preamp


I am looking to seek some guidance from  'experienced gurus' in this forum. I presently have a Tube mono blocks 'Auris Forte 150' it's from Serbia by Auris Audio paired with Tube( hybrid) preamp unicorn pre by unison research and speakers are Focal sopra N3. Sonically not fully satisfied. I am sure by replacing the preamp with a appropriate one I will achieve the 'highs ' and 'mids'.I want to replace the preamp and torn between 
- Mcintosh C2600
- Audio research LS28
- VTL 5.5 iii.
I even came across  chinese brand Cayin M11LS  tube preamp. In the used market I looked at the McIntosh C1100 for about 60% of the retail. Bit over my budget.
All theses are in the same price range $7500 USD.  I have never paid a full retail price on any of my equipment. Probably  Mac I could get the best discount . I am not able to try any on these at home with my system. Even if I listen to these preamps they are set up with differently  at the stores. 
Appreciate  fellow members  thoughts.
vishu

Showing 2 responses by tomic601

some other excellent preamps to add to your list IMO

Backert
Aesthetix
BAT
Atmasphere
what dont you like about your system ??????

would tend not to focus on discount but support from dealer and factory and system synergy...my own personal preference on that list is the VTL but mostly because I like what Luke Manley is doing with the company and how hard he works to support owners....obviously the other brands are long running and fantastic...and yes I own both ARC and Mac gear 

enjoy the search and the music...