Help

[Pigboat]

Came to this Forum with a lot of expectations.
As an Old, retired, Electronic tech, New to JBL's
I came here for help and knowledge.
Hundreds of "views", Really very little technical help.
Other than the DUH responses. Either anyone knowing about
the tech side of speakers(Xovers, Cabinet acoustics, Etc),
is keeping it to themselves, Or I asked the wrong questions,
In the wrong Forum. So I'll move on.
I Don't want to upset, or trigger,
But I have. And I have Apologized

Any feedback or thoughts on subject will be received
and viewed as positive flow of information.

[BMWCCA]

Came to this Forum with a lot of expectations.
As an Old, retired, Electronic tech, New to JBL's
I came here for help and knowledge.
Hundreds of "views", Really very little technical help.
Other than the DUH responses. Either anyone knowing about
the tech side of speakers(Xovers, Cabinet acoustics, Etc),
is keeping it to themselves, Or I asked the wrong questions,
In the wrong Forum. So I'll move on.
I Don't want to upset, or trigger,
But I have. And I have Apologized

Any feedback or thoughts on subject will be received
and viewed as positive flow of information.Gee.
71 posts in about a year and you haven't found Nirvana yet?

Are you an impatient youngster . . . or an impatient old fart?

I've benefitted from significant technical assistance here over many years. I'm sure I'll need more in the near future, and I'll patiently await the expert contributions. Sure, a few have departed, and some don't drop by all that frequently these days, but that's normal. Sometimes Life gets in the way.

Hang out. Even if you don't get the help and knowledge you want, you might be able to impart some. And that should be fulfilling, if you're human!

:cheers:

[1audiohack]

What’d I miss?

I have seen a bunch of chatter about what you did back in the day, which I find very interesting by the way, but I didn’t notice what you didn’t get answered.

I am no expert here but will paw through your posts over the next day or so and see if I can help.

This is a small forum. Some of the other audio forums have more members on line at anytime that we have members in total so take that into account.

I personally hope you stick around a while.

Barry.

[Pigboat]

What’d I miss?

I have seen a bunch of chatter about what you did back in the day, which I find very interesting by the way, but I didn’t notice what you didn’t get answered.

Barry.

L36/L15/4406/4311's


Barry
Thanks

This was from L36,
1 Notice glue was around pots only on xovers just, pry around that area to release?
2 changing out with 035ti's?
3 changes to damping?
4 F ing with port?
5 xover? Rebuilding? Removing pots from system? Active?
6 connectors?

This JBL L15 Refurbish Hi Happy 4th Came across this thread
Any thoughts ?

Help with L15 Refurbish
1) Cabinets, dampening, leave it, add to it, remove/replace it ????

2) 034 Tweeter has lost it's silver paint/aluminum? covering, works, replace, repaint ??

3) Crossover, Cap replacement suggestions
Change inductors to air ?
Change resistors ?
Build external "charged xover" ?
Change xover frequency to 3K(read somewhere?)
4) Change connectors
And anything that will help with project.
Not worried about keeping original.
Just having FUN.
Pair of 4406's after these.


Was looking for basically the same thoughts, more or lees,
on L36,L15, 4406 and 4311.

CHIRP CHIRP CHIRP:blink:
Knowing it was possible for new guy to wander in the wrong forum Thread,
I figured I would get guidance.

Most disappointing,"among others", was feedback,
or lack of,on Xovers. Sound I Know,but it seems Nobody is into
Xovers except sending them out to get upgraded. Or these Models
are not the pick of the litter(Con)?

Maybe just to tech for folks here.(Now that's Condescending)
Being I'm an impatient old Fart, looking for knowledge,
that you would think would be readily found here. But I should have been patient.

"Whirly Bird"(even spelled wrong :)) is what you missed. It was found to be "condescending"
The "Chatter" which I was enjoying, was for those who haven't been around like Wolf and I.
But in such a politically correct world, words are misconstrued, and have way to many
meanings, to different people. To say inter service hazing is condescending, was my trigger,
as I didn't see it coming. I offended, and apologized. I was offended by "condescending".
So end of Bantering. And this is what we see happening in this country.
Whirly Bird is Condescending. LMFAO A Grown,(probably War Hero) man calling,
Whirly Bird, Condescending. As a Submariner, I heard a lot of words for Subs,
Semen Tank, YMCA, Dildo Etc.(And worse)and laughed everyone of them off, actually felt proud.
WORDS, WORDS, WORDS, He/She/Them/Us/Man/Girl/Boy/Women/White/Black.
Getting wound up, so will stop. But you get the jest.




BMWCCA (http://www.audioheritage.org/vbulletin/member.php?3653-BMWCCA)
http://www.audioheritage.org/vbulletin/images/statusicon/user-offline.png

GEE Golly
"As an ""Old"", retired, Electronic tech, New to JBL's" Quote

Since you have such "Tech Knowledge" From "Over the Years"
Never touched a Xover, nothing about up dating dampening, active Xover
etc ???:dont-know:Don't want to share ??:confused:
To Old to wait(have patience).So thanks for the "Advice" Sonny.
(Sort of kind of, Condescending)

And to all a good night. I lose no sleep over this, and my panties are not in a wad.:D
And like I said "A dumb ass old fart in the Wrong Forum":banghead:

Take Her/It/Him/Boat/Ship/Us/Them/She/He/SheHe :) DOWN
Aaooga/Aaooga

[BMWCCA]

To Old to wait(have patience).So thanks for the "Advice" Sonny.
(Sort of kind of, Condescending)

Maybe things have changed. I came here over ten-years ago back when I was just 53. I guess I had enough patience to eventually get to the point of receiving more advice and help (and critiques) than I even asked for! All good though. Now I'm 66 and, when I get some time, will need some help in refurbishing the 4345s I picked up over ten-years ago. I'm sure I'll get good help here.

I think most of us here are old-farts!

[Ed Kreamer]

I hope you stick around, and don't have a thin skin.
there is a lot of help around here, and a lot of opinions. I have found that there are 3 things you do not do say to another man. 1. your dog is stupid, 2 your wife is ugly, and 3 your speakers suck.
If you want to start a kerfuffle, just say to an audiophoole, after he has spent an obscene amount of money on his fearless fosdick speaker cables with polarized hammered unobtainium inserts, (btw never call them wires) were a waste of money.

Speaker systems seem to be 1 part science, 1 part opinion, and 1 part alchemy. So just relax and have fun. BTW I was an ET striker on the Pomodon before I was sh*tcanned in 1967 on a medical. Now there was a REAL pigboat.

Peace, (Shalom) Tranquility and Outrageous Sex. Which at my age is any.

Keep on listening

Ed

[Pigboat]

Maybe things have changed. I came here over ten-years ago back when I was just 53. I guess I had enough patience to eventually get to the point of receiving more advice and help (and critiques) than I even asked for! All good though. Now I'm 66 and, when I get some time, will need some help in refurbishing the 4345s I picked up over ten-years ago. I'm sure I'll get good help here.

I think most of us here are old-farts!

"I've benefited from significant technical assistance here over many years" Quote

and I Said:

""Since you have such "Tech Knowledge" From "Over the Years"
Never touched a Xover, nothing about up dating dampening, active Xover
etc ???:dont-know:Don't want to share ??:confused:""

But I guess your "Significant Technical Assistance" had nothing to do with Cabinet construction and bracing, dampening, Xovers active or passive, connectors, ports, you know, those speaker things.

Hope you live another ten years, being patient, to get feedback on your garage 4345's
If they freely give up info like you, it could be another 10 years.
I have a pair of Paragons in the attic I can't Wait to get down after all these years.
(Now that's Sarcasm)

And even now, only analytical BS.

And with 6 Daughters, I have All the patience in the world.

So ANYTHING Technical to ADD ???

[Pigboat]

I hope you stick around, and don't have a thin skin.
there is a lot of help around here, and a lot of opinions. I have found that there are 3 things you do not do say to another man. 1. your dog is stupid, 2 your wife is ugly, and 3 your speakers suck.
If you want to start a kerfuffle, just say to an audiophoole, after he has spent an obscene amount of money on his fearless fosdick speaker cables with polarized hammered unobtainium inserts, (btw never call them wires) were a waste of money.

Speaker systems seem to be 1 part science, 1 part opinion, and 1 part alchemy. So just relax and have fun. BTW I was an ET striker on the Pomodon before I was sh*tcanned in 1967 on a medical. Now there was a REAL pigboat.

Peace, (Shalom) Tranquility and Outrageous Sex. Which at my age is any.

Keep on listening

Ed

1 She is and so am I
2 She is(But not in my eyes) and so am I in the mirror.
3 She does thank goodness :) and so am I
Time to go get "Outrageous"

6 Daughters, 15 1/2 Grand Kids all down here with me in Tampa Area.
Can hit them with a rock, Lots of Patience, Skin is Portagee So thick,
Like head.

Pomodon Thought I SMELLED a Diesel Boat Sailor. To bad ET's
had some good leading edge electronic training.

Not going anywhere. I mean after stirring up all this shit, I might as well take a beating.

And you never know. Maybe ?? there are some Xover Guys, out there in Forum Land,
who have changed cap values to change Xover Freq, and it's resultant effect.
Like from 2500 to 3K on some JBL two ways.

S/D/R&R
And Peace
Not only from War,
But of Mind.

Pigboat

PS Don't I know you from somewhere ????

[Ed Kreamer]

Me???? Smell like diesel oil???? It was fun hearing all four of those Fairbanks Morse light off on the surface and start pulling in fresh air.

After a patrol we"d hit the showers for as long as it took, and could practically see the stuff running off us.

Atlantic or Pacific?

S/Wine/ Classical Music

[BMWCCA]

"I've benefited from significant technical assistance here over many years" Quote

and I Said:

""Since you have such "Tech Knowledge" From "Over the Years"
Never touched a Xover, nothing about up dating dampening, active Xover
etc ???:dont-know:Don't want to share ??:confused:""

But I guess your "Significant Technical Assistance" had nothing to do with Cabinet construction and bracing, dampening, Xovers active or passive, connectors, ports, you know, those speaker things.

Hope you live another ten years, being patient, to get feedback on your garage 4345's
If they freely give up info like you, it could be another 10 years.
I have a pair of Paragons in the attic I can't Wait to get down after all these years.
(Now that's Sarcasm)

And even now, only analytical BS.

And with 6 Daughters, I have All the patience in the world.

So ANYTHING Technical to ADD ???
Mine aren't garage speakers, they've been in my living room since I got them almost 11-years ago. And I did get plenty of help with some custom crossovers that were diagnosed from pictures as having some wires in the wrong places. And the schematic followed for the crossover build came from this site.

I have three daughters. And I thought I was a combative curmudgeon, until . . .

Fine. Leave. Goodbye!

[Pigboat]

Me???? Smell like diesel oil???? It was fun hearing all four of those Fairbanks Morse light off on the surface and start pulling in fresh air.

After a patrol we"d hit the showers for as long as it took, and could practically see the stuff running off us.

Atlantic or Pacific?

S/Wine/ Classical Music
Atlantic
New London
Holy Loch
Rota
Up around the Ice or Sunny Med:D
I know but even all your clothes reeked:eek:

Excuse me But BMWCCA Has an issue with Me.

[Pigboat]

Mine aren't garage speakers, they've been in my living room since I got them almost 11-years ago. And I did get plenty of help with some custom crossovers that were diagnosed from pictures as having some wires in the wrong places. And the schematic followed for the crossover build came from this site.

I have three daughters. And I thought I was a combative curmudgeon, until . . .

Fine. Leave. Goodbye!

curmudgeon LMFAO Had to look it up. Potty Mouth Gee Golly
What a liberal would call an old Conservative:D
Been called a GadFly. Proud of that.

Not surprised you had your wires crossed. I'm glad you got that "Technical" Problem fixed.
Thanks for helping with mine. Oh that's right you didn't.
Just came back to Stir the pot more.
My take
BMW OOOh
4345''''s AAAAh
CCA ????
Are you inviting me to Leave?:crying:

:D

[Pigboat]

11/155 views
6 Mine

1audiohack

Pomodon

BMWCCA

1 was concerned and, proactive and supportive. Thank You
1 I think is Laughing HAO. Thank You
1 Is Condescending, Arrogant, Unproductive, Patronizing, Etc. Etc.
Who brought Nothing to the table. And Thank You
140+ Just Looking :D
:dont-know:

But as I had it explained to me, Just Be Patient. Lots of that.
RWBW

[Mr. Widget]

Perhaps there are others like me who have nothing constructive to offer? I have had zero experience with the the L36 and in general have had little experience with JBL’s that didn’t or don’t use compression drivers up top.


I hope you get the advice you need to get them running satisfactorily.



Widget

[pos]

I have found that there are 3 things you do not do say to another man. 1. your dog is stupid, 2 your wife is ugly, and 3 your speakers suck.
Fortunately science is moving forward: these days you can already clone better versions of two items in that list :D

[Mitchco]

Not the same JBL's but I run 4722 Cinema speakers using a digital active crossover (https://audiophilestyle.com/ca/ca-academy/audiolense-digital-loudspeaker-and-room-correction-software-walkthrough-r682/). What are you using as a music source? Is there a computer involved? If so, you may be interested in going digital XO. A bit of a primer here: http://www.acourate.com/XOWhitePaper.pdf A much more detailed response is in my sig.

Another member here, pos, has developed software that can also generate digital XO's: https://sourceforge.net/projects/rephase/

[pos]

Hello Pigboat,

I am no expert, especially with things like cabinet construction/refurbishing and passive crossovers, and I don't own any of these speakers.
I also have no daughter, so take my opinions with a grain of salt, but here is what I would gather from what I read around here among the years.



This was from L36,
1 Notice glue was around pots only on xovers just, pry around that area to release?
2 changing out with 035ti's?
3 changes to damping?
4 F ing with port?
5 xover? Rebuilding? Removing pots from system? Active?
6 connectors?



1: leave it alone unless you hear or see problems
2: no need unless a problem occurs, and probably not beneficial without a crossover modification (measurement, simulation, etc.). If the 035 was cited as a replacement part by JBL that probably just indicates that the original driver was NLA at the time and the 035 was a sub optimal solution (NLA as well these days)
3: No
4: No
5: rebuilding is probably overkill but you could replace the caps and pots. Zilch posts come to mind for more info
6: you can clean them if they are oxidised, and replace them if you need to install bigger wires and/or different types of connectors


This JBL L15 Refurbish Hi Happy 4th Came across this thread
Any thoughts ?

Help with L15 Refurbish
1) Cabinets, dampening, leave it, add to it, remove/replace it ????

2) 034 Tweeter has lost it's silver paint/aluminum? covering, works, replace, repaint ??

3) Crossover, Cap replacement suggestions
Change inductors to air ?
Change resistors ?
Build external "charged xover" ?
Change xover frequency to 3K(read somewhere?)
4) Change connectors
And anything that will help with project.
Not worried about keeping original.
Just having FUN.
Pair of 4406's after these.
1: leave it alone
2: any covering would probably alter the weight and overall behavior more than the original one, or its absence
3:
caps: any good cap that fits and is in your budget. Parts express has all the majors brands, along with opinions
inductors: no reason to change (does not wear), and changing them would alter resistance and change xover behavior
resistors: no reason to change (does not wear)
charge coupled: probably overkill, but member 4313B did it (and posted a dedicated thread about it) with similar sized speakers, apparently with great success.
change xover fc: why?
4: parts express

Any of the speakers in your list would probably call for the same answers.
All the info you seem to look for is already on these forums, you just need to search for it (possibly using google with a site:audioheritage.org query), and discover new things along the way

hope this helps

[johnlcnm]

Me???? Smell like diesel oil???? It was fun hearing all four of those Fairbanks Morse light off on the surface and start pulling in fresh air.

After a patrol we"d hit the showers for as long as it took, and could practically see the stuff running off us.

Atlantic or Pacific?

S/Wine/ Classical Music

First, I apologize for another derailment. OP-38s? How many cylinders? Question from an X-Birdfarmer. OP-38s used in the carrier, The FDR, back up generator room.

[Pigboat]

Fortunately science is moving forward: these days you can already clone better versions of two items in that list :D

Like These:blink::eek::applaud::D;)

[Ed Kreamer]

Colleagues,

Sorry about the derailment, Mia Culpa. This will be my last addition to that: The motors were 10 cylinders opposed. On 22 Feb 1967, instead of breathing the fresh air of freedom I spent the the next 10 years trying to ruin my health, mentally and physically. It took a good woman and the threat of going to jail to wake me up. Because of this poor behavior, my memories of the 60's and 70's are at best misfiled. Not exactly proud of this but there it is.

I got lost on a carrier once at Hunters Point.

Now back to JBL/ Altec stuff.

[SEAWOLF97]

Colleagues,

Sorry about the derailment, Mia Culpa. .

Ed ... sometimes the OT posts are the most enlightening ;)


On 22 Feb 1967, instead of breathing the fresh air of freedom I spent the the next 10 years trying to ruin my health, mentally and physically. It took a good woman

I only spent 6 years trying (68-75).... have had a wonderful woman change my life since 1972.



I got lost on a carrier once at Hunters Point.


My last duty station was aboard a carrier (CVA-64) . Even after 18 months on "Connie", I would still get lost, daily. :blink:

I'd get a call "accident on deck 7-frame 12 (or some such) , grab a camera" ..go do to deck 7 .. well you can't get to frame 12 from where you are, go up to deck 4, cross to frame 19, then all they way down to deck 8, then up to 7, back to 32, take a port turn and follow up to 12, good luck retracing to get back". so many voids & dead ends

(but I cheated when going back to my rack, took the pilots escalator up to the second and then down to the third where I lived)

-deck numbers changed to protect the innocent-




oh wait, there were no innocents... :eek:

[Pigboat]

Perhaps there are others like me who have nothing constructive to offer



Widget
As I Travel through these Forums, I find a LOT of that(Like BMWCCA:D):dont-know:
With "nothing constructive" trying to be, and injecting. Does not help.
Chris Brown's post was the exception Thanks Chris, as was Don C.
Thanks DC

Thank You Mr Administrator
Didn't set out to shit on your porch, as you have enough of that in SF now.:blink::crying:
Lived in area 1955/1959/1967-69 and dropped by last year for 3 days.
Many nights at Filmore West and Winterland.

Because of $$$$$$$ involved, these forums turn into
Who's got the Biggest Dick.
My Dick is bigger than yours.
No help with L15's but my 4345's...Who gives A.

Realizing my search habits are misguided, as I just ask questions, usually after frustrating searches.
For which I get this Condescending quote,
"All the info you seem to look for is already on these forums, you just need to search for it (possibly using google with a site:audioheritage.org query), and discover new things along the way":blink:
Lot of NEW to forum, get turned off by this. If you have knowledge provide such knowledge,

Or be like my MOM, "Go Look It Up Yourself.:blink:

So search this site
L-15, Sorry - no matches. Please try some different terms.
L36 Sorry - no matches. Please try some different terms.
4311 Sorry - no matches. Please try some different terms.
I Guess I need to be REALLY specific, and use diff terms, such as
Has anybody changed the Xover point on L15's from 2.5K to 3K?
and if so what cap values used? And thoughts on results.

But not the point
It took a post, that was not really positive, or not tasteful in some opinions,
to generate a semi helpful, curt response. Granted by this time I may have deserved it.:D
My observation has been, Audiophiles are Prudes, usually old and prosperous.
This Cult of is detrimental to the New Individuals, stepping in to the Litter Box.
As I've gotten older, I can see the veins in my arms.
Must mean my skin is not as thick as it used to be.

Apologize for what has offender, and for those who deserve it.
Will continue to look for knowledge on site, and cull some friends
who like sea stories, who have walked the walk, and enjoy the music.
I see updates so will hop back into the Litter Box
Will try not to be a "curmudgeon" LMFAO

[Pigboat]

Not the same JBL's but I run 4722 Cinema speakers using a digital active crossover (https://audiophilestyle.com/ca/ca-academy/audiolense-digital-loudspeaker-and-room-correction-software-walkthrough-r682/). What are you using as a music source? Is there a computer involved? If so, you may be interested in going digital XO. A bit of a primer here: http://www.acourate.com/XOWhitePaper.pdf A much more detailed response is in my sig.

Another member here, pos, has developed software that can also generate digital XO's: https://sourceforge.net/projects/rephase/

Why thank you.
Nice Avatar Year ?

My source both analog and digital. Will look into that aspect for Xovers
Would be a lot easier to cut out the middle man(physical XO).

Thanks for constructive input.
Refreshing.

[Pigboat]

Colleagues,

Sorry about the derailment, Mia Culpa. This will be my last addition to that: The motors were 10 cylinders opposed. On 22 Feb 1967, instead of breathing the fresh air of freedom I spent the the next 10 years trying to ruin my health, mentally and physically. It took a good woman and the threat of going to jail to wake me up. Because of this poor behavior, my memories of the 60's and 70's are at best misfiled. Not exactly proud of this but there it is.

I got lost on a carrier once at Hunters Point.

Now back to JBL/ Altec stuff.

I got lost for 3 months when they threw me down the hatch into AMR-1
Maybe it was no sleep for 3 months
Got lost on tender looking for GeDunk stand:D

[Pigboat]

First, I apologize for another derailment. OP-38s? How many cylinders? Question from an X-Birdfarmer. OP-38s used in the carrier, The FDR, back up generator room.


Fairbanks-Morse 38 8-1/8
AMR2 aft of Reactor Compartment.
Reactor Backup, in case of SCRAM
Used for propulsion and as Diesel Generator

Qualification Question:

You are a drop of diesel fuel on the pier.
Make it turn on your bunk light.:confused::blink::D
or
Your the Core in the Reactor,
Make the propeller turn.

And not just talk,
You had to walk it through.

FDR Floating City. BIG Target:D

Sub Sailors Go DEEPER Stay LONGER:p

[johnlcnm]

Box Sound Damping. The JBL boxes I have seen use damping sparingly. Usually two inches thick on back and sides. None on the front. The idea is to keep the box Q as high as possible. The T/S base alignment is usually done using a box Q of 7 for small boxes and a Q of 5 for the larger boxes. Look for 2 inch stabilized fiber glass with no backing. The big box stores usually sell it in small rolls for door and window installs.

[pos]

So search this site
L-15, Sorry - no matches. Please try some different terms.
L36 Sorry - no matches. Please try some different terms.
4311 Sorry - no matches. Please try some different terms.

The forum search engine has its limits, but as explained in my post above (#17, did you actually see it ?..) you can use google (and google image) for a site-specific search.

[Pigboat]

The forum search engine has its limits, but as explained in my post above (#17, did you actually see it ?..) you can use google (and google image) for a site-specific search.Love you technical advice.Yes No MaybeWhy (#17, did you actually see it ?..) YesThanks for the helpHave a nice day