glitch sound from amp at low volume only

[TAREKFOUAD1]

Hi guys

My stuff is:

source DVD LG ps3
amp vincent SP-993 200 x2 @8hom 60w class A
400w @4hom

preamp marantz 8500 7.1

speakers paradigm studio 60 v 4

power conditioner panamax 5300

room size 12 x 15 feet

My problem is only at low volume: I hear a glitch or distorted sound.
I sent the device to the service center and they told me that they have to change the relays in left & right channels. Unfortunatly I received the amp but the problem was not solved

I called the service center again and they told me that I may have a missmatch with my preamp.

Although I checked all connections, the same problem still exists.

Then I moved the amp to one of my friends home and the same problem exists.
So whats wrong with my amp? I need your opinion...

thx for your help

 

[ParadigmDawg]

Not ignoring you, I just have no idea what it is.

 

[TAREKFOUAD1]

Thx Greg for your post. I know no ignoring in this forum

 

[mtrycrafts]

...My problem is only at low volume: I hear a glitch or distorted sound.
...

Can you expand on the glitch? How does in display the distortion? With everything? All the time?
Do others hear these problems on their own?

 

[sparky77]

At how low of a volume does this actually happen? Is the volume so low that you have to be right by the speaker to hear anything, or just loud enough to hear from the listening position? And, does the amplifier have a gain control, and where do you have it set at, the the gain level have any effect on the distortion you hear?