Subwoofer Reviews

Analog source: Linn Sondek-Lingo turntable, Linn Ittok tonearm, Spectral moving-coil cartridge.
Digital sources: Krell KRC-28 CD player, Sony SCD-C555ES multichannel SACD/CD player.
FM tuners: Day-Sequerra Classic, McIntosh MR-78, Sony ST-5000.
Preamplification: Mark Levinson ML-7 preamplifier with L3A moving-coil phono cards, Duntech MX-10 head amplifier, Margulis phono section, Krell KCT preamplifier.
Power amplifiers: Mark Levinson ML-2 monoblocks and No.334, Krell FPB 600c.
Loudspeakers: Quad ESL-989, Bohlender-Graebener Radia 520i ribbon towers; Velodyne DD-18, REL Studio III subwoofers.
Cables: Interconnect: Red Rose Silver One, Krell CAST, Levinson Silver single-ended, Bryston balanced. Speaker: Mark Levinson HFC 10, Pure Silver Cable (PSC) R50 biwire double ribbon, Ultralink Excelsior 6N OFHC, Coincident Speaker Technology CST 1.
Accessory: RadioShack 33-2050 analog sound-level meter.—Larry Greenhill