Jbl control 12 sr [Archive] - Lansing Heritage Forums

JBL 4645

07-22-2011, 11:08 AM

Whoa at last finally I got myself a pair of JBL Control 12 SR after waiting for years (make that 20 years)…!:bouncy:

This has been strange week with the retirement of the US Space Shuttle a flea collar for Sooty who hasn’t calmed down in 2 days now and getting an ebay error after buying JBL Control 10 can only be described as the seller sold them ether privately or was listed on another site and he merely forgot to update the ebay listing?

He did however have pair of used I should say so, JBL Control 12 SR that looked like they have been on rough gigs or one rough night club!?

I have run wideband pink noise dts CD demo disc and looked at the RTA and all sound fine! I’m running then on the Alesis RA300 I had to undo the LF cable to Control 5 left and right and set the crossover to full scale on the LF on DCX2496 and switched PEQ to off.

They’re on the living room floor for now as I have nowhere else to place them. The baffle wall will be removed and I’ll make a new baffle wall soon a kinder mkII baffle wall ::D

I like the sound and I’ve only heard them briefly in summertime of 1990 at local music pa store that is now closed down.

The sound isn’t brittle or harsh sounding its easy on the ear that I can still hear up to 16KHz thou faint I can still hear!

The lows mids and highs make up for nice control sound reinforcement with little power being used up as I can see this on RA300 barograph display. SPL db peaks with John Williams and the famous LSO STAR WARS disc 2 “throne room and end credits” reaches comfortably around +90dbc some parts of the score hit me stomach and chest and the control 5 would have been a little less due to its size.

One thing about the passive crossover that will be changed soon could be today along with removal of the plasterboard that is only screwed up into timber. So what order is the passive crossover and I guess the XLR phone are for input and output to a passive sub which is my best guess I don’t have the owners manual for these? Much less the Control 5 as I brought them without the box years ago.

I haven’t seen any users’ manual on Google?

http://www.audioheritage.org/vbulletin/attachment.php?attachmentid=52160&stc=1&d=1311354036

So anyone any ideas on what order the crossover is they do sound choice in my living room and maybe in other living rooms maybe a lot more or less?

Yes, yes, yes I like them! It’s been worth the long wait!

http://www.audioheritage.org/vbulletin/attachment.php?attachmentid=52151&stc=1&d=1311345513

http://www.audioheritage.org/vbulletin/attachment.php?attachmentid=52152&stc=1&d=1311345519

http://www.audioheritage.org/vbulletin/attachment.php?attachmentid=52153&stc=1&d=1311345630

http://www.audioheritage.org/vbulletin/attachment.php?attachmentid=52154&stc=1&d=1311345657

http://www.audioheritage.org/vbulletin/attachment.php?attachmentid=52155&stc=1&d=1311345833

http://www.audioheritage.org/vbulletin/attachment.php?attachmentid=52156&stc=1&d=1311345863

JBL 4645

07-22-2011, 11:08 AM

http://www.audioheritage.org/vbulletin/attachment.php?attachmentid=52162&stc=1&d=1311354047

Sooty has been giving his usual sniff, sniff paw approval and rates Control 12 SR with vintage plastic 5 paws and one can not go against the word of Sooty the Sooty has spoken. :D

http://www.audioheritage.org/vbulletin/attachment.php?attachmentid=52163&stc=1&d=1311354053

http://www.audioheritage.org/vbulletin/attachment.php?attachmentid=52161&stc=1&d=1311354042

hjames

07-22-2011, 12:23 PM

JBL 4645

07-22-2011, 02:12 PM

The sales brochure is here -
http://www.jblpro.com/pub/obsolete/control_12sr.pdf

But I can't find any tech sheet like the consumer models have ...
'course its a JBL Pro Sound Reinforcement system, not consumer.

But they do look like a nice addition to your speakers!

AH - I DID find the Tech sheet with crossover ... its a PDF
Loaded it to the site - Here you go! 52165
Also here -
http://www.jblproservice.com/pdf/Control%20Series/Control%2012SR.pdf

Okay cheers, Heather sorry about last month thou.:)

The pdf I looked at a few days ago under “JBL Control 12 SR pdf”

I had did have B&W one page broacher that got misplaced somewhere its not in the usual folder!

They are a bit of step up and only liked to have brought them a few years ago, but the cost new I think was around £800.00 for the pair that’s only guess for 1990.

hjames

07-22-2011, 02:23 PM

JBL 4645

07-22-2011, 03:30 PM

How about we start fresh and let the past be the past, okay? :)

Anyway, the Control 12SRs look like speakers with some substance to them ...
imagine they're a pretty good size for your front mains?

Bet you'll have some fun this weekend trying all your favorite bits and learning all their nuances!

Enjoy!

I’m being a virgin with them at the moment that is I’m not going to see what potential they have in small living room not yet. At subtle levels that I mentioned somewhere above in the other post, posts! They are calm on ears my ears yes I can still hear the highs, but unlike the control 5 middle range speaker, it can sound a bit hush or bright. Its been years since I ran them with passive crossovers the active allowed for a less brightness.

The volume level to give you and idea the RA300 that’s running it is set to around 10 o’clock on the level outputs. The gain on DCX2496 is +7.0db on the ABC outputs and on the gain for the 6channel outputs +9.0db.

I know that doesn’t make much sense. The level on the AVR at the moment since it is night is -30db and they still sound clear! Not loud db is about less then 70dbc peak might be 70dbc but its not annoyingly loud.

At -10db on the AVR it sounded or reminded me of being in cinema the sound was nice, uniform. The HF is in looked it up again is 90x40 nice dispersion spread of the sound beaming over the room.

I have another pair on waiting list with feller that I have been in contact with and will see if sent me an update email in jiffy.

His pair are not so beaten in on the grills and look like they had a good ride, before JBL stopped the production run of the Control 5 plus 10 and 12SR.

As for weight I guess that’s mild? The compression driver would have some weight to it I have lifted up a cinema HF horn at cinema volunteers years ago…as they did stage shows and the JBL had to be wheeled in from the back of the theatre and the HF magnate wow if that dropped on foot LOL ouch!

I guess the bass mid has bit of weight maybe a bit less than JBL 2240 as that thing feels like fire extinguisher when lifting it.

The enclosure moulding would be lot less I guess and not bad! I mean the enclosure! JBL have used other products that I have seen in pa stores the JBL “sound power series M” I believe they are moulded cases to withstand the knocks and bumps of touring to gig to gig! They’re a little bit taller and wouldn’t look well suited in baffle wall I guess??

And yes cheers I'll try to relax and enjoy what they have to offer over the weekend.

Ouch my finger! I'm not going to use knife to cut packing open again! its fine I need to let it heel and seeing the Doc on Monday not for the finger but will mention for a look, thou.
:)

JBL 4645

07-22-2011, 06:18 PM

Now for the Rocky horror little picture show! Yes we have all seen this before! :D

They are working but they do need re-cone in fact both do! I don’t have an allen-key that fits can you believe that!

I’ll look around and see if there is any other sets that might have an in-between one that fits between the one that doesn’t and the one that is too small! Or I can file-down one side of key so it can slot in and get the screws undone.

All my keys fit Control 1 and 5 why not the Control 12 SR I guess the Control 10 has the same size fit as the 12 SR.

I guess these are really 20 or more years old! The grills will be easy to get back into shape. It’s the bass-mid that needs new cone or maybe a new improved JBL 12” of today! The HF is okay!

I know you can’t see it it’s a tiny hairline along the edge surround.

Same here only this one doesn’t go around it cuts over and two little dents in the cone. Not surprising after seeing what condition the grills are in.

sine wave 32Hz I can hear a mild rattle like sound on right side one not that it matters I could have used that for left channel. :D

I’m cool about this because its not the end. Its start the beginning of fixing them up by any means how?

I looked around on ebay nothing under “JBL Control 10 or 12 SR recone kit” seems like its going to be difficult to put right!

I have plan B and that’s to use a new 12” JBL and see how that goes? I’ll look around over the weeks and see what might work unless someone knows off the top, where to get re-cone kits for these?

I need to get the drivers and HF out to clean up the smell of 20 years of fags! The smell of cigarettes whew pen and ink! :p

Something is rattling around in the left channel maybe something fell inside though the one of the ports? It would take ages to hold it upside down shaking it around till what ever drops out though one of the ports!

I’m still trying to find a way to getting something to at least fit the allan-key screw slots. I asked Sooty if one of his claws might fit and all I got was a meow. :D

JBL 4645

07-22-2011, 06:20 PM

Looks like someone has had the HF out and misplaced the screw? WTF! Fitted with x head screw! Welcome to ebay sales from hell. :D

I'm not in bad mood I can fix this.

I need to get the drivers and HF out to clean up the smell of 20 years of fags! The smell of cigarettes whew pen and ink! :p

JBL 4645

07-22-2011, 10:55 PM

I have been informed the Allan-Keys might be imperial and its very likely I’ve only got metric size.

Cheers Al!:)

Ebay does set packs metric and imperial so I’ll get a new sets nest month since I have no money! Noooooooo!

I still can’t believe the keys I have only fit the Control 1 and 5 sigh! I’m pretty stuffed for 10 days.:D

Also I have cleaned the fronts and backs of the grills you wouldn’t believe the grim that came off them! The stale cigarette smoke really smells! I need to also vacuum the inside to get the damping material clean and around inside and give it spray with kitchen cleaner until they smell fresh!

Reshaping the grills will take a bit of time. They have bends and buckles that need straightening out. I can only so far get them to fit 95%. I push it in one way and the bottom part bends out I push the bottom in and the top bends out a little.

What gigs have these been too Toilets! Because they smell like one! :D

JBL 4645

07-22-2011, 11:06 PM

I have been looking into one replacement of the whole bass driver! I looked at the old JBL broacher I have and saw JBL 2206 I Google for more information and like what I saw on (key specs)
http://www.jblpro.com/pub/components/2206.pdf

I’m not sure if they would fit they’re 12” but the shape of the mounting side might be different or no different to the ones in the control 12 SR.

ebay has plenty of these going for far prices.

JBL 4645

07-23-2011, 12:01 AM

Lucky the 2418 which is used in the 12 SR is okay. Found a video on replacing blown ones that the chap mentions is in the Eon series.

http://www.youtube.com/watch?v=Tfh-OvJ1o-Q

Edit:My mistake 2416! It’s the print on the pdf its too small I have to enlarge the image and 6 looks like an 8 when too small, still nice video.

I saw some information on speakerplans.com on the JBL 2216

HIGH FREQUENCY SECTION: 2416H-1
Sensitivity’: 109 dB, 1 W @ 1 m
Input Power Rating’: 50 W continuous program
Crossover Frequency: 2.8 kH

So its rated 109db how comes the Control 12 SR is rated at 97db is that the bass driver that’s 97db or the whole damn thing?

JBL 4645

07-23-2011, 01:08 AM

Does anyone know if the JBL 2370A is the same used in Control 12SR it looks the same thou the 2370A has 10 screw fittings and the 12SR only has 6. Is it the same only modified or is it entirely different? I like to know the parts history.

http://www.jblpro.com/pub/components/2370a.pdf

Edit: no worries I just went back and checked pdf for 12SR and it’s a 2372 well close!