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Post subject: Super Sonic Combo 212
Posted: Thu Aug 07, 2014 12:22 pm
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Hi!

I got a new Super Sonic from store thats sounds fantastic. But I have a problem.
When a play it with the guitar straight in to the input it work fine.

But when I use 4 Cable Method using the fx-loop it geting worse.
After I´ve played for 5minutes the Automatic Bias indicators all turn red and the amp get quite.

Anyone who knows whats wrong?


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Post subject: Re: Super Sonic Combo 212
Posted: Fri Aug 08, 2014 2:19 am
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Ogizz wrote:

But when I use 4 Cable Method using the fx-loop it geting worse.



What is that ? Never heard about that . Any link ?

Look you send to much signal on power amp.


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Post subject: Re: Super Sonic Combo 212
Posted: Fri Aug 08, 2014 3:47 am
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Quote:
What is that ? Never heard about that . Any link ?


http://www.rjmmusic.com/wp/2011/06/07/the-4-cable-method-and-its-potential-ground-loop-problem/

Thank you for fast answer!

Signal level indicate "0" on my multi-fx and I´ve the return-knob on the Super Sonic all down. Shouldn't be to much signal?!


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Post subject: Re: Super Sonic Combo 212
Posted: Fri Aug 08, 2014 3:55 am
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Are you using the ground-lifted patch cables as recommended by the author?

Arjay

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"Here's why reliability is job one: A great sounding amp that breaks down goes from being a favorite piece of gear to a useless piece of crap in less time than it takes to read this sentence." -- BRUCE ZINKY


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Post subject: Re: Super Sonic Combo 212
Posted: Fri Aug 08, 2014 5:04 am
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Retroverbial wrote:
Are you using the ground-lifted patch cables as recommended by the author?


No I haven´t got that ground loop problem his talking about.
Everything sound nice until it gets silent.


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Post subject: Re: Super Sonic Combo 212
Posted: Fri Aug 08, 2014 5:08 am
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Ground lift ...It is only for a ground problem ,,,hum .

Or I'm wrong ?


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Post subject: Re: Super Sonic Combo 212
Posted: Sun Aug 10, 2014 11:05 am
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stratele52 wrote:
Ground lift ...It is only for a ground problem ,,,hum .

Or I'm wrong ?


What do you mean?


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Post subject: Re: Super Sonic Combo 212
Posted: Sun Aug 10, 2014 1:18 pm
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Too many gear working with wall outlet grounded power and patch together could send some hum to your amp . You may need to disconnect ( lift ) one or some ground .

This is a ground loop ;

Google ; http://www.soundonsound.com/sos/1994_ar ... loops.html

I did not read it , look to talk about what I mean :)


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Post subject: Re: Super Sonic Combo 212
Posted: Wed Aug 13, 2014 2:12 pm
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I know what a ground loop is.

The thing is that I don't have any problem with hum and ground loops.

My problem is that the automatic bias turn off my tubes.

Maybe I overload the power amp?


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Post subject: Re: Super Sonic Combo 212
Posted: Wed Aug 13, 2014 3:16 pm
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Ogizz wrote:


The thing is that I don't have any problem with hum and ground loops.

?


That is what I 'm thinking few day ago when aswering to Retroverbial

Yes you overload the amp


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Post subject: Re: Super Sonic Combo 212
Posted: Thu Aug 14, 2014 4:57 am
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Haha!!

Good communication here!

Thanks anyway!


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