Is it normal for the AMP1 fan to make a very loud operating noise?
We get lots of feedback from AMP1 users who are surprised that the AMP1's fan is running permanently. In fact, the fan starts running as soon as the amp is turned on. In normal operation, however, it runs very quietly and can hardly be heard. Only when the temperatures in the amp rise does the fan switch to a higher level of operation, which means it also gets louder. As soon as the amp has cooled down enough, the fan switches back to normal operation.
The AMP1 Mercury Edition has a production batch in which the fan runs permanently at a level that is actually too high. This doesn't harm the device in any way, but the fan is clearly audible.
This can be changed by modifying the fan control (and is a process we at BluGuitar are experienced in carrying out). If the fan in your AMP1 is very loud, you can contact us here, stating the serial number of your AMP1 Mercury Edition. We will then check whether and under what conditions the modification of the fan control for your device is possible.