BSG Technologies QOL

One owner, great condition. 

Non-smoker "BSG Technologies has developed a method of retrieving
sonic information from audio signals that provides a realistic and complete
rendering of the original acoustic event. . . . Instead of 'adding' a host of
processing techniques intended to create 'effects,' we have simply found a way
to extract information already present in recordings, but otherwise hidden in
conventional reproduction. Our technology enables complete capture,
transmission, and reproduction of such information, including elements that,
until now, have remained hidden and buried in electronics, and unavailable to
the listener. The result is an audio experience with fullness and richness
beyond comparison and one which carries essentially all the dynamic, tonal, and
spatial content of a real sonic event. . . . We call it 'qøl(tm).' "

Great review from the Absolute sound.

https://www.theabsolutesound.com/articles/bsg-technologies-qol-signal-completion-stage-tas-220-1/