Hello all. I've been browsing around the forum for a while now, and I must say: I feel belittled 😱
Before coming here, I would like to have thought I was "savvy" in regards to woofers/enclosures.. Clearly not the case.
So, in my humblest of requests - can someone tell me what kind of "Franken-box" I've designed here?? And how would I go about modeling this on AkAbak/HornResp? Thanks in advance to all who can help
I literally "winged it", with only basic principles in tact. It falls on its face under 45hz, but 50-90hz is incredible. With the high cutoff however, it makes for a TERRIBLE substage in the Jeep
Before coming here, I would like to have thought I was "savvy" in regards to woofers/enclosures.. Clearly not the case.
So, in my humblest of requests - can someone tell me what kind of "Franken-box" I've designed here?? And how would I go about modeling this on AkAbak/HornResp? Thanks in advance to all who can help
An externally hosted image should be here but it was not working when we last tested it.
I literally "winged it", with only basic principles in tact. It falls on its face under 45hz, but 50-90hz is incredible. With the high cutoff however, it makes for a TERRIBLE substage in the Jeep

dear god...
Thank you... I think...?
...A pencil sharpener ???
Not quite lol.
What is your theory here? Sort of a backloaded, tapped horn, ported box?
Well, from what I "think" I understand (lol).. It's a series tuned 4th order (again, I think) combined with a tapped flared "horn" style mouth. I honestly don't know what I was thinking haha. Turned out to be pretty darn loud 45hz+. Sounds great on rock, jazz, etc. Just not "well rounded" for all music, which is my goal.
This might work 😀
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^^pretty sweet lookin!
OR, this.... but your original has too many things wrong.
________________________________________________Rick.........
^^also very cool!
the upper pic acts like daccv box. hornresp say "no" akakbak might be but i don't know the best point of the design. the lower pic can do it easy. the front acts like short horn and behind is br chamber. the lower pic might be clever box😛
Hmm. Some sort of TL or TH with a Helmholtz resonator?
The original name for it ,is known as Double Reflex Chambers At Sight (Sic !! )
Even if this is not the case ,because of the vicinity of the 2nd duct to the first one ( the throat -narrowing between the two chambers ). I did it ,very similar to this ( the port in the middle ...of course ,but also laminar duct may need a deep ...study !!! )
It works great !!!
Good Find!!!!
2nd chamber's volume must be double than number 1 chamber -
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The original name for it ,is known as Double Reflex Chambers At Sight (Sic !! )
Never heard of that before! Any references?
Mhhh ...secret weapon 🙂
search for matarazzo ( a very well known engineer devoted to good sound ) and dcaav
🙂
search for matarazzo ( a very well known engineer devoted to good sound ) and dcaav
🙂
Not so Crazy
@ old skool junkie
No need to feel that way at all, & full marks for having the courage to post it, & with your nice sketch up 🙂
Kudos to you for thinking differently, literally "Out of the BOX" I like that, my kinda style too.
You're right, it is series tuned combined with a T "so called Horn"
picowallspeaker got it right, the back portions = Double Chamber Reflex = series tuned. I would add, of sorts due to your "winging it" 😉
If you could redesign the back chambers without "winging it" i expect it might get you a lot nearer to what you're hoping for. I think i'll have a go myself, & if i do i'll post back with a design 🙂
Regards
@ old skool junkie
Hello all. I've been browsing around the forum for a while now, and I must say: I feel belittled
No need to feel that way at all, & full marks for having the courage to post it, & with your nice sketch up 🙂
Kudos to you for thinking differently, literally "Out of the BOX" I like that, my kinda style too.
You're right, it is series tuned combined with a T "so called Horn"
picowallspeaker got it right, the back portions = Double Chamber Reflex = series tuned. I would add, of sorts due to your "winging it" 😉
If you could redesign the back chambers without "winging it" i expect it might get you a lot nearer to what you're hoping for. I think i'll have a go myself, & if i do i'll post back with a design 🙂
Regards
Attachments
"Never heard of that before! Any references? "
weems double chamber About 5,630 results (0.38 seconds)
The Subwoofer DIY Page - Dual-chamber ported systems
weems double chamber About 5,630 results (0.38 seconds)
The Subwoofer DIY Page - Dual-chamber ported systems
No , it's Thaiwach !😱
Dcaav ...as he/she reported , means ,other than Double Chambers , Accordate A Vista ( In sight ) ,where the 2nd chamber is double volume than 1st 😀
It doesn't need to be exclusively for sub duties .....
Dcaav ...as he/she reported , means ,other than Double Chambers , Accordate A Vista ( In sight ) ,where the 2nd chamber is double volume than 1st 😀
It doesn't need to be exclusively for sub duties .....
Wow, I must have stumbled on something awesome here! To all that I'm not directly quoting, thank you kindly!
^^ This, good sir, is awesome info. As soon as I get home from work I'm gonna re-design this box properly (as outlined on the link above).
Any thoughts on the "pseudo-horn" mouth for the subs, as I did before? Should I leave it or do away with it? Any input (as always) is greatly appreciated fellas (and ladies, if applicable)
^^ This, good sir, is awesome info. As soon as I get home from work I'm gonna re-design this box properly (as outlined on the link above).
Any thoughts on the "pseudo-horn" mouth for the subs, as I did before? Should I leave it or do away with it? Any input (as always) is greatly appreciated fellas (and ladies, if applicable)
Hi old skool junkie,
"...thoughts on the "pseudo-horn" mouth..."
How about converting it into djk's PPSL plenum?
Regards,
"...thoughts on the "pseudo-horn" mouth..."
How about converting it into djk's PPSL plenum?
Regards,
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