Thanks for the answer Tyll. Since I donīt have any dedicated AC and considering the fact that itīs very comfortable for the desk arrangement to stack these devices one atop the other ,I think I will do it so.
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...... Phones protect my music from neighbors late at night
Phones: AKG K702, AKG K701, Senn 600, Senn 580, expecting Senn 800 Sources: dCS P8i CD-SACD player and PC (Soundblaster XFi), via Toshlink to MaxDAC Amp(s): HeadRoom Ultra Desktop with MaxDac, Rega Ear, Creek OBH-11