DAC to preamp technical question

Want to add that using the fixed outs of the M1clic with less sensitive speakers sounds great . King Sound electrostats and Magnepam MMG . Using both speakers the sweet spot for the volume is around 50 out of the 100 on the digital display for the BAT . Can go louder as well without distortion . So in a nutshell is the high sensitivity speakers the cause ? and is there a solution besides using a different pre ? Possibly different amps with the triangles ?

I am a little confused with the determination of the BAT pre having a serious design flaw . Should it's cd input not be able to handle a standard 2 volts ? Or am I misunderstanding what I read here ? if so what would be a good match volt wise ? Also i am using the supplied balance to rca jacks that BAT recommends and claims has no derogatory influence on the sound . I do have three dacs coming later in the week . Two of them have  balanced outs , so I will be giving those a try as well .

Thanks for the responses fellas . A new twist in my journey . I had just purchased the BAT used from a hifi dealer in town last week . I inquired if they knew the tube life on the tubes . They did not know . So yesterday after about an hour of listening the left channel just went dead and gone . No warning signs what so ever .Shut her down , left and came back an hour later and started up again . This time it only took ten minutes for the same thing to happen again . I am assuming the tubes are in need of replacement . Might have some correlation as to why the BAT sounded worse with the higher sensitivity speakers ? Goerge , you really need to get over your obsession with putting down Hypex . LOL

Thanks for the follow up guys . One last question . I plan on picking up the a BAT 60/75 tube amp . It is the companion amp to the vk5i . When that is put in i assume volume control will increase ? From what i have understood it is the more the relationship between bat and hypex that is the issue ?