I do not know how long you have had your VA-BCG speakers but I feel I can give my opinion. I had the speakers on trial for three weeks and had the same amplification and analogue/digital equipment.
I played our usual multi genre music and, frankly, I had a headache not long into each listening session. My experience was that I lost the bass unless the volume was up, the mid range was like a sonic laser to the ears and the tweeter, reasonable whether driven low or high.
The midrange has to be at the worst roll off-on between bass and tweeter. It is at a very complex musical area and as such s
seems to over compensate by boring sound into your brain.
I changed to Focal Sonos Olympica 3 speakers and these speakers were like a gentle massage.
I do not think an amp change will solve the headaches. Best luck.