Thanks sls883 for your suggestions. Linear Tube Audio MicroZOTL 2 preamp was in my list then I noticed it doesn't have balanced XLR outputs. My Dac is fully balanced and hence I was looking for a fully balanced design. I read recently that it is difficult to find truly balanced tube preamps from input to output. I am not sure if single ended system is good enough or not. I know truly balanced system have better noise cancellation. I don't have an electrical or electronics degree hence don't have much knowledge.
Also I have a question if you have compared Coda No8 V1 with Coda S5.5 amp?Based on my listening I am little confused between No8 and S5.5. I heard that Revel loves power due to impedance dip hence not sure which amp suits my setup.

