Get a life! https://www.audioheritage.org/vbulletin/images/smilies/biggrin.gif
Type: Posts; User: bubbleboy76; Keyword(s):
Get a life! https://www.audioheritage.org/vbulletin/images/smilies/biggrin.gif
Maybe you can try some temporary thick damping on the walls close to the speaker, just to see what happens.
I would gain from it myself I think, but I can not do it due to WAF, so I don´t want to...
Really cool. Nice work.
Nice measurements as well.
I would angle the L and R more inwards to reduce SBIR from sidewalls a bit, but that's just me.
This is so cool :)
If you get any 045s over when you are finished, I might be interested. One of mine 045Be are faulty.
Very fun to follow this project, subscribing to this thread now! I wish you good luck.
What is the rough timetable, will it be ready for Christmas?
Please tell us about all family compensations...
I love this. Thanks for sharing.
My wife also tells me that all the time. Yeah, I should probably do that!
One of my UHF-drivers still have an issue at 6k-8k. My service-guys tried to fix it, but did not succed.
I crossover HF/UHF 96dB/oct Linkwitz Riley at 10KHz. I hope this avoids that problem mostly....
Holy cow!
What is the weight of these things?
There are fine components in 4365-crossover, as far as I know.
The problem, to me, is that the HF part has no lowpass-filter. This causes HF to play the same register as UHF all the way up to 20KHz....
But I am not at all sure that humidity is the problem causing this.
Might be something else.
4365 might have been manufactured and/or stored in a humid environment.
As far as I know, 4365 and the parts like 476Mg is assembled in Mexico.
Is Mexico humid?
I think we have had this discussion before, were I claim that 4365 crossover probably was somewhat ”detuned” to not make 4365 sound too good relative K2 and Everest.
I have active crossover, so I do not care about that. I can just remeasure and make new EQ-settings. I meant if the TrueExtent Be dia fits and works technically in the 476-core.
Can TrueExtent Be diaphragms be installed in the 476Mg core?
Replacing with TrueExtent Be diapraghms would solve the problem, you think? Or are other parts likely damaged/corroded as well?
My service guy told me only diaphragm was affected.
What was JBL response? Did they get new drivers?
I am waiting on answer.
Seems to me like incompatible metals are used togheter, causing galvanic corrosion.
Pic of one of my 476Mg diaphragm (to the right) after cleaning.
Both my 476Mg were heavily corroded on the diaphragm. They were cleaned, and measured like new. But still looks like shit.
I have picture somewhere.
So this is a general problem. I will contact my...
I am using the THX AAA 789 on my 476Mg, and it does wonders! :bouncy:
I have the exact same thoughts. I will test som other dac later. But I do not expect any large improvements. More of the "peace of mind" thing.
I watch the ocean to read my volume setting, judging the size of the small tsunamis produced by the quadruple 15" woofers!
Thanks!
The guitar is nothing fancy. It is a DeArmond M-75T Champagne Sparkle.
Sweet music is playing.
Does anyone know the crossover points and slopes of this speaker? A graph of the acoustical target curves per driver/element would be nice to see. Or the voltage drive of the crossover networks.