newfinish

I tried finding more info on this bandpass box with an extra cavity which is about 1/3 of the total box anyone know what i'm talking about???
the first is the cavity containing the sub the other cavity the port but the port fires into another cavity which has another port firing out side, i need to know how to build one what are specs i have to be aware of and if the bass is nice or just loud.
thx

mik

iTrader: (1)

I have one here,




You'll have to play around with designs to make it work properly, the info on the site below isnt exact and WinISD cant model this type of box properly, but it will give you a good starting point.

My REs get loud off of 250-300watts, I was impressed, but I would like a little more output (so im replacing the RE8s that are wired for 4ohms to dual 9kv2s wired for 2ohms in the same box), but its still nice and the SQ is GREAT. If I didn't like a lot of bass im sure this would be great for many people in a daily driver.

Mine is 3cf net, so the smaller chamber is exactly 1cf net and the larger is 2cf net. You have to remember to account for port displacement and sub displacement which is what makes this type of box difficult to design, but its worth it IMO.

http://www.diysubwoofers.org/prt/dual_chamber.htm

[ December 15, 2004, 01:43 PM: Message edited by: mik ]

hofulstrof

thats called and ABC box do a search and you will rind lots of info.maby ppl have had great experiences with this type of box

hofulstrof

Only because of me.

Also called a : dual chamber reflex, tri-tune, aperiodic dual chamber. </font>[/QUOTE]crazy how do you get ABC out of that [img]graemlins/bow.gif[/img]

newfinish

thx guys big help I'm using peerless 12"xls subs for this enclosure can't to see how it sounds!! [img]graemlins/jammin.gif[/img]

newfinish

can you bandpass this box to?geting 3 chambers?just curious I might try it...

hofulstrof

do a search there are lots of tutorials on how to build these.i am also in the proccess or trying to make one.keep us posted if you do make one [img]graemlins/thumb.gif[/img]

13idnyk

Only because of me.

Also called a : dual chamber reflex, tri-tune, aperiodic dual chamber. </font>[/QUOTE]crazy how do you get ABC out of that [img]graemlins/bow.gif[/img] </font>[/QUOTE]Actually, It's Aperiodic Bi Chamber. Dukk, you know better! You got the most posts in that thread over in Termpro. At least from what I can remember!