Got an E 6. New. To use as a headphone amp while connected to my TV configuration: TV is LG  37LH30, and has no headphone out jack but has a digital optical audio out connection which is now connected to a Sewell DAC converter (to analog), and the output from there goes to the E 6 amp, and...

Own a LG 37LH30 TV with an optical digital audio (Toslink) output.  No headphone jack.   I own a pair of decent Bose in ear headphones, and other headphones.   May purchase Sennheiser RS120 or other wireless phones also.   Considering purchasing for my setup:     Fiio E 6 or E7 (I...