A rarely seen set of Ron Sutherland's ultimate reference line blocks. 3 chassis preamplifier. Ultimate in separation and quiet. Stereophile reviewer Brian Damkroger has had a set in his reference system for some time.
Description by Absolute Sound: "The Line Blocks ($15,000) linestage adds a third chassis just for the control electronics: input selection, volume control, and the display—which gets a bit of retro chic in the form of a pair of 1950s-style Nixie tubes whose elements display numbers depending on which elements (within the tubes) get voltage fed to them. The two other Line Blocks' chassis have all the input and output connections, and are where the signals are actually buffered and amplified, thereby keeping the control electronics well away from the audio signals."