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  1. cal3713

    System upgrade

    A beautiful and incredibly fun system. I hope you keep posting comparisons, evaluations, and updates for a long time to come. Looking forward to reading more as the posts come in...
  2. cal3713

    Vinyl Bars/Audiophile Bars/Japanese Jazz Cafe's

    Sorry about that! I edited to stop any confusion...
  3. cal3713

    Vinyl Bars/Audiophile Bars/Japanese Jazz Cafe's

    I appreciate the idea, but it seems that it's mostly just proposing to people that they spend a bunch of capital, time, and effort creating a new high-risk business venture that you'll tangentially help out with (without taking on any risk yourself). It's not surprising that they don't find that...
  4. cal3713

    UFO plunges into the water while being tracked

    Ha. You know no-one can give you what you ask for. The answer is in statistics/probabilities and evidence for the preponderance of solar systems and galaxies just like ours. We already know that the odds of life emerging from the chaos is > 0. So multiply that small, but non-zero number, by...
  5. cal3713

    KeithR's "Dream Speaker" Search

    All of those comparisons were with the exact same amplifier (I built my own First Watt F4 with premium parts), and without any change in power rating, hence my strong belief in the importance of dual mono power supplies.
  6. cal3713

    KeithR's "Dream Speaker" Search

    I'm also a strong believer in the importance of non-shared power supplies for each channel. People tend to focus on increased power capacity as the cause of more "relaxed" amplifier performance with monoblocks, but I've found that adding independent power supplies is also a factor. I actually...
  7. cal3713

    The argument for/against room treatment

    Thanks. A scientist... https://scholar.google.com/citations?user=NQGcNPQAAAAJ&hl=en
  8. cal3713

    The argument for/against room treatment

    The more work your brain does, the more listening feels like work.
  9. cal3713

    The argument for/against room treatment

    I don't get it. I don't get it. You agree that room treatments matter. You also believe that system quality matters. What's there to argue about?
  10. cal3713

    KeithR's "Dream Speaker" Search

    Thanks Keith. Despite eventually settling on Pass (FW) myself, I also did not fall for the XA25.
  11. cal3713

    KeithR's "Dream Speaker" Search

    Looking forward to reading about the comparisons. A fun set of three you've got there. What are you currently using (sorry, I've forgotten and the thread can be challenging to navigate)?
  12. cal3713

    KeithR's "Dream Speaker" Search

    It is also one way to use the First Watt F4 -- you just tie the speaker outputs of the SET to the RCA inputs of the F4 and add a resistor to load the SET appropriately. The interesting thing is that because the SET is only seeing a constant impedance (8 or 16 ohms, or whatever works best), you...
  13. cal3713

    Trying the ZR Acoustics Panels

    I would absolutely love it if these worked, although again, I just don't see how the physics of it is possible. The demonstration I'd like to see is a youtube video of one of these curtains being draped over a playing speaker. If they do what they say, it should immediately mute the speaker...
  14. cal3713

    KeithR's "Dream Speaker" Search

    Everything sounds like its parts.
  15. cal3713

    KeithR's "Dream Speaker" Search

    Not favorites, but here are two that I've listened to recently. As always, tough to characterize timbre when the sounds are built, but there's a ton of complexity in those that are. Plus lots of layering, and they're going to push the 20s on both ends... Arca - &&&&& The Comet is Coming -...
  16. cal3713

    KeithR's "Dream Speaker" Search

    We must be listening to different electronica.
  17. cal3713

    KeithR's "Dream Speaker" Search

    All that matters is that Keith heard them both in his room and preferred the Fynes. If you're buying for someone else's ears, you're doing it wrong.
  18. cal3713

    The argument for/against room treatment

    I'm sorry, but your argument falls apart when pushed to extremes. You really believe that you won't need room treatments if you drop a high quality system into a huge tin box?? Or a location that echoes over and over and over?? If an actual band would sound like shit in some location, so...
  19. cal3713

    Field Coils for Audio Systems

    If you had to sell it all but could keep a source, pre, amp, & speaker, what would they be? Would you be willing to play that game?
  20. cal3713

    Field Coils for Audio Systems

    Very exciting.
  21. cal3713

    Field Coils for Audio Systems

    @Audiophile Bill Any updates on your field coil experiments??
  22. cal3713

    Stepping up in Pass Labs Amp series - aka 600.8 vs 200.8

    Excellent post. Always good to remind ourselves that they are called systems for a reason. Tough to even remember that yourself as you try equipment... until you change speakers and everything changes.
  23. cal3713

    KeithR's "Dream Speaker" Search

    Agreed. You'll need to love your preamp. If you have sensitive speakers, you can get by with a pre that won't drive the F4 to clipping. I have a single stage dht that uses a single eml 20a high-mu driver tube to provide all voltage gain. Custom built by Radu Tarta. Regardless, according to...
  24. cal3713

    KeithR's "Dream Speaker" Search

    "And so it was said... after 154 pages of posts, ye' shall reach the promised land."
  25. cal3713

    KeithR's "Dream Speaker" Search

    From Nelson Pass: "The combination of a simple Class A circuit operated without feedback and the good objective performance gives us a superb sounding amplifier. The low distortion, bandwidth extension, and high damping results in midrange clarity, treble detail, and control on the bottom end...
  26. cal3713

    KeithR's "Dream Speaker" Search

    Keith, since you are interested in sampling from the first watt catalog, I'd encourage you to try an F4 if you can find one (or commission a build). In my system I've had an xa-30.5, x250.5, xa25, sit2, and sit3 clone (the Sissy SIT designed over on diy audio), and the F4 is the best of the...
  27. cal3713

    Visit to Audiophile Bill to hear his horns project

    A useful picture, thanks. (And I'll note that my above comment was just to fix your typo from "as much as possible").
  28. cal3713

    Visit to Audiophile Bill to hear his horns project

    As little as possible??
  29. cal3713

    Visit to Audiophile Bill to hear his horns project

    Indeed, this is clearly the way to go. Especially with the ability to use something like a minidsp to dial in crossover slopes and points before committing to a hardware solution... or just copying existing designs that people so kindly share in order to improve music for everyone else. Thanks...
  30. cal3713

    Visit to Audiophile Bill to hear his horns project

    I'll take yours instead, thanks.

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