coherencyaddict
「coherency addict」
A blog about triode amplification, recording, and finding music. I DIY my own gear in pursuit of Japanese "real sound" concept. All photos my own unless otherwise attributed.
55 posts
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Modified Quadraverb with Chris Venhaus' metal in oil tone capacitors he designed for guitarists. Also niobium resistor coming off the Burr Brown DAC.
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Finished PSU upgrades. AN pure silver, Niobium, and Sanken (not counterfeit)
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Completed RX7 (screen, audio-grade power, DAC & opamps)
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One of my favorite piano recordings. It was mastered at the now defunct Europadisk, who had one of the rare DMM lathes, which cut a metal master. Very few recordings are made with them, and the only lathe left was purchased by The Church of Scientology to cut lectures from L Ron Hubbard in the case of an apocalypse. True story.
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Roland R-8 schematic with my replacement components marked. The Burr Brown PCM Dacs ran in mono with a high frequency duplexing scheme to create stereo (explained well in the Quadraverb service manual), so replacing a single resistor (R9) to typically silver Audio Note is one of the best opportunities for sonic improvement.
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