I currently own D90 and Monolith 887 which are connected using short XLR cables. The problem is that in high gain mode 887 has distortion / clipping going on whereas if I connect both devices using RCA cables then there is no clipping / distortion. My guess is that it is due to higher voltage supplied to 887 in XLR mode and it is not designed to sustain that voltage (4v in XLR and 2v in RCA), I am not sure though. Can anyone please confirm this? I can work around this problem by using either RCA cable or by using D90 in preamp mode and lower the volume a bit on D90. Both are not ideal solution as in both cases I am loosing headroom in terms of loudness / volume. The volume is important to me as I am using Hifiman Susvara which requires high gain on 887 to reach good level of listening.