I have a couple of questions on our back-up deck, how does the headphone/ line out plug work? Am I going through a headphone amplifier or is it just a line out without the added distortion of a separate amp. but having output gain control? Also is there a way to control both levels simultaineously while recording (without jogging back and forth between left and right with buttons)? Also how do the specs. compare with the DR100mk 3? Thats our main stealth deck, a little larger in size but an easier deck to use. Thanks for help in advance. Bob