Reconing a Tumult - AVS Forum
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post #1 of 33 Old 09-07-2012, 03:58 AM - Thread Starter
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Speaks for itself. Need to recone due to a punctured cone, very sad accident..
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post #2 of 33 Old 09-07-2012, 09:14 AM
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Awww. frown.gif

How bad is the damage?

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post #3 of 33 Old 09-07-2012, 10:26 AM - Thread Starter
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Pretty hard sneaker kick twice, dont ask hahahahaha. I'm gonna pull it out today or tomorrow and try a little handle fabricating with the hopes of success, but in the event it fails,.......

I know Bosso knows... I should PM him
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post #4 of 33 Old 09-07-2012, 10:36 AM
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Quote:
Originally Posted by kgveteran View Post

Pretty hard sneaker kick twice, dont ask hahahahaha. I'm gonna pull it out today or tomorrow and try a little handle fabricating with the hopes of success, but in the event it fails,.......
I know Bosso knows... I should PM him

Oh man, that really sucks. Hope you didn't kill the kid. tongue.gif

Yeah, I don't know of many old school Adire owners these days. Better hit up Bosso unless you have contact with Kevin Haskins or better yet Dan Wiggins. biggrin.gif

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post #5 of 33 Old 09-07-2012, 10:55 AM
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How big is the hole or rip?

You could try these methods,I doubt they would work for sub drivers though:

http://www.youtube.com/watch?v=hSbTbuZ-55Q

http://www.youtube.com/watch?v=jW7xuJ2gHOY&feature=related

This one might however fix a subwoofer cone:

http://www.youtube.com/watch?v=QjqxJrR7WsE&feature=related

Decent repair adhesives I use are these:
http://www.rmjloudspeakers.com/acatalog/Speaker_repair_parts_and_adhesive.html
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post #6 of 33 Old 09-07-2012, 10:56 AM
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You may want to check with David at fixmyspeaker.com. He has factory coils for the older RE XXX and AA Avalanche drivers and he worked at Destijl so he he is familiar with XBL^2.
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post #7 of 33 Old 09-10-2012, 01:16 PM - Thread Starter
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Sent out an email to fixmyspeaker, do you think he can reuse my VC ?

They said they are very busy, but will return my email soon...... Anyone want to guess on a recone of a 15 like mine ?
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post #8 of 33 Old 09-15-2012, 08:45 PM - Thread Starter
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Where is Fixmyspeaker located ? they agreed to do the repair, i just have to ship it out
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post #9 of 33 Old 09-16-2012, 01:27 PM
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Quote:
Originally Posted by kgveteran View Post

Where is Fixmyspeaker located ? they agreed to do the repair, i just have to ship it out

I could check my old emails and files but I think it's Mississippi. I shipped my two13av.2's there for $60 each way I think. David does great work and can likely reuse your old VC. For the price and quality it's definitely worth the shipping costs.
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post #10 of 33 Old 09-17-2012, 12:20 PM
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Originally Posted by kgveteran View Post

Where is Fixmyspeaker located ? they agreed to do the repair, i just have to ship it out
Sarah, MS. About 30 miles from me. If you need his shipping address, let me know.
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post #11 of 33 Old 09-17-2012, 04:57 PM - Thread Starter
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Thanx guys, i was just curious. I have to build a nice box out of some plywood i have on hand, this driver weighs 60lbs....
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post #12 of 33 Old 09-18-2012, 01:29 PM
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Thanx guys, i was just curious. I have to build a nice box out of some plywood i have on hand, this driver weighs 60lbs....
Why don't you just have him build you a drop-in recone kit. It saves on shipping and it only takes about 30 minutes of work to actually glue it in.
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post #13 of 33 Old 09-18-2012, 05:46 PM - Thread Starter
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I think i will leave it to the pro's....
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post #14 of 33 Old 09-19-2012, 06:55 AM
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It's not difficult. Here's my step by step guide for the sub that is in my wife's car.

http://www.clublexus.com/forums/es350-2007-2012/585746-replacing-non-nav-radio-in-a-2007-a-4.html

That little 12 is regularly pounded with a 1,000w Powerbass amp without any issue.
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post #15 of 33 Old 10-01-2012, 07:04 AM - Thread Starter
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Bought an Oz. of glue, gonna try a $14 repair. The glue and activator should provide an interesting project.....

Do you think glue alone will work or a little cardboard to reinforce.....
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post #16 of 33 Old 10-01-2012, 08:42 AM
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Do you have a picture of the damage? Is it just the cone?
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post #17 of 33 Old 10-02-2012, 04:51 AM - Thread Starter
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Can anyone explain the Activator and CA glue to me. I did a little experimenting, i put some glue on some wood and got a nail, stuck em together and this morning it was hard as a rock.
Is it wise to use this glue where the surround pulled away, or is a more flexible adhesive better. The moving part of the foam surround isnt torn, it just where the surround is glued to the cone......

This stuff stinks odor wise too, better off gluing in the garage when i end up going forward.

My camera sucks!!! So a good set of pics is really needed.....
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post #18 of 33 Old 10-03-2012, 07:01 AM
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post #19 of 33 Old 10-06-2012, 03:59 PM - Thread Starter
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Ok, FrankenTumult should be ready for a test in 48 hours once the glue cures.... Pics i took showed nothing of the repair i did...My camera

It looks great and the CA glue is pretty easy to work with. Really cool is the lack of drip once the activator is sprayed on.

Stupid question, can the glue be used without the activator ?
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post #20 of 33 Old 10-06-2012, 06:21 PM - Thread Starter
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here are a couple pics...

broke...

repaired...
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post #21 of 33 Old 10-06-2012, 10:08 PM
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This+content+made+me+cringe+_901680a296a2943e9778ff0f89038f9d.gif

Awww, man. You had some pretty bad damage to deal with. How's it sound now?

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post #22 of 33 Old 10-07-2012, 04:53 AM - Thread Starter
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Still waiting for the glue to dry, they say 48 hrs to fully setup. I have a feeling a recone is going to be needed due to the extent of the damage....time will tell.....
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post #23 of 33 Old 10-07-2012, 05:04 PM - Thread Starter
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Wow, not a single rattle. Fed it some sine waves up into 100hz to get it vibrating and not a single indication it was damaged.

Holy cow, i fed it some 20hz and man, does this thing have some swing to in. No doubt 3" peak to peak....Note to self ( make sure the back plate vent is clear ;0) )
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post #24 of 33 Old 10-07-2012, 05:16 PM
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Glad to hear your repair worked.

What vintage are your Tumults? I have one from the pre-order and it's pretty much a turd.
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post #25 of 33 Old 10-07-2012, 07:03 PM - Thread Starter
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I have two from the $350.00 preorders, and those two have repaired basket spokes from a bad shipping container, then two slightly newer ones with beveled back plates and different surrounds...so i got four for the price of two...
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post #26 of 33 Old 10-07-2012, 07:23 PM
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Quote:
Originally Posted by kgveteran View Post

I have two from the $350.00 preorders, and those two have repaired basket spokes from a bad shipping container, then two slightly newer ones with beveled back plates and different surrounds...so i got four for the price of two...
Oh. Do you have a thread on them?

I close mic'd my Tumult Free Air and got this: (Click the thumbnail for full size)



It's pretty much an inductance filled disaster. That 30Hz hump and roll off above will dominate any box config the driver is in. Not a very good subwoofer driver. It definitely didn't live up to the hype IMHO.
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post #27 of 33 Old 10-08-2012, 04:00 AM - Thread Starter
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Never did a free air measure. They never showed problems once i loaded them in their 3 cubed cab. I got mine from a guy named Kyle and for the life of me cant remember the name of the site. Was this problem ever discussed anywhere else, i never heard of it. I do remember a VC problem, but since my drivers were pre problem i never payed attention....
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post #28 of 33 Old 10-08-2012, 04:49 AM
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Never did a free air measure. They never showed problems once i loaded them in their 3 cubed cab. I got mine from a guy named Kyle and for the life of me cant remember the name of the site. Was this problem ever discussed anywhere else, i never heard of it. I do remember a VC problem, but since my drivers were pre problem i never payed attention....
Probably Kyle Richardson @ Acoustic Visions. He and his company vanished years ago, around the time Adire folded I think. I never saw any real discussion of the actual performance of the Tumult drivers, but I wasn't watching the various forums that closely over the years with regard to the Tumult. I do remember a few reviews of subs built around the Tumult not delivering the SPL the models predicted. The one Illka measured had a pretty serious inductance hump, but not as low as mine. It was just over 40Hz, mine is at 30Hz.

I built what should have been a monster with the Tumult shortly after the pre-orders shipped. 220L box with 4 Adire PR-15s at their limit of ~1500g. I used it for a while but wasn't impressed with the performance but didn't really have any comparison point of reference for monster subs at the time. It sat in storage for about 7 years and I got my hands back on it last Friday and discovered my memory of it being underwhelming was very much correct. I started a thread about it focusing on how to measure it's response without dragging it out into a field and measuring it ground plane. At this point I guess it's mostly academic since there's nothing I can do about it other than consider it a $384.84 lesson in why you don't pre-order audio related things.
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post #29 of 33 Old 10-08-2012, 08:29 AM - Thread Starter
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Yup, thats it, Kyle Richardson. He would have lost money shipping the broken ones back so i guess they became mine.
I have always used mine in a group of four colocated, and sealed ; so they never put up much of a fuss inregards to program material. With the new BR discs and the over the top bottom end, i'm wondering when they will, as a group give it up ? So far , so good though.
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post #30 of 33 Old 10-08-2012, 11:17 AM
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Quote:
Originally Posted by Stereodude View Post

Probably Kyle Richardson @ Acoustic Visions. He and his company vanished years ago, around the time Adire folded I think. I never saw any real discussion of the actual performance of the Tumult drivers, but I wasn't watching the various forums that closely over the years with regard to the Tumult. I do remember a few reviews of subs built around the Tumult not delivering the SPL the models predicted. The one Illka measured had a pretty serious inductance hump, but not as low as mine. It was just over 40Hz, mine is at 30Hz.
I built what should have been a monster with the Tumult shortly after the pre-orders shipped. 220L box with 4 Adire PR-15s at their limit of ~1500g. I used it for a while but wasn't impressed with the performance but didn't really have any comparison point of reference for monster subs at the time. It sat in storage for about 7 years and I got my hands back on it last Friday and discovered my memory of it being underwhelming was very much correct. I started a thread about it focusing on how to measure it's response without dragging it out into a field and measuring it ground plane. At this point I guess it's mostly academic since there's nothing I can do about it other than consider it a $384.84 lesson in why you don't pre-order audio related things.

The one Ilkka measured was in a 100L box, yours was in free air.

Inductance, inschmuctance. The Tumult was the best sub driver of its day, hands down, and the MKII was flat to >300 Hz, for the inductance-phobes. With 30+ mm of one-way throw it got the job done as well as or better than any of the 100+ drivers I've used.

It rolled off around -8dB from 50-100 Hz, according to Ilkka's and my own measurements. With an 80 Hz 4th order LPF (the standard HT X-over), this was easily managed to a flat response through the crossover. You just have to know what you're doing.

Naked, smoothed and non-smoothed:

tumultsmoothnonsmoothcopy_zps95b346c8.jpg

One of 12 curves, with proper signal shaping:

tumultltcopy_zpsffaba4bc.jpg

4 of them in 2 dual-opposed enclosures with proper signal shaping, signal chain roll off and required power plant yielded 22 liters of displacement, reference level playback, flat to 3 Hz in-room with no compression, inaudibly low THD (<5%) with any disc in existence for $3,000.

You still can't beat that today unless you get in line to wait for the current 18s and 21s and up the box size, finish costs and price of admission.

I personally wish the Tumult MKII was still available. There's nothing available today that bests it... period.
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