MIGHTY DUB PASS

MIGHTY DUB PASS is mearly a concept and does not deserve capital letters until it is proven imo

We'll be waiting for it!
Did you built round chamber or squared? what about the vents shape?

cheers, bitzo

They do sound interesting... So interesting in fact, after many a tireless eyedrying hour spent on this forum being an audiophiliac, with a serious sound hardware fetish... I write my first post. If they sound as good as they would appear to then bravo on the design dude. I built half of a prototype sub myself and my brother designed a while back. The brief was: pd186 spacific (thats the driver we had), horn loaded, capable of 27-300hz (ish) from a single cab/pair, able to fit 2 side by side in a tranny ;).... So after much deliberation and coffee we invented front and rear loaded horn cab, the driver is located in the bottom end horn (rear loaded and a modification of the 18 scooper... longer and much bigger mouth) 1200 tall (all mouth) 650 wide and 1100 deep... big and heavy. Top horn is a modification of the hd15 as this is the clear choice for kick and solid base to work from. My brother did all the extra clevver bit with regards to horn tuning and phase calibration typee jazz so from 27-72hz the bottom horn was loaded and the top horn acted only to increase pressure to front of driver... at freq's about 72 the top horn would take over and do from then til 300.... All sounds like a good idea but after building the bottom horn (built outa 18mm weatherproof, about 20 laminate in some places and not a great deal of voids) i came to realise drivers rear would not have any pressure behind it when running freq's for the top horn and therefore would lose efficeincy no? Also i just wanted a scoop to go real super deep, which it does remarkably well, 15 trap tops will do from 70hz fine, just not as pokey. Ive put sine throughy it an "listened" to the response and it will throw down to 28hz without the top horn and subsiquent load on the front of the driver. I still havnt got round to building the top horn as i moved house. I now have an old makita to replace my ever failing woolworths £10 jobby so should be a doddle when i get back on it! I bought some JBL sound power 2x18 subs (reflex shelf port similar to g-sub... if thats the one i mean)that claim to do 34hz -3db.... ive bumped them from 30-58 and they just dont have anywhere near the low end as the single 186 does. It rattles old bolts in the beams 3 floors up its mental...

ANYWAY...Blowing smoke guy... i think we all know how constructive negativity like that is. Critical input, ok but dont just be bitchy its futile and destructive. Designer man, you really have to get some of these built and tested to support any sort of horn beating BP design claim however. You just cant beat a bunch of fat horns sounding off... such a shame they are by nature so large and heavy. However these are the laws of sound physics and horns are boss.

If anyone is actually interested in my design and wishes to see some pics/schematics let me know (ill have to ask bro first) he drew it all up on google sketch up too! Also any suggestions? Should probably make a new thread... Hope im not treading on any feet or owt.

Free truth. Live in love. Inabit.

Could you post pic and/or drawing?
+1 for another thread in the scoop section :) could be very interesting.


cheers, bitzo


Edited by bitzo - 21 October 2009 at 10:29am

510 wrote: if you want kick and a sub at the same time eawkf940 will do the trick 4u nicely 27hz - 200hz what more could you want the perfect box kf940

...funny enough that they recommend a cut-off @ 100Hz

please go and dwn the spec sheet from eaw 24hz to 300 is what it says 100 hz is the measurement at 1metre 1 what 113 dp is this out put so have fun dub