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My JL Audio sub is dead. What exactly happened?

So at my wife's request, I hooked up a Roku to my main system. Roku is a device for internet streaming movies and tv. The connection between the Roku and my preamp, a Meridian G68, was a 12 foot optical cable.

The first night, I hook up the Roku and it works perfectly.

The next night, I move some cables around, then I hook up the Roku again, exactly the same way as the previous evening. I get picture but no sound. Weird. I pondering what I might have done wrong when out of the speakers... POP. POP! POP!!!

Uh oh.

I dive for the amps, switch them off. The POPs stop immediately. But...

Now there's a TERRIFYING HIGH PITCHED PULSATING NOISE coming from somewhere in the room. I finally realize it's coming from the sub, a JL Audio Fathom 113. I dart across the room, switch it off.

I stand frozen, savoring the final moments of the fantasy that maybe things aren't that bad.

Here are some questions in no particular order...

1. I suspect the amp in the sub is fried. Does that sound right?

2. Where did those POPs come from? Could a damaged optical cable do it? Or maybe the optical cable wasn't fully seated?

3. Do I really have to ship this 150 pound sub to Florida? Or do you think there's any chance of finding someone local to fix it? (I'm in L.A.) The sub is out of warranty, btw.

4. I tried to take the panel off the rear of the amp (I know, lethal voltages inside) with the thought that maybe I would just bring the amp portion of the sub to someone local to fix. I removed about 12 screws from the rear panel and still it doesn't budge. Why can't I open this thing?

If you have any suggestions, I'm all ears. If not, thanks for reading.

Bryon

P.S. The rest of the system appears to be fine.
bryoncunningham
btw22
80 posts
 
Polar993,

My f112 exhibited the same issues as yours. Bad caps and power supply, from what I’ve read from multiple forums.

A box from JL audio will cost you $82+shipping. According to them, you must use their supplied box for shipping the sub back. For $300 plus one-way shipping cost, your f113 will be upgraded to most current version of the f113v1.

I sent mine in for repair 2/20 and it’s finally due to come back later this week. Turnaround time was suppose to be 3 weeks but as peter_s noted, they were waiting for parts to come in. Mine also supposedly needed a new woofer so that took an extra 10 days.

TBH, I’m still a little miffed about the whole situation. I previously had my f112 serviced Dec 2012 and 5 yrs later it goes back again. I’ve also come across some saying that bad quality parts were used previously, though I’m not sure how accurate this is. My sub was never pushed close to its limit and now the new warranty is just for one year.

Good luck...

gammaman
11 posts
 
I haven't sent mine in for the second time yet. Once I get it fixed, I will leave the power completely off at the surge protector so the unit won't be in standby mode when not in use, since both times it blew it did so while in standby. Not sure if this will help, but seems worth a try.
polar993
6 posts
 
I have been in contact with JL and they have been very helpful. They explained their repair program, where for $300 plus shipping costs, they will repair any damaged parts of my sub and bring it up to current specs. It’s a great program!  

My biggest and only issue is....I DON’T HAVE A BOX FOR MY F113!!!!  I stupidly threw it away thinking I would no longer need it!  JL doesn’t have any F113 boxes to sell me. They are on backorder from China with no ETA. I have reached out numerous local dealers to see if they have any boxes, but I have had no luck!

By any chance would any of you kind folks on this forum be willing to let me “borrow” your F113 box so I can use it to ship my sub to JL for repair?  If you are in NY, CT or NJ I will come and pick up the box from you. If you aren’t local, I will pay to have the empty box shipped to me and I will ship it back to you once I get the sub back from JL. 

Anyone willing to do do me a HUGE favor?

Please?....Pretty please???

-Tom 
917-887-8255

polar993
6 posts
 
Anyone out there with an F113 that would be willing to let me borrow your box so I can get my beloved sub fixed?
statman's avatar
statman
285 posts
 
Polar993,

If they are on "backorder" how is the company shipping out any new product? The problem with your request of "borrowing" another owners box doesn't guarantee what shape it will return in. Are you paying for that box to be returned to the original owner? You receive the "box", then you ship it to Florida, and then it returns to you. You then will have to ship it back to the original owner? Who pays if the box is damaged? Do you understand my point? Unfortunately I think you may have to wait it out until the replacement boxes arrive. It took me one time to learn to always save my original boxes. Be persistent with them maybe they'll send you one. 
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