sennfan83261
500+ Head-Fier
2. Sony's MDR-R10 patents expired long ago, so whatever those patents taught is in the public domain for anyone to make, use, or sell. The exclusionary benefit that Sony enjoyed when those patents were in force has long since been extinguished.1. Unless all of the original tooling exists and could be acquired, producing it exactly as it was would be an expensive process and not 100% guaranteed to actually work, especially if you're trying to reverse engineer it rather than having access to the original designs
2. Companies generally want their own intellectual property that they control for financial security
3. Most companies capable of doing it aren't as shameless as Hifiman and would probably dismiss the project as ethically dubious from the start, regardless of legality.
4. I haven't heard the R10, so maybe it is a truly magical experience and I'm barking up the wrong tree, but I bet its rarity and legend are a big part of why its so highly regarded and I'm skeptical that a new production run that measured exactly the same would be as well-received.
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