gonzomeep
Super Member
LMFAO!
New to me JBL 240Ti
- Thread starter Sound Dragon
- Start date
-
- Tags
- jbl 240ti
LMFAO!
jblnut
Don't Overthink It
Some don't suffer fools that's for sure 
. But we're a good bunch of JBL-heads over there and will always help out those who come looking to learn. And Heather is certainly right in pointing out the HUGE wealth of accumulated knowledge available if you have the time and patience to search it out.
jblnut
. But we're a good bunch of JBL-heads over there and will always help out those who come looking to learn. And Heather is certainly right in pointing out the HUGE wealth of accumulated knowledge available if you have the time and patience to search it out. jblnut
Sound Dragon
Yawns and sets his couch on fire!
I appreciate all the guidance and help from the folks here. I also get that it must be tiring dealing with what may seem to be the same questions over and over again. While I understand that most things are searchable and that the answer is probably in section 5 of volume 3 in between posts 8-13. Sometimes its nice to engage in conversation and learn directly from the sources. In my case this is a labor of love and I am not someone looking to flip these for a quick buck. I also genuinely have no prior restoration experience which is why I am farming out a lot of the restoration tasks I cannot do. It is nice to have a place where you can banter and ask questions and not be instantly slammed for lack of knowledge. If we do not foster and share this stuff, our hobby will suffer.
I have decided to keep the cabs a little rough for now. I will do a deep clean on them when I have a rain free weekend and do the Howard's treatment but that will be all for now. With a little one still running around I would be devastated to go through the effort of restoring the cabinets to come home to a Crayola Original masterpiece. I am in a holding pattern for the grills while the folks tinker with making them from scratch. Not sure what goes into making grills, but my lack of skill prevents me from passing judgment. I will be glad when they are available. I wonder what color I should go with?
I have decided to keep the cabs a little rough for now. I will do a deep clean on them when I have a rain free weekend and do the Howard's treatment but that will be all for now. With a little one still running around I would be devastated to go through the effort of restoring the cabinets to come home to a Crayola Original masterpiece. I am in a holding pattern for the grills while the folks tinker with making them from scratch. Not sure what goes into making grills, but my lack of skill prevents me from passing judgment. I will be glad when they are available. I wonder what color I should go with?
tonyk
Super Member
Looks good Sound Dragon.
Just a heads up, dust caps for the mids are available here...https://www.midwestspeakerrepair.com/jbl-le5-and-104h-midrange-aluminum-dust-cap
It's an easy 10 minute repair with the use of a hair dryer. I recently replaced both dust caps on some 4312's, it was easy peasy.
Just a heads up, dust caps for the mids are available here...https://www.midwestspeakerrepair.com/jbl-le5-and-104h-midrange-aluminum-dust-cap
It's an easy 10 minute repair with the use of a hair dryer. I recently replaced both dust caps on some 4312's, it was easy peasy.
brettMc
New Member
Hello Gonzo,
To be brief. I am about to dive in on refurbishing/upgrading crossovers and 'tone pots' on my JBL 4312a Control Monitors. Love these speakers but they can be crazy harsh.
Questions are:
1) what tone generator and/or impedance tester do I need to test speakers?
2) is there a list of what parts/tools that are needed for these upgrades (caps, resistors, wires, solder, pot cleanup)? Perhaps a step-by-step?
3) are the mids out of phase on these and do the woofers run full-range? Any advantage to brining all drivers into phase?
4) are there any suggested edits/additions to cabinet dampening?
5) is there a ribbon tweeter that could be easily swapped in on these monitors?
6) what about using an external tunable crossover with these monitors?
Your guidance is sought.
Many Thanks,
Brett
To be brief. I am about to dive in on refurbishing/upgrading crossovers and 'tone pots' on my JBL 4312a Control Monitors. Love these speakers but they can be crazy harsh.
Questions are:
1) what tone generator and/or impedance tester do I need to test speakers?
2) is there a list of what parts/tools that are needed for these upgrades (caps, resistors, wires, solder, pot cleanup)? Perhaps a step-by-step?
3) are the mids out of phase on these and do the woofers run full-range? Any advantage to brining all drivers into phase?
4) are there any suggested edits/additions to cabinet dampening?
5) is there a ribbon tweeter that could be easily swapped in on these monitors?
6) what about using an external tunable crossover with these monitors?
Your guidance is sought.
Many Thanks,
Brett
Making nice progress and it's good to hear they are sounding good!
Beautiful work on the woofers!
So I am late to the party on this thread. You still looking for grills? Though I have repurposed my components of my pair of JBL 240ti's, I can create a template for you if you like. Let me know. Not sure where you stand with these in the rehabilitation but I was able to find NOS recones for my mids over the last couple of years, you just have to be patient. My LE14H-1's were expertly reconed with aftermarket kits by Upland Sound as well. Had to as mine were bare frames only when I bought them.
I know its been nearly 2 years since Sound Dragon paused his version of this thread,
but if things go well, I'll get his speakers and take over this project later this week
(Pony Delivery is being sorted out even as we speak!).
My part of this thread continues here:
https://audiokarma.org/forums/index.php?threads/new-to-me-jbl-240ti-phase-2.870095/
but if things go well, I'll get his speakers and take over this project later this week
(Pony Delivery is being sorted out even as we speak!).
My part of this thread continues here:
https://audiokarma.org/forums/index.php?threads/new-to-me-jbl-240ti-phase-2.870095/
Last edited:
