.

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TEAM GORILLA AUDIO

2005 SLAP FINALS 3rd place SS2
2005 IASCA FINALS 1st place adv. 2
2005 MECA FINALS 2nd place M-7
2006 received an A$$ kicking
2007 4th(at indy) Street B
2008 taking a vacation
2009 still on vacation


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Rossfreier
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i'm only runnin 1 amp at 1 ohm right now tho. it isn't sealed to the b-piller so i'm goin to try and get that done today
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Rossfreier
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well so far no real change... i burped it without me in the car and lost .5 db... so i'm sealling it up just waiting for all the foam to cure. i'm gonna change to port and see if i can gain somewhere... but this is just my luck
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Rossfreier
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sealed it... gain .16 db... after ****in with port legth i'm at 146.32 at 40hz gonna try makin the port wider tomarow, but i gain 3 db if i open the drivers door lol
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dB Don
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what are the box specs right now and can you post pics of the build?

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Rossfreier
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18.3 cubes before subs.

i was told that i screwed up the baffles and to lowed the top sub and push it all the way to the outside edge. i'm goin to try that tomarow

the pic was taken with the webcam on my laptop

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Rossfreier
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Posts: 322 | From: Brantford, Ontario | Registered: Oct 2007  |  IP: Logged | Report this post to a Moderator
Rossfreier
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well nothing new withthis build so far gonna start shrinking the the box and eliminating the angles at the back of the box hopefully i can gain enough to be competitive in 49.9
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1banginbuick
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lookin good ross now turn it up

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Bill Arnold
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Rossfreier
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the buick might be history in a 2 weeks i got a jimmy that is goin on the road then and i have no use for 2 vehicles gotta make the jimmy loud now
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Wagonized
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id try a 4th order bandpass for your next build with drivers side port

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Dustin Page
97 explorer (TOTALLED)
155.8
Team Deaftraps

81 malibu wagon 160+ bassracer--debuting spring 2010

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DO NOT DO BUSINESS WITH H&K KENT. HE RIPPED ME OFF FOR OVER $2000. STAY AWAY!

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Rossfreier
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i want to do another wall but i also want to keep my back seats this time... i'm torn. i also want to run my 4 15s in the jimmy but there isn't enough room in the jimmy 38wX35DX16H if i remember right... i want to bassrace 49.9 this time but i dunno if it'll happen. i might have to step in it to 2 spl 15s and get another opti 2k. any suggestions?
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Rossfreier
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i'm gonna see how loud i can get the buick before i tear out the stereo.
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Rossfreier
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i'm kinda thinkin of doin a 3rd row wall. i got atleast 20 cubes behind the back seats
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MrCrowley
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Well, if you do go the SPL 15 route, I know they do well in a 6th order because of the high EBP [Smile] but 4 15's in a 4th order would have some nice low end.

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Rossfreier
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i'm just building it with 2 15s behind the back seats and inder the window line, street c style. i might go to spls and get some more power later on. the jimmy is goin on the road by next weekend i hope so the destuction of the buick and build of the jimmy will start soon
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Snowman77
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Im hopen for the 140s by next year just depends on how the tax refund is this year hopen i don't owe again.

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Wagonized
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street C style for sure.

from what i remember youll have more width between the wheelwells than you will depth from the backseat to tailgate so you'd want to have the port side firing to take advantage of the additional room available. Give it more port area.

Truck will probably peak at 57ish hz.

For an SPL box id make the box all single layer 3/4 mdf all one layer except a double countersunk baffle.

If you fire the woofers up Id do:

14.5 tall X 34.5 deep X 27 wide but dont forget to try woofers to the pass side. And try a waveguide in between the woofers too experimenting with different lengths of that.

Then id build/buy a 10" aero. This box gives you 6 cubes before your woofer displacement. Your port will only need to be 6" long or so for SPL. Fire the aero to the drivers side and have it centered vertically and horizontally on that piece.

For daily Id keep the same enclosure and just have the port panel removeable and interchange that with a single 8" aero coming out all the way to the wheel well minus about 2" to breathe. That should get you tuned to 35ish hz.

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Dustin Page
97 explorer (TOTALLED)
155.8
Team Deaftraps

81 malibu wagon 160+ bassracer--debuting spring 2010

 -

DO NOT DO BUSINESS WITH H&K KENT. HE RIPPED ME OFF FOR OVER $2000. STAY AWAY!

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Rossfreier
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i have a bx design already but thanx for the suggestion
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Rossfreier
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it really sucks updating everyone on this when i have nothing to take pictures with.but i pulled all the gear today, and tomarow is demolition day
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Rossfreier
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well the jimmy is on the road. gotta get building in that soon. hopefully getting and alarm soon then the build begins.. debating between 2 15s or all 4, 2 would be a street c legal build, and all 4 would put the box 5 inchs above the window line
Posts: 322 | From: Brantford, Ontario | Registered: Oct 2007  |  IP: Logged | Report this post to a Moderator
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