GaN Amp & Speaker Popping Sound At Power On


Forum Members,

I just got a GaN400 amp and when it is powered on, the speakers make a popping noise that is about the magnitude of the music at the Peachtree startup setting (volume of 3 out of a possibility of 8).  It does this whether I use the 12 volt trigger from the PreDAC or manually power on the amp on by pushing the power on button.  There is no way to start the amp with zero volume.   

I am using speaker wire with bare ends that are tightly attached to the speaker and amp connectors - verified this.  The popping noise is much louder than with the Nova500 that I am in the process of trading in for these new units.

I have observed that the popping tends to be louder with a longer gap between turning off and turning on (similar to the music volume at startup) vs turning off and on with a few second delay (sometimes quite a bit less loud than the music volume at startup).

Is this induced speaker popping noise a concern for long-term speaker damage with many on/off cycles?  

Those of you with this amp or other GaN amps, do you experience a similar popping sound out of your speakers at powerup?  Peachtree technical support stated that this was a characteristic of GaN technology.

Note, other than powerup, this amp is dead silent as far as noise induced artifacts, including when powering it off.

Appreciate your thoughts.  (Note that I am querying both Peachtree and my speaker manufacturer about this, but would like to hear back from you all.)
michiganbuckeye
My GaN400 also makes the pop, not very loud.

My nova300 and my amp500 did not pop when I turned them on. I use the same preDAC with the GaN400.
I also called Peachtree and they told me the noise was normal.
Will the noise happens on the amps that get modded, I wonder.
Always power your pre amp first then the amp and other equipment, reverse when turning off equipment.
Yes, in Pro Audio, you do turn on/off equipment in a specific order to avoid pop noise.  However, this particular GaN400 makes pop noise with only the power cord and speaker cables connected to it and nothing else.
My LSA Voyager GaN 350 pops when turning on.  Not when turning off.  I leave it on, but noticed popping when turning off to replace IC’s, clean wires, or swap cords.  
I reported this to LSA.  They are looking into it, but as long as it causes no damage to anything and isn’t indicative of an eventual failure in the product, I’ll let it go.  I wouldn’t like it if I turned the amp on each time I used my system, however.