Amp for Vandersteen 2ci


Hi all, I am planning on upgrading my amp for my Vandersteen 2ci. I am looking for an amp with a little more power and with a budget at 2k. I currently have the B&K ST2140 amp with a Rotel RC-970BX preamp which I went to RC-995 preamp with balanced output. Their are a few amp I was thinking in no particular order:

Classe CA-200

Threshold Audio S-300

Parasound Halo A21

Krell KAV 250a

Any recommendations would be greatly appreciated.

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@soix Maybe true that the balanced output my not be fully balanced. In fact, looking at the service manual, the output is pretty much an  bi FET op amp. Maybe the intention was for the purpose of of noise rejection on long runs than provide a sonic difference. On the contrary, the RC-995 using the RCA preouts did made a huge sonic difference which the Vandersteen reviled the difference between the two preamps.  

Does the Parasound 21+ an improvement from the 21? I am trying to get as much info before I decide.