pre amps with HT bypass

I need to use the system as a dual system. Two channel and HT, so as I rebuild it I want to go to pre amp with bypass. I notice a couple have this feature. Can folks help me make up a list. The speakers I am using are maggies 1.6.

I am going to also purchase a power amp as everyone is saying that the NAD 975 at 140 watts is not doing it. I am thinking a Bel Canto 1000/500 or Wyred for sound, perhaps Nuforce

Any help will be welcome.