Thread: Hello for the first time
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  # 6  
Old 06-07-14, 22:09
spyke007 spyke007 is offline
Junior XT-Moto
 
Join Date: Jul 2014
Location: poole
Posts: 19
spyke007 is on a distinguished road
could someone explain two things please?
1-what is closed and open loop
2-what are the stage 1 stage 2 and stage 3 filters composed of