Ebs Gorm Et210 Problem Of Function

[menelaosthebass]

I hope you can help me out GUYS i am so frustrated!!!

I bought a brand new EBS GORM ET210 4 months ago!
I play on it with a Fender Stu hamm bass of 1991!

When i play sometimes the volume of the amp dramatically decreases and sometimes it goes to mute!!!! without any obvious reason when i turn off the amp and wait for 30minutes i turn on again and the amp plays fine!!!

The agent in greece replaced my amp with another brand new....for some months i didnt have any problem and now....this exactly the same behaviours appears again!!!

I checked the below!

1.i always play with low gain (2-3) and raise the volume as much as needed!
2.i check the cable
3.i check the bass and clean it and changed some potentiometer

I cannot think anything else!!!

Do you have any idea?? When i play at home in low voice i dont have any problem!!! When i change to another room we have for rehearsing and play louder...i get this behaviour!!!!

I would appreciate so much if someone could help me out!!!!

IS IT CURRENCY?? OR OVERHEATING??

Thanks a lot!!!