Are the later westlake horns without the 2328 throat adapter ?
Is their inner height 2" and what´s the advantages of these modifications?
Are the later westlake horns without the 2328 throat adapter ?
Is their inner height 2" and what´s the advantages of these modifications?
The later ones are much simpler with a simple hole bored into a piece of aluminum… I'm not sure if this was better or just easier for them to make.Originally Posted by Dr.db
Widget
So these would have a bigger inner height of 2 inch, right?
I`m just digging on this, because the crossover on the earlier modells were 1000hz and the newer modells have lower crossovers of 800hz
Depending on the document you look at JBL recommends different crossover frequencies for the 2397. In my opinion (based on measurements and listening) I prefer a 1200Hz crossover frequency for them and the original Westlake horns. I have no opinion on the later Westlake horns as I have no experience with them.So these would have a bigger inner height of 2 inch, right?
I`m just digging on this, because the crossover on the earlier modells were 1000hz and the newer modells have lower crossovers of 800hz
As a point of reference I feel the Altec 811B is best above 1200 Hz and the 511B is best above 800Hz. In my opinion, most of these horns get very "horn like" if used close to the specified low end crossover frequency.
Widget
Thanks a lot for your instant help!
I`ll go with the 1200hz crossover then and stick to the approved design.
As the original Westlakes had less output in the upper frequency band than the JBL 2397, which diaphragm would you prefer for these horns?
The 2441 has extended highs but seems to gently rolls of from 6000hz.... is this really a smart match with the westlake horns?
The old style 2440 hasn`t extended highs, but has about 4-5db´s more efficiency from 6000-9000hz.
Do you think the 2440 would compensate the sacrifice in highs of the Westlake horns?
The best sound I ever heard from my Westlake clones or JBL 2397 horns was from the TAD TD-4001s. The difference between the 2397 and Westlake is measurable but not particularly audible.
Widget
I just bought a pair of 2446 drivers and want to mount either new 2441 or 2440 diaphragms, which of these would you choose ?
Curves with truextent Dia´s ?
Does anyone made curves with truextent Dia´s ? What´s the top end for the 2397 ?
Depends on the driver..
... and the listening axis
I think the limitation is not the driver or the diaphragm, but the combing effect which appears to hit at 10KHz
Thx for the response.
i have the choice between 2441 and 2450.
I am interested in the difference of the curve with aluminium/truextent between 1.2khz to 10khz. at the moment i drive my 2441 with 2397 from 1.2 to 6.5 and after 6.5 i drive with a Fostex T925. next step is to change to truextent in the 2441, up to 10khz and over 10khz i will change to a Foste T500A MKII.
Hi Richard Long,
Why to change 2441Aluminum diaphragm with anything, I would suggest You to change the 2397, with something like Yuichi A290 or A290S, like Tad TH4003.
I have seen a pair of A290S, seems the price OK
http://www.ebay.de/itm/DIY-YUICHI-A2...item1a04cef872
regards
ivica
@ lee
thx for the curve, the red one looks quite good
@ ivica
i´m thinking about to change the horn but i have to do some tests ... and to buy some different horns
The 2446 diaphragms! I dare to ask, why would you change?
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