View Full Version : My JBL sub is dead

Thornton Davis
10-15-2005, 01:34 PM
I have a JBL ARC SUB 8 that I bought new approximately 8 years ago. It's been well taken care of and never abused.

It's connected to my receiver by a standard sub cable to the sub out in the receiver. The receiver its self is only a couple of years old. Its a Panasonic SA-HE100.

Some time ago, the sub started to cut out. When it did it would making a popping sound. This became quite regular.

Unfortunately, now it makes no sound because it doesn't work http://audioheritage.org/vbulletin/images/smilies/frown.gif . I do not believe it's the receiver.

The sub powers up fine. I've checked it over but can't find anything wrong with it.

Any suggestions?

Many thanks in advance.


Ken Pachkowsky
10-15-2005, 01:51 PM
Gently push in (EVENLY) from both sides of the front of the cone. I suspect there will be no movement. If it moves in and out but makes a rubbing sound the results are the same as if it does not move. It's toast and needs a recone. A pop/slapping sound in a cone transducer always makes the blood run cold.

Hope it helps.

Thornton Davis
10-15-2005, 03:43 PM
Thanks for this. As I was checking the speaker, I thought that I would double check my connections.

The connection into the sub was fine, but I noticed that the connection to the receiver looked a bit suspicous. The receiver is in a ackward location and difficult to access the back of. Upon further investigation in fact the connection to the receiver had worked itself out.

I pushed the cable into the sub out RCA port and before I could say "while i'll be a monkey's uncle", it was fixed pumping out lots of solid bass.

Problem solved.



Ken Pachkowsky
10-15-2005, 03:44 PM
Thats good news. I forgot, always check the obvious first!

10-15-2005, 04:29 PM
ARC SUB 8 is a nice little powered sub.

I've got 'em on two TV's here. Just enough.

The smaller PS60, I think it is, is on another one in the office. It's obviously EQ'd, but, "So what?" It ain't home theater, just a little extra pleasure. ;)

They both regularly appear on eBay at VERY resonable prices....