I was running my Sierra 2 for a while now from Emotiva mini A-100 and i always liked the sound

Recently i switched it out to Yamaha receiver rx-v675(mainly due to ease of using with a remote) and i have to say the life is sucked out of the audio. Poor dynamics is what i noticed the most.

I wonder how many are running these fine speakers from AVR taps and do not get the best sound possible.

Also if anyone had a chance to try different amps with Sierra 2, did you find any special pairing?