Recent content by ]eep
  1. ]eep

    LAiV Harmony R2R DAC Impression and Reviews

    J That's really comparing apples and pears. Only SD DACs need amplification by tubes or opamp. R2R (except some old IC based) do not need tubes. In my experience tubes don't inject any magic. I have a lot of tube gear bit i don't like tube buffers. In most cases (I'm not saying always) tubes...
  2. ]eep

    LAiV Harmony R2R DAC Impression and Reviews

    Hard to tell without properly defining what you mean by those terms. They are very subjective, and can mean all sorts of things to different people. One man's neutral is another ones lifeless, one man's warm is another ones lacking detail. Just read or watch some reviews. Most will say neutral...
  3. ]eep

    LAiV Harmony R2R DAC Impression and Reviews

    I was editing... I always first finish the essay and edit the specifics in later. Links are added now.
  4. ]eep

    LAiV Harmony R2R DAC Impression and Reviews

    So we agree pretty much. Just talking about different aspects. I was specifically not talking about digital time domain (jitter). And you do. You speak about ringing and sigma delta, I about it's absence in NOS R2R. Look at the first page of the Pasithea review on 6Moons. That plot is so clean...
  5. ]eep

    LAiV Harmony R2R DAC Impression and Reviews

    Nope. That's why I didn't go in to it. It's just a statistical rounded off average. I could hear it too at that age. Not anymore. Instead I am rewarded a constant high pitched tone in both my ears. That's called tinnitus... The 20-20kHz is just an easy to remember number we learn in school. So...
  6. ]eep

    LAiV Harmony R2R DAC Impression and Reviews

    I disagree on a few things. Or let me redefine the framework. And get some definitions straight. Broaden the horizon so to say. I learned a lot in school, but what I learned best is that most teachers have no idea what they are teaching you. Besides the language and math you get indoctrinated...
  7. ]eep

    LAiV Harmony R2R DAC Impression and Reviews

    Very interesting. In my understanding there is no dac chip inside the Laiv. How else do we explain the stated resistor tolerances. And the specs don't point to this either. I was assuming there is no chip inside. But what made me suspicious is the small size of the gold wrapped R2R modules...
  8. ]eep

    LAiV Harmony R2R DAC Impression and Reviews

    This is always a difficult subject. And there is a diffentiation that is often underestimated. I'll try to explain short and sweet. Transducers that convert electrical to dynamic energy or vice versa (microphones, pickups and speaker drivers) have a hard time keeping the amplitude linear over...
  9. ]eep

    LAiV Harmony R2R DAC Impression and Reviews

    What dac chip do you mean? There is no dac chip in an R2R dac that already puts out line level voltage. With a SD dac chip there is only very low voltage and you need an elaborate well made I/V stage (or opamps, or tubes or discrete transistors). Then you can implement a volume control. But...
  10. ]eep

    LAiV Harmony R2R DAC Impression and Reviews

    I think you are only speaking from your specific situation and preferences. Not general opinions or uses. Keywords: "for me". You state: "AES is the best output". Not true You should have stated: " I think AES is the best output from my DDC". True. You are also pretty opinionated on the use of...
  11. ]eep

    LAiV Harmony R2R DAC Impression and Reviews

    Can you make a direct link to YouTube? I'm now watching it on Rosetube so I can't get the link.
  12. ]eep

    LAiV Harmony R2R DAC Impression and Reviews

    1 The output impedance is actually 600Ω If you use the balanced output it doubles, because you have 2 signal wires. This is a pure dac. Not a preamp. You are not supposed to directly connect it to a poweramp. If that poweramp has a balanced input it seems to me that 10k is rather low. 2 AES...
  13. ]eep

    LAiV Harmony R2R DAC Impression and Reviews

    That is not true. You are forgetting scalability. Like DACs have an output stage that is very defining for the quality so do speakers have an input filter. Exception R2R DACs and fullrange speakers. In budget speakers this crossover is often hidden and made of very cheesy parts. You need to see...
  14. ]eep

    LAiV Harmony R2R DAC Impression and Reviews

    I didn't say they weren't professional. It's just the payment and transport service I have a problem with. Transport services can be really, really annoying. I'm now in a heated dispute with FedEx, and a friend had stuff from Hermes that just vanished... I tried to buy a pair of Fosi ZA3 but I...
  15. ]eep

    LAiV Harmony R2R DAC Impression and Reviews

    It's 600 for single ended, which is ok. Balanced needs to double that of course. The input impedance of balanced inputs should be double too.
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