JBL 2397 Curves

[Dr.db]

I´ve listened to the 2445 with titanium dia´s and didn`t like them as they tend to sound harsh...

I know the 2446 dia´s have ripple´s to stiffen the dia but they are still titanium.

[ivica]

I´ve listened to the 2445 with titanium dia´s and didn`t like them as they tend to sound harsh...

I know the 2446 dia´s have ripple´s to stiffen the dia but they are still titanium.

Hi Dr.db,

Any of them up to 10kHz, are relatively smooth, and FR response has 'bouncing' mainly influenced by the applied horn (length, shape, mouth "termination").
If you would to use it over 10kHz, then 2441 AL would be the best, then 2445 and the last 2446.I would not suggest Radian 1245 over 10kHz. SL and Be(Trex), may be can be used up to 14kHz. That are my personal experience, based on the higher resolution measurements, as You can see here on my the forum posts.
2446 diaphragm (ribbed) does not break too much up to 12-13kHz, but at the higher frequency its FR 'bouncing' is much larger the 2445 diaphragm (non-ribbed).

regards
ivica

[Ian Mackenzie]

I always mounted a 2405 slot under the bottom lip and it worked fine,

Without the 2405 it sounded muffled regardless of any EQ.

[Dr.db]

@ ivica: Have you had the chance to compare 2440 with 2441 diaphragm below 10khz ? Any advantage of the 2441 below 10khz ? Has it less distortion?

[ivica]

@ ivica: Have you had the chance to compare 2440 with 2441 diaphragm below 10khz ? Any advantage of the 2441 below 10khz ? Has it less distortion?

Hi Dr.db,

No, I have no opportunity to see, neither to measure 2440 driver.
Owing to it shape of aluminum suspension I would expect that it can
easily reproduce lower frequency mirage, but from the JBL data
2441 would easily reproduce sound even over 10kHz.
may be interesting:

http://www.diyaudio.com/forums/multi...ml#post2028009


regards
ivica

[Dr.db]

Thanks for the link