Thanks BrnCow, yeah i do need to invest in a decent fan speed controller your right.. My current centrifugal has a 2 speed setting with speed 1 @ 420m3 and speed 2 is 800m3. Even on speed one double muffled you can still hear it with ease, fml. And thats with room sealed up too mind you, that noise travels through walls so hard im doubting whether you can ever eliminate thre noise unless your fans are turned waaaaay down at which point you'd have to start watching you dont lose negative pressure >> leads to smell leaks etc..
In saying that Id be interested for sure to see how a controller goes for me, not just for extraction but intake fans also
Have a great day
Darth
In saying that Id be interested for sure to see how a controller goes for me, not just for extraction but intake fans also
Have a great day
Darth