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![]() "Robert Morein" wrote in message ... " wrote in message news ![]() "Robert Morein" wrote in message ... "Arny Krueger" wrote in message ... "Robert Morein" wrote in message I do not give much concern to the incorporation of these devices into hifi equipment. Good idea because reed relays are common signal-handling components in quality equipment for audio production for decades. As I said before, the ruthenium plated reed relays we used had been recently used by a widely-respected manufacturer of studio mixing boards. Morein's vendetta against reed relays is yet another example of his lack of familiarity with audio production equipment, and audio in general. But Arny Krueger is pushing his device like the NBS platinum meter. This is nuts. I'm not pushing the ABC RM-2 relay module at all. RM-2 has been out of production for what, 20 years? However, no matter what Morein says - Stereophile never published a review of the ABX RM-2 relay module. Arny, permit me to clarify. I would love to have an ABX device. Here's where you can get the schematic to build one of your own, use parts of whatever quality you chose. http://sound.westhost.com/abx-tester.htm Even if it were one of yours, I would treat it as a treasured resource, unless it obviously contradicted certain observations about amplifiers that have the same certainty of audibility as you have with speakers. You reached conclusions about amplifiers that arouse in a number of us, deep suspicion. Even if someone was incapable of distinguishing the difference between a Pass single ended design and a Yamaha, it has little meaning for us. Speaking for myself, I acknowledge that there may be audible equivalence classes that transcend price and construction. Still, this is not the same as declaring an axiom. Speaking again for myself, it appears that reliance on current methods of measuring amplifier specifications produces the appearance of technical equivalance, or "proper operation", while the latter is not a properly defined term. I know that you are convinced of this through your studies of the audibility of harmonic and IM distortion, but, unfortunately, this contradicts the common experience of a great many people. It does so even when one admits imagined differences. My small club of audio buddies only acknowledge differences in amplification when it hits us on our heads, just like speakers can and do. You are, to me, a tantalizing paradox, because you are a very intelligent person who has succumbed to a personal need for definitive results. Science always benefits when the investigator is detached from the result. It always suffers from personal involvement. A good scientist serves the principal, not the end. Or, as Jobs says, "The journey is the reward." I make a lot of noise about this, because the finer points of hifi are on the verge of extinction. The endeavor is not immune to your influence. By promoting the idea that quality of reproduction is no longer a concern with commercial offerings, you do a disservice to the consumer, who is reliant on this very troubled industry. A possibility to consider is that your ABX design is adequate to the job, yet, in your investigations, you made other errors. I have written in a colorful style, to bring attention to the issue. Because you promote your device, or others like it as a standard, It's not him doing the promoting, DBT IS the standard. it requires scrutiny far above the norm. Which has been done by many of his peers and people more involved in audio research than Arny ever was. That is how it became one of the accepted protocols. But not for hifi, Mikey. Yes Robert, even for hi-fi. Unless you don't consider Revel or a host of others to be hi fi companies. |