Kota:
I almost ordered the ML amp you noted to try room correction, but per the on-sight info I do not own any of the devices required to utilize the "ARC" feature.
I assume that most here do, but all I have is a 4-5 year old iMac and an approx. 9 month old Apple laptop (cost more than the iMac) that has never been used.
No Windows, Smart Phone, iPad et cetera.
Maybe I will purchase one anyway - for future use.
DeKay
DeKay