Octo Lnb is the signal losing,on all of eachoutput the same?

Turok

Hello!
yesterday i bout a octo lnb from inverto with 8 lnb outputs,and build in multiswtich!
the dealer told me,that there is a signal losing on a octo lnb,but i currencly still dont know how much it will realy be?
is there a big diffrence in the brand and quality?
the price range beginn from 35 € to 60€ for this lnb!
on cheap quad lnbs,when you watch a strong satellite like astra you see no diffrence in signal ,but on weak signal,you see on some lnbs that the signal level goes back,on the other input,when the 2.person,watching at the same time,when the signal is weak,then picture go away,normaly this should not be,but cheap mass components,inside the lnbs makes this "posible",octo lnbs i dont tested yet,because of the reason i read not much about on the net,i want to start this topic,to find out more,to find out the quality difrence,what happen on the signal when 8 people watch it same time,is then the signal always lower and lower!
c120 octo lnbs,i never see,would be nice for the gregory to test,but the dont offer this standart!

thanks for your input!
smart also offers octo lnbs,but i bought the inverto!