Suggestions for a tube pre and power amp

@moto_man Thanks for your suggestions, I will keep an eye on ARC Ref6 pre. I also heard lot of praises for Allnic pre but as you said a remote is a must for me too. Their top of line preamps are super expensive.

@swaudiofan Not sure that tube amp manufacturers are switching to class D but rather solid state amplifiers in general are moving in this direction.  For me it is the advancement of class D technology; in particular the Purifi modules.  There are also Hypex and GanN modules and possibly others I am unaware of.  They are very efficient with loads of wattage and current; both which I needed for my KEFs compared to the integrated amplifier I had, which was very nice, most recently.

@lals Yes, it is a good balance of the traditional sonic characteristics of tube and solid state giving the best of both. It has good bass dynamics like solid state, an open three-dimensional soundstage, very good low-level detail resolution but yet easy to listen to and that wonderful midrange that tubes provide  

The LTA does not offer balanced outputs, if it did, I would prefer them even with the somewhat low input impedance of the Coda at 10K, would be fine given the LTA is 50 Ohms. 

@swaudiofan I didn’t mean that they are totally shifting to Class D. I think Atmasphere and Rogue audio have some Class D amps. They are very good with SNR ratio and efficiency wise. I haven’t compared Class D to Class A or tube amps but I do hear that some Class D sounds dry and not musical. For me until you do an A to B listening it is difficult to compare.

@agbrace Thank you very much for explaining the sound characteristics of LTA preamp. Will keep an eye on LTA preamps.

You are correct with Coda input impedance of 10K ohms for balanced  will work well with 50ohm impedance of LTA. One reason I avoided LTA in my initial list is lack of balanced connections. I am really not sure is that is a wise decision or not.