Why do my ears ring with my new amplifier?



I just changed integrated amplifiers on January 2, 2015. I went from an Audio Research DSi200 to a Simaudio 600i. I'm running a Lumin A1 Network Streamer and Dynaudio C1 speakers. Those haven't changed. I'm also in the same 10' x 12' room.

My setup sounds great when I'm outside of my room. When I walk in and sit down, my ears start ringing.

I don't think that the high frequencies are the problem. Is this too much bass energy in the room, too much sound pressure, or what do you think?

Does anyone have a suggestion on what's needed to correct this problem?

Thanks,
Chuck
illuminator
I've face this problem a few times, I think because of listening too loud, some amp is too detailed and transparent ,there are too much detail in the front row , you have to turn up the volume to try to hear the dept in the back row and also to distinguish the singer. The bass energy surge when volume is up , I've to see doctor twice, I think this amp doesn't suit you, you dial up the volume because you donot find it involving , just my thought.
The flatter the frequency response, the less fatiguing the amp will be. It's just that simple. Whatever other attributes/detriments it has will be irrelevant. Just because you spent huge money on somebody's 'recipe' doesn't necessarily make it soa. It's been flavor of the month as far as amps go. The best ones are both unremarkable and spectacular at the same time. If you can't say that about yours, then I'd be curious of the shape of it's response on a foot long tape. The best is also the amp you can crank to levels that surprise your ability to tolerate. The others you have to be 'careful' with.
"02-06-15: Csontos
The flatter the frequency response, the less fatiguing the amp will be. It's just that simple. Whatever other attributes/detriments it has will be irrelevant."

How could you come up with something like that. The fact that a piece of audio equipment will be less fatiguing to listen to just because it has a flat response, doesn't even make sense. And before you come back and start arguing with me, can you back that statement up with something real?