Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Multi-Way Conventional loudspeakers with crossovers

Refurbishing  JBL 4310 and 4412
Refurbishing  JBL 4310 and 4412
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 29th December 2017, 02:43 PM   #1
Blaukomma is offline Blaukomma  Germany
diyAudio Member
 
Join Date: Feb 2014
Location: germany
Default Refurbishing JBL 4310 and 4412

Hi guys,
i got a pair of 4310 and a pair of 4412 last week, which both need a little bit of love to look fine again...

What if already done:
  • repaired all 8 Tweeter/Midrange potentiometers
  • removed all dents in the tweeter protections
  • ordered new surrounds for the 128H-
All drivers are in an awesome condition, no scratches no dents but the cabinets..


Both pairs got painted black.. well this is what i thought first but know i`m wondering about the 4310:


The black finish of the 4310 looks not really good, you can see and feel lots of brush structure. On one bottom side i tried carefully to sand the black finish away. With P240 i sanded through the black topcoat and through a white primer until i reached wooden coloured material. I was expecting some nice walnut veneer but the layer i reached under the primer is just a completly structureless tan surface?! I first thought i directly sanded through the veneer and reached the chip board but its not the chipboard.


So what kind of finish do i really have here?! Was there an ex factory Black Version of the JBL 4310?
I first thought i got that rare grey/white version and the white color is no primer but the old finish but the baffle is also painted black and thats the original colour.

And what would you do now? There is no veneer i can refurbish.. Should i just sand back the surface and repaint it black? Or completly sand down to chipboard and reveneer it with a nice walnut veneer?

I`m gonna sell the 4310 so i would love to know what you think sells best!

And i will upload a picture of the different layers of paint..

Sorry for my bad english and greetings from germany!
Attached Images
File Type: jpg 2017-12-22 14.59.18-1.jpg (598.1 KB, 280 views)
  Reply With Quote
Old 29th December 2017, 03:15 PM   #2
wesayso is offline wesayso  Netherlands
diyAudio Member
 
wesayso's Avatar
 
Join Date: Jul 2007
Searching for Kenrick JBL 4310 pictures might give you something to pick from.

They have had almost all combinations pass their shop. A quick scan trough some of the options seems to indicate the grey finish has the viewer's preference. (most likes)

At least some of them seem to have painted finishes...
Refurbishing  JBL 4310 and 4412

Refurbishing  JBL 4310 and 4412

Refurbishing  JBL 4310 and 4412

Refurbishing  JBL 4310 and 4412

Click the image to open in full size.
__________________
Use Science to design your speakers and they will sound like a piece of Art...

Last edited by wesayso; 29th December 2017 at 03:27 PM.
  Reply With Quote
Old 29th December 2017, 03:29 PM   #3
Blaukomma is offline Blaukomma  Germany
diyAudio Member
 
Join Date: Feb 2014
Location: germany
Repaint it grey is another good idea but i would feel a bit guilty selling a grey pair while knowing it never was grey..

But i think you got me.. I think i will repaint them in RAL7038
  Reply With Quote
Old 29th December 2017, 03:39 PM   #4
wesayso is offline wesayso  Netherlands
diyAudio Member
 
wesayso's Avatar
 
Join Date: Jul 2007
Probably a good option in this case
Click the image to open in full size.

Refurbishing  JBL 4310 and 4412
__________________
Use Science to design your speakers and they will sound like a piece of Art...
  Reply With Quote
Old 29th December 2017, 03:41 PM   #5
globalplayer is offline globalplayer  Germany
diyAudio Member
 
globalplayer's Avatar
 
Join Date: Oct 2014
Location: =)
RAL
Reichs-Ausschuss für Lieferbedingungen...
Did not know that.
__________________
◢◣◢◣◢◣◢◣◢◣
  Reply With Quote
Old 29th December 2017, 03:55 PM   #6
Blaukomma is offline Blaukomma  Germany
diyAudio Member
 
Join Date: Feb 2014
Location: germany
Already fallen in love with that grey finish.
I will upload some photos when i'm done.

Thanks for your advice!
  Reply With Quote
Old 29th December 2017, 07:52 PM   #7
wesayso is offline wesayso  Netherlands
diyAudio Member
 
wesayso's Avatar
 
Join Date: Jul 2007
I hope you're still willing to sell them if they turn out as beautiful as these from Kenrick.
Looking forward to see your results.
__________________
Use Science to design your speakers and they will sound like a piece of Art...
  Reply With Quote
Old 29th December 2017, 08:04 PM   #8
Blaukomma is offline Blaukomma  Germany
diyAudio Member
 
Join Date: Feb 2014
Location: germany
I`m pretty sure they will not look like these from Kenrick but i have to choose one of the pairs to sell and the 4412 sounds better, so the 4310 have to go.
Sanding is a hell lot of work. Seems to be quality paint..
  Reply With Quote
Old 29th December 2017, 08:24 PM   #9
wesayso is offline wesayso  Netherlands
diyAudio Member
 
wesayso's Avatar
 
Join Date: Jul 2007
So what are the plans for the 4412?

Click the image to open in full size.

Refurbishing  JBL 4310 and 4412
__________________
Use Science to design your speakers and they will sound like a piece of Art...

Last edited by wesayso; 29th December 2017 at 08:27 PM.
  Reply With Quote
Old 30th December 2017, 06:42 AM   #10
Blaukomma is offline Blaukomma  Germany
diyAudio Member
 
Join Date: Feb 2014
Location: germany
They got overpainted too. I will again try to sand down to the walnut veener (i think its still visible through the Paint. If i have success - fine. If not, i will reveneer them. Maybe with swampoak and a high gloss finish.

But first they get new surrounds and a listening sessions!
  Reply With Quote

Reply


Refurbishing  JBL 4310 and 4412Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
JBL 4412 cab modification. Possible? honkyjonk Multi-Way 15 10th February 2017 08:37 PM
JBL 4310 KenHoard Swap Meet 0 20th November 2015 01:07 AM
mounting jbl 4412 speakers from ceiling lexx21 Multi-Way 1 1st August 2015 09:11 AM
JBL 4310 fiberglass behind mid-driver paulnparis Multi-Way 23 17th September 2011 05:07 PM
jbl 4310 - bad bass paulnparis Multi-Way 13 8th April 2009 10:18 PM


New To Site? Need Help?

All times are GMT. The time now is 01:36 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki