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  1. goto2003

    New Xin Reference Amp by Dr. Xin !!!

    The 2nd RE sounded very soft, or you can put it as "tube-like" out of box. It's the opposite from what I expected. After one night's burn-in, it opened up a lot yet its soundtage was very wide without the depth as in Micro. Xin told me that he ran out of parts for some caps and for whatever...
  2. goto2003

    New Xin Reference Amp by Dr. Xin !!!

    Just got the new RE board, sounding fantastic out of the box
  3. goto2003

    New Xin Reference Amp by Dr. Xin !!!

    Quote: Originally Posted by kaushama GOTO2003 are you happy with SQ of other XIN amps (MACRO, LE and MINI) after 4/12 Mods? Are they in the same league in micro? You were not very happy about them before. IMO SUPERMINI (post-4/12) though sound different has slight edge over my MACRO...
  4. goto2003

    New Xin Reference Amp by Dr. Xin !!!

    The very first batch of RE has the same circurt scheme as Macro LE, and that's why I found it sounded closer to LE other than Micro. After 5/19, Dr. Xin made some critical changes to the RE to make it closer to Micro. Even so, they are still very different. From the email in the past two days...
  5. goto2003

    Xin SuperMicro-IV VS RSA Tomahawk Impressions

    Heard of so much praises, I coudn't help from digging out the vintage Micro IV (made way back to early 06). This thing still sounds amazingly good with my HD600. Then I tried to apply some latest tweaks from Xin's; not all tweaks could be implemented without proper parts. I have to admit that...
  6. goto2003

    Is Xin still in business?

    Quote: Originally Posted by mrarroyo Like I would like for you to ship it with the AD8616 for L/R and AD8656 for 3rd/4th. In addition I would like to purchase the ST-WV that requires buffer to output more current, with two EL8201. One in the L/R after the ST-WV, one in the 3rd/4th...
  7. goto2003

    Xin's back in development mode.. again

    The current going through the batteries in Macro's with 8 AAA's or 4 AAA's is the same. The difference is 8AAA's have more headroom in voltage. Big cap lower the impedance of power supply further. 15000uf has 0.5ohm at 20HZ. Plus 4 AAA's have 1/2 internal imedance of that of 8AAA's. I...
  8. goto2003

    Xin Channel IV amp appreciation thread

    Second the idea of getting the SM3 upgraded. Sm3 can sound much better with right implementation. I still prefer my SM3 combo over SM4
  9. goto2003

    Those who waiting Xin amp, post and get your date of arrival !

    OP275 and AD8610 are more detailed than OPA627, let alone OPA2134. BB chips tend to be rich and dark.
  10. goto2003

    Free upgrade for Super macro/mini/micro III

    It seems the III with the upgrade is still III, not IV; But some tweaks developed in IV should work very well in III as well. It's a good move to have these upgrade.
  11. goto2003

    Question about Xin amps

    yes, be ready to upgrade to SM V
  12. goto2003

    Question about Xin amps

    As far as I know, you can send it in anytime you want to get the free upgrade no matter it's first hand or 2nd hand. But it's better off to hold it on a bit till thing's settled down aas the longer you wait, the more improvement in sound you can expect. Just my two cents.
  13. goto2003

    HR Bithead vs. RS Hornet Which One?

    Quote: Originally Posted by Romanee I've said that the "M" Hornet is an excellent amp, especially in certain pairings, and have endeavored to explain some of its positive qualities as briefly as possibly. It's sad that you find this inflammatory. . Thanks for the reply yet pls...
  14. goto2003

    HR Bithead vs. RS Hornet Which One?

    Quote: Originally Posted by Romanee Yup. But this is a little like the ol' Hatfields-'n-McCoys: The Xin fanboys are gonna call you (and me, of course) a Ray fanboy. It's obvious what my attitude is regarding the Hornet, having said enough about it in this thread. The one logical...
  15. goto2003

    Those who waiting Xin amp, post and get your date of arrival !

    SR71 is a great sounding portable, same as SM IV's. I am reluctant to compare the two given the continuing changes in SM IV. Unless Xin fixes his design, it's unlikely to have a conclusion. In addition, there's are many other factors other than sound to define which one is "better"; Finally...
  16. goto2003

    Those who waiting Xin amp, post and get your date of arrival !

    It's true. SM IV sounded not right to me at the begining and it's until yesterday that I found there's solder residue on it. After cleaning it off, it's much better, but still not as good as without these new tweaks. Xin knew it and hope he could have a better solution shortly.
  17. goto2003

    Upgraditis! A fatal disease: Who had the longest and strongest immunity?

    yeh, I upgraded three speaker systems in three months... a huge hole in the wallet. Now hobby in upgrading headphone seems more bearable
  18. goto2003

    Those who waiting Xin amp, post and get your date of arrival !

    As mentioned before, I have yet to tweak a SM IV offers better sound than my combo that's too bulky to carry around. Isn't it evil of upgraditis? Without the newest tweaks, it sounded close enough to my combo, but not better. When Xin told me the tweaks, as always, I was excited to try them out...
  19. goto2003

    Bigger rivals that give a run for SUPERMACRO IV for 350$?

    imho, SR71 is a safe bite in the "best sounding league". A used one in the for-sales forum is very reasonable in price for around $300.
  20. goto2003

    Those who waiting Xin amp, post and get your date of arrival !

    I haven't encountered instability issue without these last minute tweaks and compromise in sq seems too costy as I could feel the sound with these tweaks was inferior to that without them, not just sounding differently, a big compromise to me. Of course, I may have been too critical on this
  21. goto2003

    Those who waiting Xin amp, post and get your date of arrival !

    Because he used RMAA while we used our own ears.
  22. goto2003

    Those who waiting Xin amp, post and get your date of arrival !

    Quote: Originally Posted by kaushama And see how things will change when everyone gets their amps! All praise probably! human mind!!! Probably yes, probably not Xin made some last minute changes and I just tried them. Honestly, I think they made sound worse and are not my cup of...
  23. goto2003

    Comparison: Xin SupermacroIV versus Ray Samuels Audio "The Hornet"

    I can't have general comment on SM IV's sound as it changes all the time with new tweaks and different chips. These tweaks did not always improve sound, and I have yet to find out a SM IV with tweaks sounds better than my combo. Of course, I would be biased as I prefer the sound signature of the...
  24. goto2003

    Boston Meet Impressions - August 26, 2006

    Nice reviews and thanks for all those helped pulling the whole thing together. I was to try out AKG701 but ended up blown away by SP Supra Balance+R10, my favorite at the meet, Orpheus+ES1 coming next. AKG701 didn't impress me and seemed not be an upgrade from my HD600; need more time to fix the...
  25. goto2003

    Those who waiting Xin amp, post and get your date of arrival !

    Quote: Originally Posted by kaushama Though it is called channel IV layout, it is "Channel V" to my reasoning. It is essentially a PRE-POWER combo in one enclosure with separate ground channel it seems. GOTO 100% amp is stable with all opamps? How much can you tell us about new tweaks...
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