Jinhan, welcome and thanks for posting the results. Although I occasionally scan AVS, my view is that much of the posting that I've read has been uninformed in content and/or distasteful in presentation, so I'm glad to be spared the burden. One point; do I understand that the 5dB boost in one EP500 was inserted by Craig as a little test for the listeners rather than some specific technical reason or a previous controversy on AVS?

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Enjoy the music, not the equipment.