Integrated tube amp

Hi all,

Looking for an integrated tube amp for sonus faber cremona M.
Shortlisted the following

Leben CS600
Cary SLI80
Manley Stingray

Leben has the added advantage of a pre-in which provides better integration with HT. Would like to hear your comments on the above amps, and any other integrated tube amp which is good, in particular those with a HT bypass/pre-in for HT integration. Thanks
Octave V70SE or V80. They have a pre out but not a pre in. Both have HT bypass