Thanks for your response, figured out the sub outs. I decided to jump on the Z10e bandwagon by picking up a used unit and wowee what a great product. I was using it with a Stax SR-009 until it developed the dreaded driver imbalance. I was comparing it to my older SRM-007t energizer and there is no contest. I mostly look for great soundstaging and imaging vs a specific tonality and the Z10e just makes the music seem more present. Bass is deep and clean, mids are slightly forward and dead center, the treble is very shimmery and textured listening to Brian Blade on "Trilogy 2". I am planning on picking up another pair of earspeakers, anyone have any insights on recent model pairings (other than Stax). I love the Stax sound but customer support is not so good so thinking of a U.S. model like Audeze CRBN or Dan Clark Corina. Alternately, anyone have reliability updates on the Stax X9000? On another note, tried the speaker outs with my Kef R3 speakers and it sounds awesome with similar soundscape as my headphones and definitely enough volume for my listening room.