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kryptonitewhite

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Posts posted by kryptonitewhite

  1. Why Do My Subs Play Well Below Port Tuning?

    in Subwoofers / Enclosures

    Posted

    Probably coupling with the car providing additional loading on the woofer and the port.

    You always have to consider the box in the car environment. Yes your box is a normal ported box tuned to 42hz in a free-space environment but as soon as you put it in a car you have created an effective bandpass enclosure that changes depending on how the woofer and port react to how much air is around them and how the air 'loads'

    You can make a woofer play really low by shoving it right up against the boot/tailgate - you're effectively extending the length of the port and the woofer cannot 'unload' because it is 'loaded' by the air pressure between the cone and the car's panels.

    I suppose I can go into a bit more if anyone is interested.

    excellent answer

    ive always wondered where Meade's F3 is with it being a 27Hz tune iirc with the port being loaded right off the boot like that

  3. Bass I Love You

    in Tunez - All things music related

    Posted

    I have the slowed version on 300 RMS givin me some nice excursion :)

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    sounds great, gonna make my car fall apart though...lol

    that is aweome! I'm not seeing what you have for an enclosure that allows them to move like that without complaining.

    I've never heard and seen it before without a car amp where unfortunately SSF are almost always undefeatable, now with this tiny HT plate amp I found this from 2:40 - 2:50

    http://www.youtube.com/watch?v=DiHlU...e=channel_page

  9. T- Line Help.

    in Subwoofers / Enclosures

    Posted

    a t-line is way different from a regular ported enclosure so your port firing up through the rear deck and wherever you want your speakers to face is going to be real challenging... if you haven't already read the tutorial on the quarter wave t-line do so.. and if you didn't understand it do it again. And you won't be able to build a t-line for both speakers in the back of an impala. Here are a couple of pictures from the t-lines i built for 1 12.

    kerfedt-line031.jpg

    kerfedt-line046.jpg

    Photo18.jpg

    t-line005.jpg

    so you can see you have to have ALOT of space to build one of these things and i put these in a blazer and it took up the whole back end. You can go for a t-line but you'd only be able to use one speaker and the port up through the rear deck.. well i don't see that happening. The good thing though is if you can find a single 12 t-line in there it'd probably sound much clearer and if not a little louder the those 2 subs put together in a regular ported box.

    As far as your speakers specs i think you'd be good but forever would know more about that than me.

    I'm not seeing a compression chamber, and I also love how those aren't tapered... is that strictly 1/4 wave taking into acount Fs only for the length, or what all is calculated there... Sd to determine height x width?

  12. Fi Ib3 18"

    in Subwoofers / Enclosures

    Posted

    Diameter wise was everything I was expecting... I remember the 1st 18" I saw, Kicker Comp old school, back when PPI came out with the flat cone sub (did I lose most of you already? I'm old) I've seen many an 18" in my life... But the surround on this thing, and watching it go to it's limit.... so much more than I expected!

  13. Fi Ib3 18"

    in Subwoofers / Enclosures

    Posted

    I have imagined an 18" forever, I've gone to see some here and there... but actually having one, holding it, turning it over... I can't believe just how big it really is. I used to run 15's. So I gotta know what an 06' XXX is like. I don't think I could want any more. Sure, I'll be going 22" but I'd almost have to think I'd preffer a XXX 18.

    HUGE!

  16. Fi Ib3 18"

    in Subwoofers / Enclosures

    Posted · Edited by kryptonitewhite

    If Exodus Audio does their 21" Maelstrom-X then i will get that before the Fi. I also heard Soundsplinter is doing an HT 21". I don't care what brand it is, if it has high Xmax, low Fs, low inductance... I want it! Bigger? Better!

    Ya, there are lots of people doing IB setups for HT with 4 Maelstroms, 4 IB18's, or 2 RL-p 18's... very low power requirement, strong output to 10Hz. I preffer LLT designs... large and low tuned to implement the rear wave.

    My ultimate wish right now is the Sicko... 21" with neo magnets, 4" VC, 5,000 RMS, 40-60mm Xmax (in the works, can't recall target number). Uses the XBL^2 Parthenon motor

    Fi is making a 22" car audio driver as well.... IB3 22" and IDK what series the automotive will be

  17. Fi Ib3 18"

    in Subwoofers / Enclosures

    Posted

    congrats, what plans do u have for it?

    Dude, I totally missed your post! My bad. 18cubes 10" sonotube port.... can't say on the tuning, cuz that starts a whole big debate :D

    I have a Lanzar OPTI2000D right now which will give it 1100 watts... perfect acording to Scott, it's rated 550 watts mechanical free air and he said double that thermally if it were in an enclosure.

    The 22" I am hoping for D2 for 2 Kicker 2500.1's :hairtrick:

  19. Fi Ib3 18"

    in Subwoofers / Enclosures

    Posted · Edited by kryptonitewhite

    Looking cool man. What type of enclosure are you gonna be working with?

    This is temporary until Scott from Fi finishes the IB22, or Kevin of Exodus finishes the 21" Maelstrom-X. With those subs in mind, they need HUGE airspace.... 18cubes after displacement, and I'm not gonna say tuning ( get hated too much for it :P )

    Some day I plan to have the 21" Sicko from Exodus when it's complete... it will implement the Parthenon motor

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