The possibly unexpected importance of extreme detail in musical excellence. Research paper from Menno van der Veen, 122nd AES in Vienna, Austria, May 2007 ( PDF, archive ) — Summarily paraphrased: Failing to accurately transfer fine details at low levels, traditional audio output transformers nonlinearly mask the naturalness and purity of music played through them. SOURCE
Technical information. Substitutions, notes. http://milbert.com/articles#12ax7
Information on ground loops and mains hum. SOURCE
Over 90 tube amp topologies examined, further evidence of how audio output transformers inescapably present limitations and compromises. Menno Van der Veen presented at 118th AES a paper detailing a universal audio output transformer system that “includes all possible variations in topologies. The system contains 90 variations (at least) and some of them have never … Read more
Malcolm Moore has done extensive research into guitar pickups. SOURCE
Extensive information presented by University of South Wales. SOURCE
Languages were perhaps once ‘sung’. By Daniel Arthur – “Ancient alphabets were constructed by using visual symbols to represent sounds. Ancient sacred architecture was constructed to send and receive those sounds to and from the gods. Because of that, ancient languages, like Egyptian, Hebrew and Greek were more poetic and musical than our own, with … Read more
It can generate a constant 15 Hz sine wave tone at 140 dB for 24 hours a day, seven days a week with extremely low harmonic distortion. The subwoofer has a flat frequency response from 15 to 80 Hz, and is down 3 dB at 12 Hz. It can generate a constant 15 Hz sine … Read more
Ancient musical scales vibe with nature. SOURCE
