Sub Rumble after turning on

[Nufan]

As I was switching receivers last weekend, I obviously turned off and unplugged my sub. After hooking everything back up to the new receiver (Marantz SR6008) I plugged in a turned on the sub. THe receiver was not on yet....and the sub was rumbling...like random loud undefined bass. The volume only went down when I turned the gain to 0. After about 30 sec-1 min it stopped (much to the delight of my dogs).
Set the gain to 50% and crossover to 120 htz, went through the Audessey set up...all is fine now.

What the heck was that all about? It has happened another time also. I leave it on, not on auto or off because when turned on its goes through this tantrum. Its an older 10" JBL.

Thanks for your input.

-Damon

 

[MakeMineVinyl]

Sounds like a leaky capacitor somewhere in the circuit.

 

[Nufan]

Sounds like a leaky capacitor somewhere in the circuit.

Is that something I can duct tape to stop

 

[Nufan]

Sounds like a leaky capacitor somewhere in the circuit.

Sorry...that mean its toast?

 

[Lone Stranger]

It means you have a severe case of GAS (gear acquisition syndrome.)

 

[MakeMineVinyl]

It means it is going to do exactly what it is doing now, until it fails outright. Nobody can guess when that will be, or what "failure" will look like.

 

[Deleted member 133]

It means it is going to do exactly what it is doing now, until it fails outright. Nobody can guess when that will be, or what "failure" will look like.

Au contraire: anyone can guess when it will be and what it will look like. Example: it will happen in the year 2056 and lead to thermonuclear war. It's a guess. Not a very good one, but a guess nonetheless.

 

[MakeMineVinyl]

Au contraire: anyone can guess when it will be and what it will look like. Example: it will happen in the year 2056 and lead to thermonuclear war. It's a guess. Not a very good one, but a guess nonetheless.

Shouldn't you be minding your Canadian lumber stock investments????

 

[Deleted member 133]

Shouldn't you be minding your Canadian lumber stock investments????

I'm going heavy into milk and energy!

 

[MatthewB]

Mine did that too and all it needed was a new fuse. Not sure if that's your case but mine was a simple 2.00 fix