Rt66indierock Posted June 28, 2019 Share Posted June 28, 2019 Thanks for answering my question about the DIY market. DuckToller 1 Link to comment
Matias Posted June 28, 2019 Share Posted June 28, 2019 Thanks a lot! DuckToller 1 1. WiiM Pro - Mola Mola Makua - Apollon NCx500+SS2590 - March Audio Sointuva AWG 2. LG 77C1 - Marantz SR7005 - Apollon NC502MP+NC252MP - Monitor Audio PL100+PLC150+C265 - SVS SB-3000 3. PC - RME ADI-2 DAC FS - Neumann KH 80 DSP 4. Phone - Tanchjim Space - Truthear Zero Red 5. PC - Keysion ES2981 - Truthear Zero Red Link to comment
Ralf11 Posted June 28, 2019 Share Posted June 28, 2019 https://www.dtu.dk/english/service/phonebook/person?id=4801&tab=2&qt=dtupublicationquery#tabs Link to comment
The Computer Audiophile Posted June 28, 2019 Share Posted June 28, 2019 1 hour ago, Ralf11 said: https://www.dtu.dk/english/service/phonebook/person?id=4801&tab=2&qt=dtupublicationquery#tabs You lost me. Founder of Audiophile Style | My Audio Systems Link to comment
Ralf11 Posted June 28, 2019 Share Posted June 28, 2019 look to who trained them - he is in the article you? wrote Link to comment
DuckToller Posted June 28, 2019 Author Share Posted June 28, 2019 38 minutes ago, The Computer Audiophile said: You lost me @The Computer Audiophile What Ralf11 imho tried to express, Prof Andersen is "The Godfather" of Danish Class D, and the last 2 years he was going strong on GaNFET's in his research. @Ralf11 Chris edited the 20+ pages, it is less about details picking in this ocean of information. Best Tom The Computer Audiophile 1 Link to comment
fas42 Posted June 28, 2019 Share Posted June 28, 2019 A quick peruse says it's all about the feedback - what I'll be curious to see is if that control loop is good enough to handle anything thrown at it - such as a somewhat duff PS, plenty of interference junk floating around, and speakers with crazy electrical characteristics. Link to comment
Matias Posted June 29, 2019 Share Posted June 29, 2019 10 hours ago, fas42 said: A quick peruse says it's all about the feedback - what I'll be curious to see is if that control loop is good enough to handle anything thrown at it - such as a somewhat duff PS, plenty of interference junk floating around, and speakers with crazy electrical characteristics. I guess that is what he stressed on the article, all the different unbehaved test cases he tried, and his team of reliability experts. 1. WiiM Pro - Mola Mola Makua - Apollon NCx500+SS2590 - March Audio Sointuva AWG 2. LG 77C1 - Marantz SR7005 - Apollon NC502MP+NC252MP - Monitor Audio PL100+PLC150+C265 - SVS SB-3000 3. PC - RME ADI-2 DAC FS - Neumann KH 80 DSP 4. Phone - Tanchjim Space - Truthear Zero Red 5. PC - Keysion ES2981 - Truthear Zero Red Link to comment
Popular Post Ralf11 Posted June 29, 2019 Popular Post Share Posted June 29, 2019 21 hours ago, DuckToller said: @The Computer Audiophile What Ralf11 imho tried to express, Prof Andersen is "The Godfather" of Danish Class D, and the last 2 years he was going strong on GaNFET's in his research. @Ralf11 Chris edited the 20+ pages, it is less about details picking in this ocean of information. Best Tom I also selected his publications tab in his CV, which may be worthwhile reading for some AFAIK, his interest is in PS generally - and some applications are FAR more important than HiFi esldude, DuckToller and jabbr 2 1 Link to comment
Popular Post esldude Posted July 1, 2019 Popular Post Share Posted July 1, 2019 Thanks to Chris and Duck Toller for doing this article for us. Feedback full ahead captain. DuckToller, fas42 and Jud 2 1 And always keep in mind: Cognitive biases, like seeing optical illusions are a sign of a normally functioning brain. We all have them, it’s nothing to be ashamed about, but it is something that affects our objective evaluation of reality. Link to comment
firedog Posted July 1, 2019 Share Posted July 1, 2019 https://6moons.com/audioreview_articles/purifi/ 6moons got a chance to audition some demo amps. The short version: they said these amps can slug it out with the big boys, and from direct sales vendors like Nord, will probably be extremely good amps for what the audiophile market thinks isn't a lot of money. NAD is apparently coming out with a 2 channel version, it will be interesting to see how it's priced. They did some very nice NCore based implementations before this, and prices weren't in the stratosphere. The Computer Audiophile 1 Main listening (small home office): Main setup: Surge protector +>Isol-8 Mini sub Axis Power Strip/Isolation>QuietPC Low Noise Server>Roon (Audiolense DRC)>Stack Audio Link II>Kii Control>Kii Three (on their own electric circuit) >GIK Room Treatments. Secondary Path: Server with Audiolense RC>RPi4 or analog>Cayin iDAC6 MKII (tube mode) (XLR)>Kii Three . Bedroom: SBTouch to Cambridge Soundworks Desktop Setup. Living Room/Kitchen: Ropieee (RPi3b+ with touchscreen) + Schiit Modi3E to a pair of Morel Hogtalare. All absolute statements about audio are false Link to comment
PYP Posted July 3, 2019 Share Posted July 3, 2019 Had a NAD Ncore-based amp prior to getting Kalugas. The NAD was a very nice amp for the money. Glad Bruno made the point that class D sounds warm, etc. if the recording is warm. Very true. What you don't get is homogenized sound, which can be nice when recordings aren't very good. That isn't to say the Kalugas, for example, are ruthlessly revealing. Quite the contrary: I'm amazed how they sound with internet radio. But they don't reach the amazing levels they are capable of with such material. Good old rebook, well recorded, does produce like-live sound and that works for me. What an amazing group of talented engineers, designers, original thinkers and doers. Thank you for the article. DuckToller 1 Grimm Audio MU1 > Mola Mola Tambaqui > Mola Mola Kaluga > B&W 803 D3 Cables: Kubala-Sosna Power management: Shunyata Room: Vicoustics “Nature is pleased with simplicity.” Isaac Newton "As neither the enjoyment nor the capacity of producing musical notes are faculties of the least use to man...they must be ranked among the most mysterious with which he is endowed." Charles Darwin - The Descent of Man Link to comment
firedog Posted July 3, 2019 Share Posted July 3, 2019 7 hours ago, PYP said: Glad Bruno made the point that class D sounds warm, etc. if the recording is warm. Very true. What you don't get is homogenized sound, which can be nice when recordings aren't very good Yep, my NCore based system sounds warm on recordings that are - such as good recordings of acoustic jazz and classical. On other stuff, mostly some modern popular music such as pop-rock-hip-hop - it can sound like too much is on the high end. But that's what's on the recording. Fortunately, with modern technology I can use DSP to moderate the high frequency output at the flick of a (remote) switch anytime I want. Main listening (small home office): Main setup: Surge protector +>Isol-8 Mini sub Axis Power Strip/Isolation>QuietPC Low Noise Server>Roon (Audiolense DRC)>Stack Audio Link II>Kii Control>Kii Three (on their own electric circuit) >GIK Room Treatments. Secondary Path: Server with Audiolense RC>RPi4 or analog>Cayin iDAC6 MKII (tube mode) (XLR)>Kii Three . Bedroom: SBTouch to Cambridge Soundworks Desktop Setup. Living Room/Kitchen: Ropieee (RPi3b+ with touchscreen) + Schiit Modi3E to a pair of Morel Hogtalare. All absolute statements about audio are false Link to comment
monteverdi Posted July 4, 2019 Share Posted July 4, 2019 I am very happy that Purifi is also considering DIY with their modules. As amp technology is advancing to very small distortion levels it may be more interesting to focus on loudspeaker distortion. Purifi shows a mid woofer and claim it is designed to reduce driver distortion. The surround has an interesting shape: half rolled forward and half back. A rolled forward surround distorts with large movement forward (and rolled back the reverse) so does this shape really remove this distortion? They also claim low magnetic distortion. Is this an iron less design? Link to comment
esldude Posted July 5, 2019 Share Posted July 5, 2019 https://www.audiosciencereview.com/forum/index.php?threads/review-and-measurements-of-purifi-1et400a-amplifier.7984/ Here are measurements of the Purifi amp. Results are very good. DuckToller 1 And always keep in mind: Cognitive biases, like seeing optical illusions are a sign of a normally functioning brain. We all have them, it’s nothing to be ashamed about, but it is something that affects our objective evaluation of reality. Link to comment
DuckToller Posted July 5, 2019 Author Share Posted July 5, 2019 @esldude Thank you, I was waiting for that .... 😉 Cheers, Tom esldude 1 Link to comment
Popular Post Matias Posted July 5, 2019 Popular Post Share Posted July 5, 2019 6 hours ago, esldude said: https://www.audiosciencereview.com/forum/index.php?threads/review-and-measurements-of-purifi-1et400a-amplifier.7984/ Here are measurements of the Purifi amp. Results are very good. Bruno is going to answer more questions in the thread above. DuckToller and esldude 2 1. WiiM Pro - Mola Mola Makua - Apollon NCx500+SS2590 - March Audio Sointuva AWG 2. LG 77C1 - Marantz SR7005 - Apollon NC502MP+NC252MP - Monitor Audio PL100+PLC150+C265 - SVS SB-3000 3. PC - RME ADI-2 DAC FS - Neumann KH 80 DSP 4. Phone - Tanchjim Space - Truthear Zero Red 5. PC - Keysion ES2981 - Truthear Zero Red Link to comment
sapporo Posted July 6, 2019 Share Posted July 6, 2019 Was there anything more about the drivers before editing the interview? Link to comment
DuckToller Posted July 6, 2019 Author Share Posted July 6, 2019 28 minutes ago, sapporo said: Was there anything more about the drivers before editing the interview? No, this is the original response from Les Purifiens. Not much was questioned regarding woofer&driver in the Q&A-thread, as Bruno noted in one of his answers. Cheers, Tom Link to comment
Popular Post TimDH Posted July 13, 2019 Popular Post Share Posted July 13, 2019 Yes, I would love to learn more about the drivers. From the initial information they seem to reduce distortion by 20-30 dB which may be much more significant than further amplifier improvements Emlin and DuckToller 1 1 Link to comment
I=E/R it'sthelaw Posted July 24, 2019 Share Posted July 24, 2019 Thanks for the fabulous interviews! DuckToller 1 Link to comment
DuckToller Posted July 24, 2019 Author Share Posted July 24, 2019 I need to admit, that the impression has arrived with me, that Lars & Bruno's answers were somehow quite exhaustive and do not leave a lot of space to continue questionings, if you compare for example the response1 and 2 from Bruno over @ ASR , there are now even questions about desert island discs answered, which I personally find quite interesting ... (Bruno does like the The Waterboys, so do I!) Best, Tom Link to comment
R1200CL Posted September 12, 2020 Share Posted September 12, 2020 It would be nice if someone could do a text version if this interview. There are tools that can do automatic speech to text transcription available. Link to comment
DuckToller Posted October 12, 2020 Author Share Posted October 12, 2020 On 9/12/2020 at 5:51 PM, R1200CL said: t would be nice if someone could do a text version if this interview. There are tools that can do automatic speech to text transcription available. You'd better ask the content provider/s if he would do that. For any other publisher that would prove to be difficult for copyright reasons, I'd guess. Would that work for you uploading it to youtube and use automated subtitles ? Link to comment
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