Subwoofer Reviews

Analog Sources: Linn Sondek LP12 turntable with Lingo power supply, Linn Ittok tonearm, Spectral moving-coil cartridge; Day-Sequerra Classic FM tuner.
Digital Sources: Krell KRC-28 CD player, Sony SCD-C555ES SACD/CD player, Slim Devices SqueezeBox network music player, Bryston B-100DA D/A converter.
Preamplification: VTL TL-6.5, Krell KCT preamplifiers; Bryston 10B-SUB electronic crossover.
Power Amplifiers: Mark Levinson No.334, Krell FPB-600c, VTL S-400; Bryston 28B-SST monoblocks.
Loudspeakers: Quad ESL-989; Velodyne DD-18, REL Studio III subwoofers.
Cables: Digital: Wireworld Starlight coaxial. Interconnect: Red Rose Silver One, Krell CAST, Mark 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.
Accessories: Torus Power Isolation Unit A024-ACB-A1AB (120V, 20A max, 2400VA, 10 outlet); ATI SLM-100 analog sound-level meter.—Larry Greenhill