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Everything posted by o2so

  1. Item: Astell&Kern SR15 + leather case (new) Location: Sydney Price: $795 Inc shipping or $780 if picked up. Item Condition: New, bought on 6/2/2020 Reason for selling: impulsive purchase Payment Method: Pickup - Cash, Paypal, COD Only Extra Info: Two days ago I returned a pair of Campfire Audio IEM at Addicted to Audio because they were making my ears itchy. I was given a voucher and decided impulsively to use it on the spot and pick up this DAP. It's a great little player which among other things will let you use Tidal and Spotify offline, and will soon be a Roon compatible end point. it works great with all of my headphones ( Audeze, Utopia) but doesn't get overly loud on my low sensitivity planar magnetic from MrSpeakers, which require more current to play loud as I sometimes like it. It is new, used for maybe 30 minutes then back in it's box. Comes with everything that was in the box, plus receipt. The RRP is $999.for the player only. I am also including its leather case (RRP $100), which never came out of its box. So total RRP new is $1,099. It is very small and light, about half the size of a smartphone. Photos: Advertisements without photos of the actual item will not be approved.
  2. If I have to put my faith in something I will certainly choose repeated measurements and several ABX test results over a bunch of audiophyle myths or uncontrolled subjective listening sessions, knowing how demonstrably biased these can be. But I do not have to put my faith in anything, so I did my ABX tests myself. Matched volume, friend swapping components and all. This is my experience and it is fine for someone else to have a different opinion, as long as it is presented politely.
  3. Well one more reason to opt for components with low distortion, low noise, low output impedance and good linearity (in other words, components that measure well)
  4. Going back to the Topping D90, its measured performance is clearly one of the best ever seen. I am not even sure there would be a point in having such an incredibly measuring DAC when I am not aware of many other audio chain components (amplifier or speaker) that could match a signal to noise and distortion of 120 db. At that level there are other factors for me coming into play, such as customer care support and cost.
  5. My take is that if the features you mention are not in the recording, they cannot be generated by the audio chain. So, in my humble opinion, your best take to achieve what you want is to have a system as transparent to the recording as possible, good recordings, and a measured/corrected speaker/room interaction. I will reiterate that "transparent" to me does not mean "detailed" or "clinical". It means lack of coloration. You can then modify the sound signature to your taste using speakers/ room treatment/ DSP, if you like. At least that way one has more control on the final results.
  6. To me a transparent component does not introduce artifacts of its own. This can be measured but you seem to think it cannot, or not entirely. Which I guess is where all sub vs obj debates end up.
  7. Not transparent to what was happening in the studio during the recording session. Transparent to what was recorded. Transparent to what enters the DAC, whatever that is.
  8. Oh that's it then. To me transparency is what goes in, comes out unaltered. If you have a different definition then this has been a pointless dialogue
  9. Not quite sure I am following you. My understanding is that distortion is defined pretty much as the opposite of transparency. So if you measure distortion, you measure transparency. If you think I am incorrect please explain why.
  10. This is not my argument, sorry if I was not clear. My argument is that the more transparent a component is, the better it measures. This is logic when you consider how distortion measurements are undertaken. A signal is inputted in the system, and what comes out of the system in response to that input is measured. The extent to which input and output differ is the system distortion.
  11. In my opinion sound quality and transparency and two entirely different concepts. Transparency means that the system will not alter the source signal. Distortion is by definition any alteration of the source signal, and can be measured very accurately. So I believe that transparency in a component such as a DAC can be easily and consistently measured. Sound quality is entirely a matter of personal taste and as such it is not something quantifiable or measurable in any possible way. What one likes, someone else may dislike. To me, sound quality requires a transparent system, not components that add anything to the source. However I did own high distortion tube amplifiers which I thought were great fun to listen to. For a bit. Then I started to get annoyed by the coloration and moved on.
  12. I personally think this is an academic debate, really. That is, it is just a matter of opinions. Some (me included) think low distortion and excellent measured performance are desirable features in a system, because they make it transparent to the source. If your listening experience is not satisfying, then you can only blame the source. Others think that added distortion, when done in a certain way, is nice and makes the listening experience better. This is one of the arguments supporting tube-based amplification, for instance, because tubes add distortion (preferably in low order harmonics). The other reason tube amplifiers often sound different is the higher output impedance, which results in non flat frequency response where the speaker load is not flat across the frequency range (hint, it almost never is). Specifically, bumps in speaker impedance roughly correspond to bumps in frequency response, if the amplifier output impedance is relatively high. In my experience, though it is fun to experiment with tubes, in the end one always achieves results that may sound pleasant only for a limited number of music genres, or tracks. I like for instance the "tube glare" on strings, because it makes guitars sound more full, almost like a 12 strings, but I find this overwhelming in any other instrument or music genres. My understanding of the philosophy underlying ASR is that, because they consider good only components that are transparent to the source, a complete set of measurements will be all they need to establish how good a component is. This makes complete sense, if one agrees with the postulate "transparency = good". While they do some minor listening test, they openly consider these of minor importance as the ear+brain is demonstrably less sensitive than professional measuring gear. On the other hand, components that are designed to have high distortion (to add a sound signature to the source) are of no interest to ASR, because the listening experience of these components will be highly subjective, in that it will depend on a mix of personal taste and things like impedance matching within everyone's system. So there is no value, according to ASR, in saying "this sounds good", or " it has a black background", or it has a " large sound-stage" because these subjective features may not be there in someone else's system, or may not be perceived in the same way by a different person, in a different room, with different speakers and different ears+brain.
  13. @cazzesman bought my minidsp ddrc 22d, let's see what he says. This device in my opinion does wonders. It does not just adjust frequency response (which could be done in Roon too), but also phase and timing. To give you an idea, some time ago I was testing a new amplifier and I connected it out of phase by mistake, then I ran the DIRAC calibration and everything sounded perfect. It was only when I went to unplug the amp that I realised it had been connected out of phase. DIRAC had completely fixed that ! I was pretty impressed. Anyway the ddrc 22d was tested on ASR and it was concluded that it does not degrade the sound in any audible way. The flexibility DIRAC adds in terms of customisation of the curve is far superior to DSPeaker and DEQX ( I have owned both). Here is the link to the ASR test: https://www.audiosciencereview.com/forum/index.php?threads/minidsp-ddrc-22d-dirac-measurements.9010/
  14. Item: Mini DSP UMIK-1 Measurement Microphone + metal boom-stand Location: Petersham Sydney Price: $100.00 plus postage Item Condition: excellent Reason for selling: No further use as I bought a full minidsp kit which includes another umik Payment Method: anything that works but you cover any fees Extra Info: Perfectly working and excellent cosmetic condition. This is what you need to measure the frequency response of your room (this and the very easy to use software REW, free to download) and see where the issues are.
  15. Item: Nikon 28-70 f2.8 AF-S D full frame, professional zoom Location: Erskineville, Sydney Price: $700 firm Item Condition: excellent Reason for selling: not into photography anymore Payment Method: Pickup - Cash, Paypal, COD Only Extra Info: Nikon 28-70mm f/2.8 (AF-S ZOOM-NIKKOR) "The Nikon 28-70mm f/2.8 AF-S D is a spectacular lens". The lens work perfectly and as you can see from the pictures has been rarely used. Selling on behalf of a trusted friend. You will find a complete description of the lens here: https://www.kenrockwell.com/nikon/2870afs.htm Photos:
  16. Despite @F18 impulsively committing to purchase with a thread post, which is against the forum rules, these are still available.
  17. Still available at the moment I found isolation to be quite good, and I'd say the sound signature is neutral enough to play well different genres including heavy stuff. Send me a private message if you want to discuss the details.
  18. Clarification for everyone interested: THESE ARE FOR SALE. I have been tossing and turning a bit about withdrawing the AD but I have now made up my mind and these are for sale at $600.
  19. After some tossing and turning I have decided to sell these even if the price is ridiculously low
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