amp help pioneer gm8704 vs us acoustics barbara ann

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Jimg

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trying to narrow down between these 2 amps

Looking to run either a pioneer 8704 class D   100wX4 

or a us acoustics Barbara ann  class A/B      100w/x4

first initial thought

amp 1 run  one set of components focal iss 130 full active on channels 1,2,3,4

amp 2    channels 1,2 on a separate set of components focal iss165       then use channels 3,4 bridged to a set of 8inch subs I have  they are 350w max power 

comparing the amps

1  barbara ann has a little better numbers on S/N ratio and THD % 

2  pioneer is a lot smaller in size  ,  I will have limited space with out getting crazy on an amp rack in the trunk,,   size wise I can run 2 pioneer 8704 amps   and a pioneer 9701 in about the same space as I can run the two of the us acoustics Barbara ann

3 Cost difference a little more for the us acoustics,   but I don't mind paying the difference if it is worth it , better sound and probable better build

4 pioneer being class d will have lower amp requirement on the car,  I really do not want to change out the factory alternator fi if don't have to.

what would you go with?

 
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I see in your equipment list you are using the gm series 

have you noticed any amp turn on pop or hiss issues,     

have you been satisfied with the sound you get with them

 
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