What protein skimmer brand is the most quiet sounding ?

[reef93]

I had moded the gate valve already but it is still making lots of noise when the water is splashing back up. My appartment is extremely quiet no matter day or night, I know it is difficult to find a skimmer that is completely quiet. I will try to muffler something as Kien said and let see if it works or not. Anyway, I would like to know if there is any skimmer that is quieter than the ASM, my birthday is coming in November I can ask as a gift