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-   -   lowther dx2 in phy style cabs (http://www.diyaudio.com/forums/full-range/214900-lowther-dx2-phy-style-cabs.html)

slr 5000 21st June 2012 08:48 PM

lowther dx2 in phy style cabs
 
g,day all
i am admiring the phy ocellia design and am wondering how one could model such a cab for my dx2 lowthers

any thoughts ?

link 6moons audio reviews: Ocellia

cheers sheafer

Zen Mod 21st June 2012 09:07 PM

hardly

both Qts and Xmax are too low for that type of cab

slr 5000 22nd June 2012 04:58 AM

1 Attachment(s)
hi zen
i was thinking that also but have noticed people using this driver in ob with good reports

this cab could be classed as a style of ob/br hybrid

here is another from musical affairs which seems to have a karlson slot on the rear

sheafer

slr 5000 22nd June 2012 11:17 AM

heres another cab i found
it seems to have some tuned resonators inside

no other info thou
http://www.yildiz.edu.tr/~ilkorur/speaker/lowther.htmgh

freddi 23rd June 2012 02:17 AM

a real Karlson cabinet should work well - the 12" size Karlson with a strong motor 8" driver has a lot of impact for low cone excursion.

triode_al 25th June 2012 12:32 PM

As far as I see, Karlson also needs a higher mechanical too. Then still it can go real low.
As a student, with Altecs in the Karlsons I used to annoy my neighbors across the alley, their coffee table rattled. :eek:

frperdurabo 25th June 2012 02:52 PM

The Lowther driver, in addition to having the wrong Qt for open-baffle or "lossy" cabinets, has VERY limited excursion. If you want to run it that way you'll need to high pass it, and use something else to reproduce the bass. quarter-wave.org has a open-baffle Lowther project that illustrates this concept.

Or check this page at Lowther America: http://www.lowther-america.com/page2/page12/page12.html

triode_al 26th June 2012 07:35 AM

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I did the following study of the drivers:

Attachment 289115
It shows the Lowthers are great for above about 150 Hz, the PM6C is better with its less strong magnet. The PM2A has a sensitivity that is too high for a lot of supplementary low frequency drivers.

http://www.diyaudio.com/forums/attac...wther-b200.jpg

The low can be well added by a B200 as that suspension works well for low in the open baffle; this one is in the low position.

I just bought a pair.

slr 5000 28th June 2012 10:46 AM

4 Attachment(s)
g,day all

i decided to just jump in and try the open back cabs and with some carefull placement of wool behind the drivers they sound very promising
more fidling to come
the timber is poplar and is still raw ,not sure how i will finnish it yet but it looks great:scratch:
oh and ignore the mess its, my hobby room and full of whatever i happen to feel like messing with at the time


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