Do you hear hiss with the Layla and the Hugo? How about with the Rx and Layla? Just wondering, because the Hugo is a fine source and seemingly decent amp, but it produces very audible hiss for me with both my Angies and UERMs. I liked the Rx MK3-B with full-size headphones, but that amp was very poor with IEMs due to the high gain/high hiss level.
6/3/15 at 9:37am