Need help. Filter, duct, cooltube, fan, silencer set up in grow tent?

[Casa]

I have a 1.2 x 1.2 x 2m grow tent.
6" inline fan
Carbon filter
Cooltube with 600w hps
6" ducting
Silencer
Which order is going to be the best or most efficient way to set this up?
I was thinking something like this:-
Filter--->---cooltube--->---inline fan--->--- silencer???
Thanks all for any help. Much appreciated.

 

[JJ Bones]

For the most silence

Filter > fan > silencer

However you can do it the way you described as well.

 

[Casa]

For the most silence

Filter > fan > silencer

However you can do it the way you described as well.

Sound is def an issue. Where does the cooltube fit in to you're design?

 

[JJ Bones]

After the silencer

Silencer > Duct > Light

Another good option is insulated ducting.