WebJul 5, 2007 · hi guys, i have a pair of these offerred for roughly $1,600. they are mk1 meaning early 90s vintage or so. the only thing i know about them - except for lots of positive comments - is they are hell to bias, as you have to open the amp and do some serious magic to access the circuit. anyway - i am wondering what are the thoughts about it and … WebSep 27, 2024 · In addition to what's been said yet: EAR 509, a Tim de Paravicini design, features unity coupling output transformers, exactly the way Gordon Gow and Frank McIntosh did it. The primary is trifilar, like in early MC275's. ... According to the schematics, the amp features two 12AX7's, one ECC85 and a pair of PL509's, doesn't it?
EAR Yoshino EAR 509 Mono
WebBuilt to professional standards. Advanced Industrial grade high capacity valves not used in any domestic amplifier. EAR amplifiers proven in studio use. Accurate simple self-biasing for user replacement of valves when … WebThis amp more than any other is responsible for the commercial success and revolution, if you will, wrought by single-ended triode designs in the early 90s. EAR Yoshino 509 The major innovation is Tim de Paravicini’s … flowery maxi dresses
Best measuring tube amp Audio Science Review (ASR) Forum
WebValve Amplifier Made in England by EAR Yoshino. High End audio hifi including Power Amps, Vacuum Tube Photostage Pre-amps, DACs, CD players, Vinyl turntables. EAR Yoshino's by Tim de Paravicini. EAR … WebThat company had a short life, so I decided to go it alone. I designed and made my first amplifier, the EAR 509, which was a true 100W monoblock valve amp. That was the amplifier I reviewed for Hi-Fl News back in 1978. It had the most amazing performance for a valve amp that I had ever come across, having designed and built them myself in the past. WebHistory. Founding EAR - Esoteric Audio Research Ltd was established in England in 1976 with the EAR 509, a 100 watt valve monoblock power amplifier. The product was a balance of performance, reliability, size and cost which is why it is still in production today. The power amplifier left a solid foundation to design future EAR products. green bush whiskey