Originally Posted by A9X-308
The AKRP is quite a good design for what Duke intended it for.
Why are you arguing with me then for suggesting it?
What? WinISD is basically useful for working out tuning, nothing else. It shows two standard models as options (QB3 and SBB4 IIRC) but you can still choose everything else yourself and make non standard alignments such as LLT easily.
And it won't be an accurate sim for anything but a subwoofer.
The slim picking are ONLY if you choose to use someone else's existing design exactly.
Erich is asking for advice on what to do as far as FLAT PACK kits are concerned. That sort of, kind of IMPLIES "choosing to use someone else's existing design exactly"
Why not a stand mount SEOS12 for not and subs which are stand replacements later.
..what? What part of "He doesn't want a stand mount" did you miss? Are you just trying to argue with my every statement to boost your ego or something? Not everyone WANTS a stand mount. Get over your high horse with being offended by my suggestion of a tower.
Only if you use a pre selected box. Starting from scratch should not be an issue for either, if your design is good.
We`re... TALKING about "pre selected boxes". You know... FLAT PACKs.
Bollocks. You'll need to prove this.
need to prove it's "Bullocks". Martin King himself has said that the differences between vented and ML-TL become extremely blurry, and that once a vented box has one dimension which is around 3 times the other two dimensions, it edges more towards quarter wave behavior, unless you absorb all the internal standing waves.
No, that's just poor design.
No, it's poor implentation of typical ported loudspeaker design, which suffers from lots of response ripple leaking through the vent without lots of internal absorption. Again, this is a ****ing flat pack. Why wouldn`t people set themselves up for success from the initial design stage, rather than compensate for half-assed designingÉ
MLTL are much more difficult to design and get right than ported or sealed.
They're no less difficult to design
than ported, and once designed, are a lot easier to get right
. Especially for a noob building a flat pack - since they're not sensitive to inches upon inches of insulation lining to reduce standing waves.
To make an MLTL you need Martin's software too, though I believe Hornresp can come pretty close.
...which is why
I was offering to design an ML-TL using Martin's software if everyone else was interested.
As the Deltalite 12 was mentioned, you are going to have difficulty getting an MLTL for that (or similar 12") into a box of similar size/shape the the AKRP, especially if you want a tuning that could reasonably replace a system that had some sub capability, not just F3 at 40Hz.
There are other drivers which require smaller boxes than the Deltalite.
F3 at 40hz is a lot deeper than F3 at 90hz. And many people do want towers, not giant stand mounts.
On this last point, an MLTL is not a magic alignment: you will still have the volume displacement limitation of most HE 12" - the DL12 has an Xmax of <3mm.
NO one said ML-TL is any magic alignment. Again, what's with the attitude?
Go ahead and build whatever you want, but an MLTL is really only best for those who can generally have a much larger enclosure than for a sealed or 4th/6th order ported and are scared of EQ and/or subs.
And you think you're "educating" me with this?
Get over yourself. Some people want ****ing towers. If you don't, no one's stopping YOU from building whatever you want. I was making a suggestion for a flat pack, and people always want tower flat packs. Many
are turned off from the econowave format simply because of the stand mount "look".
Any proportionally tall ported loudspeaker will start to behave as a mass loaded transmission line. that's what an ML-TL IS. The only way to rectify that is with extremely aggressive absorption... which is just unecessary... if you can get the same results by modifying a few inches and vent placement.
Why are you even subscribed to this thread? All you do is attack other posters at opportunities where you can prop yourself up. Lose the aggression, it's NOT asked for. Post something productive for once. The rest of us are here because we enjoy this hobby, not to act like know-it-alls. Because you don`t know it all, nor does anyone else in this thread. No one benefits from you flaunting yourself as an expert yet contributing zilch. Er, contributing nada.