Selecting Amplifier for Vienna Acoustics Speakers.

Hi friends,
I'm from India and I am in need of the guidance from the experts of this forum. I have a pair of Vienna Acoustics Beethoven Baby Grand Speakers with a Bryston BCD-1. After a long search I have managed to find some Amplifiers. I am expecting support from the experts who are familiar with Vienna Acoustics.
1. Parasound Halo A-21 with EC ECI-4.5
2. Primare Pre3- and A30.2
3. MBL 4006 and 8006B (Got a very nice deal)
I'll be very thankful to you if you help me in this regard.