Hello
Well, if you know the exact frequency cut off and only play it on the 15 '', note the level in dB or dBA. Then you increase the power of 8 '' until you have + 3 dB or dBA that goes. Then...
Type: Posts; User: B&KMan; Keyword(s):
Hello
Well, if you know the exact frequency cut off and only play it on the 15 '', note the level in dB or dBA. Then you increase the power of 8 '' until you have + 3 dB or dBA that goes. Then...
hello again,
be shure your project to replica of crossover keep factor of the change the recone 2235 in basket of 2231 , same as 10 and horn. the original design is better with original driver...
hello,
the small difference is relevant on power output. this type of crossover came with a pot jbl fine tune ouput. so normally it is fine...
:cheers:
Hello,
I understands that you reproduced that partly the original circuit of JBL 3143??
if it is the case, you will butt yourselves like me to the hollow between the 15 and the 10. However you...
mmmmmmmmmm
are you ready for an earthquake??
maybe yes but your CD rack and your turntable surely not :D
nice and real stuff.
play loud and look !!!
Hello,
Well, well, well,
acoustic treatement is really complex :D
No exist ideal room size but exist less poor size room... :applaud:
first , 2 separate problems in same expression.
I wanted simply to add another information... The integration of the delay of the 2405 in the 4343 is bad it is necessary to put a delay of 0.613 ms approximately. If you use an active network which...
Hello with all, I arrive at the end of this other eternal problem of the polaity and the phase in the 4343... My experiment of the 2231 shows clearly that it has better an extension of the high...
the rule is simple : hard as possible and maximum weight & stability stand create a real better transfert impact and less coloration.
I invite you to keep a few time to explore many many points on...
here : the test difference after (upper graph) and before cancel switch of bi-amp on back of the 4343
http://www.audioheritage.org/vbulletin/showpost.php?p=52144&postcount=113
OH NO !!!!
Eternal drama...
I'm called JBL In california headquarter on this question and the red post is really positive signal and black is negative signal...
the reason why the driver...
Sorry for my poor english but I smell a couple of idea to help you.
First your wood stand under 4343 is bad principe and unstabilize the speaker.
2-- the speakers is go down freq realy more...
Well, very hard job here, just 2 cheaps words to explain my great thanks for your gift of the big amount of critical informations/experiences into this thread.
You have put a big amounts of...
Oh yes!!
the first hand information is all the time better, especially from the first master ingeneer JBL... thanks Mr. Timber.
Many juice in few words, mmmmmmmmmmmmmm
:applaud: :applaud:...
mmmm I hope you not make a nightmare psycho bass killer :applaud:
iiraaarrrrrgrhhhllllll
I explain more serious methods.
keep any shareware who create a pure tone sweep gently or try to...
OK DOKAY, if you have try -it all and you have problem again check this solution...
first you understand the risk of diagnotic and the erratic solution via over sea ;)
of course with intensity...
well problem problem...
fix variables.
---test tone or music :
try with excellent quality headphone to compare signal speakers and headphone for detect problem performance driver, network,...
mmmmmm.... maybe the headphone position is better :barf:
Hello, please push more details explanation if you wish help...
p.s. your speakers is a BIG BIG BIG speaker...
the integration in room is really triky.
do you have any instrument mesure ??...
the intensity Power is drop of 3 db by double extension space. !!
THIS is a pysical law ... try !!
(and I'm not touch the point where the level of power vibration your speaker is put in the...
Hello,
Your wish is impossible
any room is particular and the complete rule is complexe and need a specialise instruments who rarely person buy or rent.
but maybe hint is help you... the...
Hello Leif, (and baldrick )
You have a beautiful piece and excellent system. Your problem is integration acoustic rule in your set-up. The speaker on the floor create more pressure in bass (6...
Hello,
My comprehension on why JBL is only glued magnet is :
the magnet is fragile material. the best perfect conctact to magnet and metal pole piece, the better than. Normally the metal...
as you wish ZilchMaster
:D
Hello Earl,
I try to explain my informations found in book, maybe help maybe not...
is explain formula for a constant impedance.
see pict...
:cheers: