Pre amp suggestion Ayre or Audio Research

Do you want the features of the Ayre KX 8, like built in DAC and network module?  If not, maybe look for a used KX5 twenty. I have listened to the EX 8 with my speakers and it had the Ayre sound so I assume the KX 8 would as well.  It is the sound I like, detailed, fast and dynamic and a black background. My experience listening to Vandersteen below the Kento is that they are very neutral so the Ayre may be a good fit.  I also think that Ayre preamps work well with Ayre amps.

But if you like the Audio Research sound, the Ayre will not sound like that.

For reference I use the KX 5 twenty with MXR monoblocks and Wilson the Watt Puppy.

KX-R should be on your list IMO… Charlie masterpiece…

Ref5SE 

AR

I currently own a Ayre system, but replaced the K5xeMP Preamp with a ARC Ref6SE Preamp, driving Vandersteen 5A speakers. The difference between the two preamps was impressive.

While I loved the Ayre (clear, clean, neutral and reliable), I now prefer a good tube preamp.  The ARC preamp is more realistic, but costing several times the Ayre preamp, it BETTER sound more realistic.

This is truly a MUST DEMO choice.  Check your connectivity requirements, then contact dealers, friends, clubs, etc.  Take your time, as this equipment should last many years.

Either way, you will have a great sounding, synergistic system.

Good luck.