Also it seems I’ve narrowed down my external amp choices to either the AIYIMA A07 or the\nNiles SI-275. There are many used Niles available for about $100. I did order the AIYIMA from Amazon knowing I can return it. Curious what some of you would choose between these 2 options for powering my rear surrounds\n\nThe AIYIMA is a Stereo Amp and will handle both rear channels. No need for 2 of them. Based only on the review, the Niles looks better to me, but the buying used factor makes it a wash.\n\nI'm really interested in your thoughts once you hook up and play with the AIYIMA. So post back here with some photos.