I do not. They are not as useful as pictures, and any sound is so convolved with so much else you do not know, that any attempt at presenting sonics is useless. The things the miniOnkens do really well are some of the first things that gets lost.
dave
Did you include your amp's output impedance (not tap rating unless a matching impedance amp), any XO/whatever added resistance (Rg)?
The miniOnkens borrow the side vents from the Onken (in particualr one from Audax published in the late 70s), but the alignment is way different and the slot vents are purposely made with very high aspect ratios adding R to the vent part, and push the reflex more towards aperiodic. Further it turns out, if needed, they can be pushed even further opeb cel foam to push them even more aperiodic.
A traditional Onken has a low bass shelf alignment, but i am told more and more are doing max-flat alignments. There is nothing magic about the Onken except the side vents, something that dramatically stiffens the side walls. One can get some higher frequency resonances from the vent length (but that can be an issue with any box with a longish vent).
dave
Greetings to anyone and especially to the Onken/Fonken Guru.
I'm trying to understand how these enclosures are performing.
Do they have any special "virtues" in comparison to "horns", transmission line enclosures, ...
Are a special type of Bass-reflex box or something else ?
Are an "Open-Baffle" box with a (kind of) "acoustic mirror" attached to the back opening, but "tuned" to a certain frequency ? All at the same frequency or every port to a different frequency but all of them closely tuned one to another ?
From the sketches I see that they don't have sound absorbing material inside (maybe I'm wrong) so the efficiency of this type of enclosure shall be rather higher. The cabinet is a "live" one or an "as-dead-as-possible" one?
Elias
I'm trying to understand how these enclosures are performing.
Do they have any special "virtues" in comparison to "horns", transmission line enclosures, ...
Are a special type of Bass-reflex box or something else ?
Are an "Open-Baffle" box with a (kind of) "acoustic mirror" attached to the back opening, but "tuned" to a certain frequency ? All at the same frequency or every port to a different frequency but all of them closely tuned one to another ?
From the sketches I see that they don't have sound absorbing material inside (maybe I'm wrong) so the efficiency of this type of enclosure shall be rather higher. The cabinet is a "live" one or an "as-dead-as-possible" one?
Elias
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Greets!
Hiraga's Onken/Altec 360L is considered the reference, so notice the summed TL vent's powerful peaking at Fb and mid-bass, lower mids' TL pipe harmonics comb filtering with the driver's output; IOW loosely based on Jensen's bass Ultraflex-15, pg. 12.
Hiraga's Onken/Altec 360L is considered the reference, so notice the summed TL vent's powerful peaking at Fb and mid-bass, lower mids' TL pipe harmonics comb filtering with the driver's output; IOW loosely based on Jensen's bass Ultraflex-15, pg. 12.
A bass reflex with vents running down the sides. Offically with low bass shelf tuning, but many ar enow doing max-flat, and miniOnkens push the high resistance idea, increasing vent aspect even further but also having vents down the size.
Official Onkens tend to large, miniOnkens tend to be small. Low bass shelf is intended to get bass extention from drivers that won’t do it flat, miniOnken only goes as low as it goes.
dave
Hi Planet 10. I am looking for a Mini-Onken for the Markaudio CHN-50 Drivers. Do you have any design for it already? I would also consider to 3D print them as you did in a previous post. Does it work ok?
Yes, the CHN works in the same boxes as the Alpair 5.2/3,
but i have recently started to add the slanted front boxes as in the ¨Fonken set.
Includes plans for helper woofers, both ones that act as stands and ones that are meant to be distributed. This is one of them: https://www.diyaudio.com/community/threads/silver-flute-w14-woofers.396686/
dave
but i have recently started to add the slanted front boxes as in the ¨Fonken set.
Includes plans for helper woofers, both ones that act as stands and ones that are meant to be distributed. This is one of them: https://www.diyaudio.com/community/threads/silver-flute-w14-woofers.396686/
dave
Dave,
recently I am in possession of tannoy hpd295/8, is there a solution for size reasonable
enclosure something like
you proposed as aperiodic mid-tl (trapezoidal mini onken ),or HiEnd miniOnken of yours
Zoran
recently I am in possession of tannoy hpd295/8, is there a solution for size reasonable
enclosure something like
you proposed as aperiodic mid-tl (trapezoidal mini onken ),or HiEnd miniOnken of yours
Zoran
The 10”.That is one i have not done, but the one i most want to play with personally. Puzzlekoat and a new XO at minimum.
I would love to do a miniOnken, i can specify one, but cannot draw it up properly,
As miniOnkens tend toward small, and there is room for tuning smaller boxes than optimum for decent response. The tyopical Tannoy box i have seen and heard try too hard to get bass extention (big boxes poorly tuned) and give up some fidelity to get it.
dave
I would love to do a miniOnken, i can specify one, but cannot draw it up properly,
As miniOnkens tend toward small, and there is room for tuning smaller boxes than optimum for decent response. The tyopical Tannoy box i have seen and heard try too hard to get bass extention (big boxes poorly tuned) and give up some fidelity to get it.
dave
Some various specs with one radically different that won't be a 'reasonable' size, so ideally need measured……….
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So then ,
something like Demitri or Mini Onken for Audio Nirvana 10"
or just for me to try something like aperiodic Tannoy monitor
with bracing stuffind and variovent.
Zoran
something like Demitri or Mini Onken for Audio Nirvana 10"
or just for me to try something like aperiodic Tannoy monitor
with bracing stuffind and variovent.
Zoran
Demetri is an ML-Voigt, you’ll have to give me some time, i won’t be able to get easy access to my modeling machine until i get a new Ethernet switch next Thur.
dave
dave
Measured specs? All I found were some AN10 classic and IIRC their published specs were bogus.........