I went all noctua, installed all fans with anti vibtation pads and mounts. Still not as silent as I expected, any advices? Further description in comments : r/Noctua
Make Your PC Ultra Quiet With Noctua Fans | RelaxedTech
The Best 120mm Case Fan Shootout: Arctic vs. be quiet!, BlackNoise, Noctua, Scythe & SilverStone - YouTube
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Noctua NF-A4x10 PWM 40mm x 10mm Ultra Quiet Silent Fan 3-Pin Premium Cooling Fan for CR-10 S4/CR-10 S/CR-10/CR-10 S5/CR-10 mini 3D Printer - Walmart.com