Earthworks Sigma 6.2 loudspeaker System
Analog source: Linn Sondek LP12/Cirkus/Trampolin/Lingo/Ekos/Arkiv LP player on a Sound Organisation table.
Digital sources: Mark Levinson No.31.5 CD transport; Mark Levinson No.30.6 D/A processor; dCS 972 upsampler; Ayre CX-7 CD player; Technics DVD-A10 DVD-Audio player; Musical Fidelity Nu-Vista 3D CD player and Musical Fidelity Tri-Vista SACD player.
Preamplification: Linn Linto phono preamp, Mark Levinson No.380S line preamp, Z-Systems rdp-1 digital control center (updated to handle 96kHz sources).
Power amplifiers: Mark Levinson No.33H and Lamm M2.1 monoblocks.
Cables: Datalinks: Kimber Illuminations Orchid AES/EBU, AudioQuest SVD-4 S/PDIF. Interconnect: Madrigal CZ Gel-1 and Ayre (balanced), DiMarzio (unbalanced). Speaker: Synergistic Research Designer's Reference2. AC: Synergistic Research Designer's Reference2, PS Audio Lab Cable.
Accessories: PS Audio Power Plant 300 at 90Hz (preamps and CD players only), Audio Power Industries 116 Mk.II and PE-1 AC line conditioners (not power amps), ASC Tube Traps, RPG Abffusors. AC power comes from two dedicated 20A circuits, each just 6' from the breaker box. A No.33H or Lamm M2.1 was plugged into each.—John Atkinson