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Hey guys i would like to know if anyone has scored over 150 or 150+db using a 9515dd sub?anyone?
Posts: 299 | From: virgin islands | Registered: Jun 2008
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I'm sure that sub has been well past 160. I have seen the a singel 9512 Into 152 range win a street A setup. I have also seen a 9518 well into the 170's.
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i am trying to find specs for an enclosure to hit somewhere i that range. can anyone help?
Posts: 299 | From: virgin islands | Registered: Jun 2008
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On the temlab meter it does a 142.6db and the current box is the high effiiency enclosure from the DD audio site. It plays loud and still drops low on certain songs like Gorilla Zoe song Lost.
Posts: 299 | From: virgin islands | Registered: Jun 2008
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I had a box doing just a little over the 150 with a 9515, thenI had this box:
doing 152's in testing but I destroyed the sub.
Hard work ahead for you with a trunk car to work with! try getting the sub and the port firing into the cabin instead of having the port working hard to pressurise the trunk.
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In 2003, Christiaan Oosthof did a 151.7db with one DD 9515 from the trunk of his bmw 3 series. Power came from 2 x RF BD1500 on 16v.
-------------------- Team DD Belgium - Dieter 2004: 153.2dB @ dB-Drag Street A certified 2005: 156,5dB @ dB-Drag Street A certified / 159.1dB @ IDBL Stock 1 worldrecord 2006:157.5 dB @ dB-Drag Street A certified 2007: 158.2 dB Worldrecord Street A / 158.3 dB @ dB-Drag Street A certified 2008: Benelux dB-drag judge Posts: 796 | From: Belgium | Registered: Sep 2003
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any one know dimensions for an enclosure that can give me those numbers?
Posts: 299 | From: virgin islands | Registered: Jun 2008
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Our 97 Cavalier with a DD 9515 And a DD Z1 done a 150.8 Db Drag and 152 Iasca with above equipment, woofer and port forward in the trunk and seat still closed.
Trunks are very tricky for spl, just try different box designs till you find the best.
-------------------- Rd Audio Sundown Audio
New Setup All in a 97 Cavalier 2dr Trunk! 2 RD 3250.1`s 1 RD 15" Heavyweight 1 Oddysee 2150 4 Runs of 1/0
1- flip the box around and fire the sub to the rear.
2- flip the box and fire the sub up and port to the rear.
even with that box that isn't necessarily designed for max spl in that particular car, you should be putting up bigger numbers than you are.
Posts: 542 | From: nor cal | Registered: Aug 2004
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will try that Thanks, any other ideas or enclosure spec. that has been used to get that number?
Posts: 299 | From: virgin islands | Registered: Jun 2008
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I was given this eclosure here can anyone draw me a diagram to see what it would look like i have never used areaports in any of the enclosures i have built. this is the info:
(here is do, 2.1 cubic feet inside, with 8"areoport about 21" deep port fire to the drivr side and sub fire to the back the car.)
Posts: 299 | From: virgin islands | Registered: Jun 2008
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i was doing 154dB with 9515 cevlar cone, 5kW amp, 51Hz.. try to make your box round 80-85l because of slightly higher freq U will be playing.. but still, mine was golf IV..different from tyota because of the boot..
-------------------- CRO dB Cup & dB Drag Champion 2007, 2008 Loudest CRO car ever 161,5dB Posts: 2 | From: Croatia, Zagreb | Registered: Jan 2009
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