Hello, I'd like to choose between STA-9 and IDA-8. My current DAC is the amazing SMSL M500 MKII, which provides clean, full-bodied, smooth and detailed tone. I could sell it, go for IDA-8 and save some money, but it's not much in a long run and I wonder, how much I'd miss by going for integrated option. I haven't decided on speakers yet, but they will be either B&W 706 S2 or Kef LS50. BW need a lot of warmth and body on midrange, LS50 are so neutral I don't care, I'd be fine with a little warmth. I'm kinda worried about this harmonic-thing interaction between LS50 and STA-9, but I don't quite understand it. If LS50 are perceived as overly energetic on top then warm, smooth amp like STA-9 should balance it? That's how I understand it. If there really is some weird amplification of treble, then I assume it will hurt even more on super bright BW.