Are you on the road to Audio Hell? by Leonard Norwitz

Electronics
• Tubes Versus Transistors:  Is There An Audible Difference? by Russell O. Hamm, Journal of The Audio Engineering Society, presented September 14, 1972, at the 43rd Convention of the AES, New York
• Amplifier Damping Factor and Its Effects on Loudspeaker Operation by D.J. Tomcik, former Chief Electronics Engineer, Electro-Voice, Inc.
• Output Impedance and Amplifier-Speaker Matching by Al Sekela
• Other various articles from the Atma-Sphere Owners' Group website
• Radio Shack SPL Meter (33-2050) Modifications

Digital 
• A Proposal for the High-Quality Audio Application of High-Density CD Carriers by Bob Stuart of Meridian  Acrobat (PDF) format
• Bitstream versus PCM debate for high-density compact disc by Prof. Malcolm Hawksford of Univ. of Essex, England
• DVD: Application of Hierarchically Encoded Surround Sound - including Ambisonics by Stuart, Hawksford, et al. (Acrobat format)
• DVD: Pre-emphasis for use at 96 kHz or 88.2 kHz by Bob Stuart (Acrobat format)
• High-Quality Audio Application of DVD by Bob Stuart (Acrobat format)
• Lecture materials from presentation to Japan Audio Society in June 1998 by Bob Stuart (three articles in Acrobat format)

Analogue 
• A Beginner's Guide to Cartridge Setup by Andrew Chasin
• Analogue Addicts Linn LP12 FAQ everything you could want to know
• A review of the Hi-Fi News & Record Review test record  Might prove useful for those who want to learn more about it, and for those owners who find the notes on the sleeve a bit enigmatic.
• Azimuth and VTA: So Very Important! by Galen Carol Audio
• Phono Cartridge Alignment Protractor by Steven Rochlin of Enjoy the Music
• Setting Up Your FIRST Cartridge... by Thorsten Loesch
• Turntable System Setup by Laura Dearborn
• Tweaking your Record-Player by J. Gordon Holt
• Understanding the Issues behind Cartridge Alignment by Gary Markowitz. Covers overhang, zenith, etc.
• VTA Once and for All! by Jon Risch. Proposes an interesting method for setting arm height. Be sure to get the correction in the P.S.

Loudspeakers 
• The Electrostatic Loudspeaker Circuit commercial and DIY electrostatic loudspeakers (ESLs).  Lots of links and info!
• Linkwitz Lab Siegfried Linkwitz's own site, with information on loudspeakers, crossovers, sound reproduction, room acoustics, etc.
• Transmission Line Speakers collection of transmission line speaker information and projects

Miscellaneous
• There's life above 20 kilohertz!  A survey of musical instrument spectra to 102.4 kHz by James Boyk

• Audio Asylum you don't have to be nuts to join in the discussions, but it helps!
• Electronic Visionary Systems Ric Schultz's site has some very interesting tweaks
• Gresh's Audio Tweaks, Suggestions, and Links just what it says (long loading time)
• Jon Risch's Audio DIY Notes & Tweak Info good tips from a serious tweaker
• Tips & Tweaks on budget HIFI equipment

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