This is my little bedside setup.

It consists of a Roku Soundbridge that pulls music from my
media computer and plays them back. It is plugged into an
Entech 203.2 DAC (Digital to Audio converter).

The signal is then run to a Super Sonic T-amp (tripath amplifier) which
then feeds a pair of Realistic HP100 Electrostatic headphones. The headphone
energizer can send the signal to a pair of speakers (Insignias) or send it to
the headphones.