Mbox 3 problem with preamps

[Tritono9]

Hello, I bought a brand new Mbox 3 (the middle model) and Im experimenting some issues. The main issue that Im having right now is with the gain knob of both preamps. When I turn up the gain knob on both channels there is a point close to the end of the dial that the gain increases drastically without control producing ugly sound, a lot of noise and clipping like a freak. I can evite that if I not turn the gain knob to that point but its difficult to do that because in both gain knobs there are not continuity or subtlety. For example, if I feel that I need more gain because the signal is weak and I turn up the gain knob, the point where the incoming signal is enough and the point that the Mbox goes crazy is very near. If I want to record a low volume sound I cant do it very good because I cant reach the max gain for the preamps without getting an intermitent clipping ugly noise (the read clipping light goes on without stop in that point). Sorry for my english, I hope that you understand what Im saying. Someone has similar problems? Im thinking in return the Mbox right now. Thanks for the help-

[BBass]

What type of microphone are you using dynamic or condenser? If you are using a condenser do you have the phantom power on?

[albee1952]

Originally Posted by BBass

What type of microphone are you using dynamic or condenser? If you are using a condenser do you have the phantom power on?

and do you have the Mic/DI button in the correct position?(I believe that would be NOT lit but try both ways). Any time I find myself cranking the GAIN knob past 2/3rds, I back off and start looking for a problem BTW, more details might help. Is the mic plugged in with a cable that has an XLR connector at both ends?

[Tritono9]

Thanks for your help. I discovered that the clipping was produced due to the abrupt increase in gain in both preamps closer to the end of the gain dial range when Im close to my studio workstation. However, I can understand the clipping but the problem that Im experimenting is that there is an abrupt gain increase when Im in the 2/3 area of the gain dial knob. For example, if I want to record my tube amp at moderate volumes I need to turn the gain knob min at 2/3. When I want to fine tuning the gain setting for the preamp there is a point that I get a very abrupt gain increase that translates in clipping like a crazy. But if I turn down the gain dial knob I cant find the right spot. But if I turn it up I found the abrupt zone again and I get clipping without be able to fine tuning my adjustment. Im trying to be as descriptive as I can in english language: The problem consist in that at a certain point of the dial for the gain in both preamps the gain of the signal increases very, very abrupt without a subtle increase. Its like or I have low gain signal or I have a clipping signal, I cant dial in between because the increase of the gain for the signal is just abrupt at a certain point of the gain dial knob. I think I have read about this problem when I was researching about the Mbox but I thought that it was an isolated problem? english is not my native language so I dont know if Im clear about the problem? there is not a inbetween range for both preamps when you are in the 2/3 area of the gain dial knob, the increase in the gain is abrupt and I think is ridiculous, you cant dial with accuracy.

Someone has this problem too? I need to apply warranty? thanks mates.

[televisionstudio]

did you find a solution ? i got the same problem with the knobs
thanks