• FEATURES
  • THOR: A D'APPOLITO TRANSMISSION LINE (8)
    Experience the advantages of transmission-line loudspeakers with this professional design featuring state-of-the art drivers.
  • LISTENING CRITIQUE (14)
    Find out how this TL speaker stacks up, with all its impressive credentials.
  • THE ALL-FET LINE AMP (28)
    Here's a study in amp circuits - and the latest line amp effort - from a noted European designer.
  • A PRACTICAL CIRCLOTRON YOU CAN BUILD (34)
    Discover how this interesting circuit works, and use it to build your own amp unit.
  • THE INFINITE BOX: CONSTRUCTING A SUBWOOFER, PART 2 (42)
    The moment of truth arrives, as the performance of this infinite box design is measured and tested.
  • A SENSIBLE McINTOSH 225 REFURBISH (52)
    Follow this author's step-by-step method to give new life to this classic amp.
  • MOVING-COIL PHONO CARTRIDGE TRANSFORMERS (58)
    Vinyl fans will appreciate discovering how to make their own step-up transformars for their audio systems.
  • REVIEWS
  • GW LABS DSP (63)
    Our regular aX reviewer puts this digital signal processor through its paces (63)
  • DEPARTMENTS
  • SPECIAL (2)
    "What One Wants" - An Appreciation of Henry Kloss.
    A former co-worker pays tribute to one of the pioneers in the audio/video industry.
  • XPRESS MAIL (66)
    Readers speak out.
  • IN EVERY ISSUE
  • CLASSIFIELDS (70)
    Audio-related items for sale or wanted.
  • AD INDEX (70)
  • YARD SALE (71)
    Free classifields for subscribers.
  • WEBSITE RESOURCES (71)
    Find your favorite advertisers on-line.