Subwoofer Reviews

Analog sources: Lyra Parnassus D.C.t and Koetsu Urushi phono cartridges, VPI TNT Mk.IV turntable, Graham 2.0 tonearm; Simon Yorke Series 7 turntable/arm, Immedia RPM arm.
CD players: Bow Technologies ZZ-Eight and Naim CDX CD players.
Preamplification: Ayre K-3, Jadis JP 80 Mk.2, Stax SRM-T1W passive line section.
Power amplifiers: VTL MB-450 and Conrad-Johnson Premier Twelve tube monoblocks.
Loudspeakers: Sonus Faber Concerto Grand Piano, NHT Super One, Audio Physic Virgo.
Cables: Yamamura Millennium 6000, Cardas Golden Cross, and Electra-Glide interconnects; Yamamura speaker cables; Yamamura Quantum and Electra-Glide AC cords.
Accessories: Sounds of Silence Vibraplane active isolation stand, Zoethecus equipment stand, Yamamura Millennium Bearing stands, A.R.T. Q dampers, D.J. Kasser Black Diamond Racing cones, Harmonix tuning feet, Walker Valid Points, Symposium Acoustics and Bright Star isolation bases, ASC Tube Traps, Shakti Stones.—Michael Fremer