Universal Audio Output Transformer

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

Math and Geometry of Music: Linking Sight and Sound

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

Sound Quality in Car Audio

What is “sound quality”? Measurement Mania Not long ago, and presently in many circles, sound quality (“SQ”) was said to be best represented by audio systems amplifying with the lowest Total Harmonic Distortion (“THD”) measurement. Overlapping the THD focus was realization and consideration of Transient Intermodulation Distortion (“TIM”, AKA Slew-Induced Distortion “SID”), also a quantitative measurement said to … Read more