Jbl 2446h Vs Radian 950
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Style='display:inline-block;width:728px;height:90px'data-ad-client='ca-pub-649157'data-ad-slot='Ever since hearing the «baby butt cheeks» or «Dolly Parton» horns in good old vintage JBL 4430 studio monitors (depicted in my brother's living room above) I've been lusting to hear one of the JBL pro series' «big asses». That time has finally come – in the form of JBL 2360A horns.:DThey will be set up with a pair of 2446H compression drivers. These drivers have a 4' diaphragm and a 2' exit, so they do need some help up top and expected crossover point is between 7-10 kHz. Diaphragms for large format JBL driversHad a look at the diaphragm and it's probably the original back from 94 as some markings on around the voice coil indicates.
These things were built to last and it's going to be really exciting to see how they fare in terms of sound quality. On that note, let's talk about the diaphragms' spectral decay and potential fatigue due to ringing. Style='display:inline-block;width:336px;height:280px'data-ad-client='ca-pub-649157'data-ad-slot='Rumor has it that these titanium diaphragms have some very fatiguing ringing. Hope is that some of it may be avoided by crossing them over a little lower and worst case is having to change the diaphragm into very expensive.A cheaper option would be. It's probably good for the price, and my personal experience with aluminum is good, but I'm very curious to learn the price of Truextent's new TF-25 diaphragm because as we can see from the spectral decay above, it rids you of most ringing around 10 kHz.As I've got a very capable bass system that can do 60 Hz and down with authority the plan this far is to utilize a pair of JBL 2226's for midbass and midrange, maybe throw in a 2123H 10' midrange to avoid early beaming and being able to cross the horns over a little later. Above the horn and for the ultra high frequencies I'm contemplating something nice from Fostex or using a pair of JBL 2405 I'm fortunate enough to own.
Jbl 2446h Vs Radian 950 Driver
For crossovers, filters etc I will be using miniDSP 4x10 HD and amplification will be a mixture of the Anaview amps I have built and continue to build as well as other things I have sitting around. Trying out a three way concept with 2445J and 2 x 2226HThis is a 2445J compression driver with what I think may be a JBL 2380A horn together with a pair of 2226H drivers in small sealed(!) enclosures. Although the audio quality isn't stellar as of right now it's lots of fun to say the least.:)The biggest issue is crossing the horn over at 1 kHz and having the 15' play all the way up, hence why it would be nice to add something like the 10' 2123. I pushed the compression driver to the limit and set a second order filter at 500 Hz, that improved things greatly, but it seems like I need to improve upon the enclosure one of the 2226's sits in. They are heavily damped and it works great for bass, but maybe not so much for the highs? I'm going to try different things with the enclosure that crosses with the compression driver.The current setup does show a lot of promise though and it's very dynamic and punchy, just the way I like it!:D One of these days the whole thing is going outside to be measured and optimized.
Jbl 2445h
Audible noise! MiniDSP!#X@!Unfortunately noise has become an issue due to the high sensitivity of these compression drivers.
Jbl 2446h Vs Radian 950 3
MiniDSP is notoriously known to be a noisy culprit and I suspect it's no different here.Really need to try one of those linear power supplies to see if things improve one of these days and particularly enjoy the character of this horn and if the big 2360A horns doesn't pan out I suspect getting another 2446 driver and four more 2380A horns, put 2446H in LCR and 2445 as rear channels:D. Sick setup you've got!Personally and subjectively I think 2226 performs best between 40-500 Hz, but I cross them over at 800 Hz as I have not yet implemented 2123.Right now I use 1 x 2226 from 60-200 and 1 x 2226 from 60-800 Hz, then 2446 in 2360A from 800-10kHz, then 2404 from 10kHz and up. It works very well, but I think that 2123 between 2226 and 2446 may raise the bar even further.Adding 2404 was a huge improvement in the highs compared to 2446 doing 800 and up all alone. Night and day difference and 2404 was def worth it.