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Lexus IS-F - 6th order Isobaric Clamshell Bandpass (video page 5)


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Box is looking good steve, hopefully it sounds just as nice! :D

Hey Steve can I run 1 Rockford fosgate t2500-1bd and 2 Mayhem 12 D2 –Ascendant Audio 12

I wouldn't recommend it

1st reason if you get dual 2 ohm coils which actually read 1.4 a coil you would be running that amp at 0.35ohms (parallel wiring) or 1.4ohms (series/parallel wiring). That amp sure wont take .35ohms. At 1.4ohms that amp wont make much power, especially after impedance rise, and the woofers wouldn't even move with much authority .

2nd reason being that 2 Ascendant Audio Mayhems will laugh at 2500 watts rms on the pair of woofers, and wouldn't even really get moving until you have 4500-5000 watts rms on them.

You would be better off going with dual 2 ohm coils and 2 rf 2500bd. Which will be 1 amp per 1 sub @ .7 ohms.

If 2 amps is not in your budget you would be better off getting the next model down, like the Havocs and get dual 1 ohm coils (which read .7ohms per coil) and with a series/parallel voice coil wiring config you would be running the amp at a safe impedance of 0.7ohms on one rf2500bd.

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Looks awesome Steve! Good luck, hope it turns out well!

The only part I'm not understanding is what makes it considered a "Clamshell"? Is it the way the subs are facing one another?

And if so, then then what makes it "isobaric"? The space in between each sub?

I remember seeing these style setups in the 90's, but I had no idea what they were, or how they worked.

Super cool idea, whether or not you keep it!

Now I bet we will be seeing several others try it since you did....

Edited by Purplehaze


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why did you post that? talk about random.

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^ +1

http://www.youtube.c...e1?feature=mheehttp://www.stevemead...87#entry1993187

JVC KD-R530 head unit

VVME INNO-D1500 sub amp

Kenwood KAC-8402 amplifierPioneer 2-way 6.5 X2 @ 4 ohms

DTI Audio 6.5 X2 @ 4 ohmsbox: 4.24 ft^3 tuned to 61 hertz (port walls fell off and dissapeared :( )

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I must have been the only one surprised by this build. Steve when you first started modding your Lexus and especially after the Nitrous install I didn't think you would put a system in it due to the weight. Like always it looks great, hopefully it doesn't effect your performance in any way. I'm tuned in. :)

Edited by herbykw

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Very nice! You almost never see these kinds of enclosures in car audio. I'm very interested in how this will turn out. I'm supprised we don't see many sq cars with these kind of enclosures.

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2000 Subaru outback 2.5l

Head Unit: Pioneer deh 4300ub

front stage: tbd

subwoofer: Stock Fi Q 18"

amp: Audio que 1200d

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showing off the (OLD) claim shell. Anyways Im I the only one that think this car is to great to need more then a simple audio upgrade.

Yo dog i heard you like boxes. so i put a box inside a box so you can bass while you FAIL

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