There is hearable cone breakup in with the Alpair 10.3, but it's mainly an issue when you listen very close on axis to it and it's easy to fix with an LRC filter (or dsp) if you want it. I heared the enabled version, and it also fix it largely, but i'm a bit clumsy on this kind of stuff, so i did not try it myself. It's easier to solder an LRC filter for it for me for my desk speakers in my office.
In my other setup, that is a waw that where i listen from a few meters distance, this is even not needed as the interaction with the room smooth that out. I use that setup now with a dsp, but did little eq on the top section, i mainly focussed to fix the bloated bass response due to the room. But in a former version with passive eq, i also used very little filtering on top.
In my other setup, that is a waw that where i listen from a few meters distance, this is even not needed as the interaction with the room smooth that out. I use that setup now with a dsp, but did little eq on the top section, i mainly focussed to fix the bloated bass response due to the room. But in a former version with passive eq, i also used very little filtering on top.
I heared the enabled version, and it also fix it largely, but i'm a bit clumsy on this kind of stuff, so i did not try it myself. It's easier to solder an LRC
Eyesight wiped out my ability to EnABL, so the simplier tweak. Fix at the source not a bandaid after.
I’d love to have you try it and see what needs changes in your LCR.
dave
Isn't that always the way? I just am a curious person and would like to try them out to hear what they sound like.
KJF still shows stock, but they're in the UK. https://kjfaudio.com/product/alpair-12pw-single-driver/Isn't that always the way? I just am a curious person and would like to try them out to hear what they sound like.
jeff
One question about this driver. Is there a target frequency for a cross over to tweeter? I have made a crossover set for 2.5k. I forget the slope but think that it is 12Db per octave.
target frequency for a cross over to tweeter?
Between 200-250 up to as high as 5-10k.
Some have used it as a full range. (stand mount version of the Mar-Ken12pwT in the background.

dave
You know, given my old ears, it likely would be fine as a full range. Now, just let me get the nerve to push the 'pay now' button. Haven't found a sniff of them anywhere else except that their price was $200 EACH!
Have a big shot of something alcoholic and hit that button. 😉Now, just let me get the nerve to push the 'pay now' button.
jeff
Hi Dave, sorry to read so, is there anyone still mastering the EnABL?Eyesight wiped out my ability to EnABL
It is something I would really like to learn, but there's no-one who can teach in person how to do it.
I have excellent credit on PP.... Um, does really need to be alcohol? Doc says that I should stay away from it and should just use large doses of what he hands me.
And, sorry for asking (again) what is the model of those stand mounted speakers with the side ports? I keep complaining about not getting to make them before I die. Maybe it is high time.
And, sorry for asking (again) what is the model of those stand mounted speakers with the side ports? I keep complaining about not getting to make them before I die. Maybe it is high time.
is there anyone still mastering the EnABL?
Not yet, but i am encouraging and will help anyone to get up to speed.
It is something I would really like to learn, but there's no-one who can teach in person how to do it.
No need for in-person trainer.
It is pretty straight forward, just requires decent hand-eye cooordination and some practise.
You will get help learning.
dave
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what is the model of those stand mounted speakers with the side ports?
There are many of them (100s likely). They typically have something-Ken, with a prefix specifying size, and the suffix the driver and the style. R for rectangualr (some older ones named before there had to be a distinction), and T for trapezoid. No direct info in the name for larger thsn prime size (13 litres), except the use of T and TT. Trapezoid and Tall Trapezoid.
example. µFonkenSET, µMar-KenSET. Same box with different details for the Fostex (Fonken) and Markaudio (Mar-Ken). Some of the MA ones have names driving down to ther models, Plu-Ken (Pluvia, allusion to Frank Zappa), CHR-Ken (Kraken), Mar-Kel (EL70, Superman’s Krypton name).
Those 2 brands dominate but TAD-Kens, Tan-Kens, Low-Kens, Axi-Ken are more examples.
Little did Chris (or myself) knew at the time where coining the name Fonken would take us.
dave
Ok, so, tell ya what>> If I can get a set of plans for the Mar-Ken12PWT, I will buy the pair of 12PW drivers from GB and have a summer project waiting. Got a lot of old wood in the shop that is beautiful. Geuss there is no time like the present.
Meant to post the CHR-Ken, Kraken. If you have Dark Mode you might have to control-clik the image into another browser window to see it.
dave
dave
Mar-Ken12PWT
The planset comes with both the floor-stander and the stand-mount. eMail me.
dave
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