collage-2EAR-Yoshino amplifiers are unequaled in their ability to deliver a pure rendition of the signal fed into them, free from the coloration and distortion of most amplifiers. Tim de Paravicini has been instrumental in investigating the role of ultrasonic resonances in amplifier circuits and their effect on transient response. He has also undertaken significant original research on the subjective effects of distortion. This research has not only facilitated the interpretation of amplifier measurements, but has shed light upon the correlation between measurements and sound quality. The results are easy to appreciate.  EAR-Yoshino amplifiers are among the most accurate & musical amplifiers ever made.