Superdad Posted August 4, 2017 Share Posted August 4, 2017 Cool topic gents! (And @elcorso, it's good to see you about here more again.) I'm typing on my phone so I'll be brief with a couple of comments: a) the idea--and execution--of our USPCB A>B Adapter is to perfectly relay whatever USB waveforms it is given, passing them through without altering signal integrity at all. Think of it simply as a circuit board extension of, typically, the output of the ISO REGEN. That is really what it is. 4-layer PCB, microstrip trace impedance control, layers used for ground/shielding, even the pins of our male 'B' plug PCB-mount innovation taken into account. b) If people enjoy/prefer a USB cable after the ISO REGEN, that is perfectly fine. It just means they are preferring whatever alteration/effect that cable has on signal integrity and impedance match. c) Idealized SI (see our published eye-patterns) is just one of the goals of the ISO REGEN. The SQ contribution of the Crystek 575 is easily heard (and was compared during development) yet I doubt the eye-pattern would spotlight that. d) It is possible that preserving perfect SI is not necessarily the very best thing for SQ. Maybe starting with great signal integrity and isolation coming out of the ISO REGEN and then altering it in a deliberate way (something Peter--perhaps unlike other USB cable makers--may be doing intentionally) can result in something desirable. e) It is important to keep in mind that the purpose and mechanism by which USB cables and hub-based regenerators work is in altering what goes on inside the DAC's USB input stage--specifically the PHY and processor. Ground-plane noise and bounce, packet-data noise, excess spurious voltages generated (all ways of saying mostly the same thing) can and do occur in the DAC's USB input. And even digital isolators (so called "galvanic isolation") on the I2S output lines after the USB processor will pass along stuff that gets "baked into" the signal (John wrote a full technical explanation of how that happens). Ultimately we hear this because of its effect on the DAC's master clock at the DAC chip's clock input pin. That is measurable. My sample of @PeterSt's Lush cable gets delivered today, but I am on the other side of the country visiting my father with my teenage sons for the weekend. I'll try to take a listen next week. One thing I wonder is if folks enjoy the effect of the Lush after the ISO REGEN, would a shorty version, (ala what a few other firms started producing in the wake of the original USB REGEN's massive success in 2015-16) sound better? Or is there some aspect to the inductance/capacitance/impedance characteristic of the Lush that its effect is enhanced by the length? I am open-minded as always. --Alex C. UpTone Audio LLC Link to comment
rickca Posted August 4, 2017 Share Posted August 4, 2017 20 minutes ago, Superdad said: One thing I wonder is if folks enjoy the effect of the Lush after the ISO REGEN, would a shorty version, (ala what a few other firms started producing in the wake of the original USB REGEN's massive success in 2015-16) sound better? Or is there some aspect to the inductance/capacitance/impedance characteristic of the Lush that its effect is enhanced by the length? Alex, following is from Peter's Phasure forum post: 70cm is the shortest length which is mainly because of the somewhat odd bending capabilities of the cable;At the "A" side of the cable (this is the PC side) the cable is made so that it can bend up and down - not sideways. At the "B" side (DAC side) it only bends side ways.Both combined implies that you need a bit of length to go from the one device to the other. Pareto Audio AMD 7700 Server --> Berkeley Alpha USB --> Jeff Rowland Aeris --> Jeff Rowland 625 S2 --> Focal Utopia 3 Diablos with 2 x Focal Electra SW 1000 BE subs i7-6700K/Windows 10 --> EVGA Nu Audio Card --> Focal CMS50's Link to comment
austinpop Posted August 4, 2017 Share Posted August 4, 2017 I just posted my impressions of Lush over here: Right now the sequence of USB connectors in my baroque USB chain is: Curious - USPCB - Lush > DAC. I hit an equipment snafu - @Superdad - check your email - but I will eventually try other sequences. My Audio Setup Link to comment
Popular Post Superdad Posted August 4, 2017 Popular Post Share Posted August 4, 2017 14 minutes ago, rickca said: Alex, following is from Peter's Phasure forum post: 70cm is the shortest length which is mainly because of the somewhat odd bending capabilities of the cable;At the "A" side of the cable (this is the PC side) the cable is made so that it can bend up and down - not sideways. At the "B" side (DAC side) it only bends side ways.Both combined implies that you need a bit of length to go from the one device to the other. Oh crap! First I have seen this info. From this now I think I might know what the Lush is about and we may once again have a case of working privately with similar techniques on opposite sides of the world. This could impact a product we have had in the works for a while. I want to say this publicly before I ever touch @PeterSt's cable (it arrives at my door in California today while I am in North Carolina for the weekend.). I will say or reveal nothing more on the topic of construction--and I certainly could be all wrong. But hmm... Jeremy Anderson, johndoe21ro and jventer 3 UpTone Audio LLC Link to comment
Popular Post JohnSwenson Posted August 4, 2017 Popular Post Share Posted August 4, 2017 37 minutes ago, Superdad said: Cool topic gents! (And @elcorso, it's good to see you about here more again.) I'm typing on my phone so I'll be brief with a couple of comments: a) the idea--and execution--of our USPCB A>B Adapter is to perfectly relay whatever USB waveforms it is given, passing them through without altering signal integrity at all. Think of it simply as a circuit board extension of, typically, the output of the ISO REGEN. That is really what it is. 4-layer PCB, microstrip trace impedance control, layers used for ground/shielding, even the pins of our male 'B' plug PCB-mount innovation taken into account. It's actually stripline not microstrip. Microstrip has the data lines sitting above a ground plane. If done right this gives proper impedance match, but the signal lines can still pick up external fields (interference). In stripline the data lines are sandwiched between two ground planes, this gives almost perfect shielding as well as the proper impedance control. Stripline is much more complicated to get right, but is the best way to go when done correctly. John S. johndoe21ro, Siltech817, ssh and 1 other 2 1 1 Link to comment
rickca Posted August 4, 2017 Share Posted August 4, 2017 1 minute ago, Superdad said: From this now I think I might know what the Lush is about You may be the only one besides Peter! There has been a furious wave of speculation and probably most of it is off the mark. jventer 1 Pareto Audio AMD 7700 Server --> Berkeley Alpha USB --> Jeff Rowland Aeris --> Jeff Rowland 625 S2 --> Focal Utopia 3 Diablos with 2 x Focal Electra SW 1000 BE subs i7-6700K/Windows 10 --> EVGA Nu Audio Card --> Focal CMS50's Link to comment
k-man Posted August 4, 2017 Share Posted August 4, 2017 3 hours ago, Superdad said: From this now I think I might know what the Lush is about and we may once again have a case of working privately with similar techniques on opposite sides of the world. Project Shush Link to comment
austinpop Posted August 4, 2017 Share Posted August 4, 2017 All very hush-hush. My Audio Setup Link to comment
Speed Racer Posted August 4, 2017 Share Posted August 4, 2017 All of this crap is just another reason to get completely away from USB! Link to comment
m3lraaHnevetS Posted August 4, 2017 Share Posted August 4, 2017 17 minutes ago, Speed Racer said: All of this crap is just another reason to get completely away from USB! Maybe even leave this forum...? johndoe21ro 1 Pink Faun Streamer —> Pink Faun DAC --> Ayre AX5 --> Paradigm S8 Link to comment
elcorso Posted August 4, 2017 Share Posted August 4, 2017 6 hours ago, wisnon said: Roch, do you have the superclocks on your B7? No, it is almost a first generation B7. Roch Link to comment
elcorso Posted August 4, 2017 Share Posted August 4, 2017 34 minutes ago, m3lraaHnevetS said: Maybe even leave this forum...? There is a digital non USB forum? Roch Link to comment
m3lraaHnevetS Posted August 4, 2017 Share Posted August 4, 2017 4 minutes ago, elcorso said: There is a digital non USB forum? Roch Straight i2s, only for the sexy people mind you Pink Faun Streamer —> Pink Faun DAC --> Ayre AX5 --> Paradigm S8 Link to comment
asdf1000 Posted August 5, 2017 Share Posted August 5, 2017 6 hours ago, Superdad said: we may once again have a case of working privately with similar techniques on opposite sides of the world. This could impact a product we have had in the works for a while. Wowza. My ears popped up at multiple things here Link to comment
BigAlMc Posted August 5, 2017 Share Posted August 5, 2017 On 04/08/2017 at 2:26 AM, lmitche said: I am finally satisfied with the quality of the music produced by my system. Wow! Quite a statement. I've read quite a few of your posts so this is saying something. Synergistic Research Powercell UEF SE > Sonore OpticalModule (LPS-1.2 & DXP-1A5DSC) > EtherRegen (SR4T & DXP-1A5DSC) > (Sablon 2020 LAN) Innuos PhoenixNet > Muon Streaming System > Grimm MU1 > (Sablon 2020 AES) > Mola Mola Tambaqui DAC > PS Audio M1200 monoblocks > Focal Sopra No2 speakers Link to comment
Popular Post lmitche Posted August 5, 2017 Popular Post Share Posted August 5, 2017 3 hours ago, BigAlMc said: Wow! Quite a statement. I've read quite a few of your posts so this is saying something. Yes, well I spent yesterday afternoon listening to the system of one of the best known and longest practicing audiophiles in the Northeastern US. We know each others systems quite well. Each system has evolved over many years. For reference, to purchase similar components at retail today would be in the $40 to $50k range. Don't worry, neither of us paid retail or anywhere near it. We agreed that my system is on par with his, and this happened despite completely different choices of components and approaches, mine CA, his CD and LP. While individual sound characteristics of each system varies in strength or weakness, taken as a whole there is a sameness in the level of musicality and engagement. It is a very high level. The digital side of my system is well documented here. With one exception, it uses commodity, off the shelf computer, not audiophile, components. Not until the signal leaves the PC does it meet audiophile components, the USPCB, ISO Regen (powered by LPS-1), and Lush cable. The ISO Regen adds clarity and density to the signal, the Lush cable adds PRAT(Pace, Rythym and Timing). World class audiophile software Audiophile Optimizer and Hqplayer complete the picture. Together one gets music worthy of an audiophile that competes with the best non-CA systems in the world. That is pretty satisfying. Is it perfect? No. But perfect is the enemy of good and this is really good. I feel grateful to Alex Crespi, John Swenson, PeterSt and Jesus R. for their world class, high value digital audio components and Jussi and Phil for their software. Their entrepreneurial efforts allow the rest of us to enjoy these innovations. Chris has enabled a global, crowd sourced Research and Development team for digital audio, which is funded a Regen, microrendu, USB cable, AO and Hqplayer license at a time. Together much progress has been made and it is a remarkable achievement that this approach is at least as fruitful, if not more so, as R&D from any traditional audio company out there. At this point, I only wish that we had the time and money to figure out how this stuff really works! It seems to me that any progress is made through trial and error, and not a clear understanding of the fundamental mechanisms at work. Nevertheless it is good to know there is much more to discover and many more achievements ahead. Larry Forehaven, Doak, PeterSt and 14 others 8 7 2 Pareto Audio aka nuckleheadaudio Link to comment
Guidof Posted August 10, 2017 Share Posted August 10, 2017 @Superdad : Have you had a chance to try your LUSH cable? Any impressions? Positioning? Best regards, Guido F. For my system details, please see my profile. Thank you. Link to comment
Superdad Posted August 10, 2017 Share Posted August 10, 2017 46 minutes ago, Guidof said: @Superdad Have you had a chance to try your LUSH cable? Any impressions? Positioning? Best regards, Guido F. Hi Guido: No I have been too busy with production tasks--and with tilting at windmills over various mis-measurements and attacks... Hoping to give a listen to it this weekend. Best, --Alex elcorso 1 UpTone Audio LLC Link to comment
Popular Post elcorso Posted August 11, 2017 Popular Post Share Posted August 11, 2017 5 hours ago, Superdad said: Hi Guido: No I have been too busy with production tasks--and with tilting at windmills over various mis-measurements and attacks... Hoping to give a listen to it this weekend. Best, --Alex Mis-measurements? Malicious, I would say, of people who hide in science disguised as objectivism, trying to create a good image with inadequate measurements made by third parties. You and John, with PeterSt and Miska, continue with your good work please and forget about those poor, inflated egos, of whom have never created anything. The love to listen to the music well reproduced will continue in us, the others please take refuge forever in other pseudo technical forums and leave us calm here in Computer Audiophile! Roch Albrecht, lmitche, One and a half and 8 others 8 2 1 Link to comment
jamesg11 Posted August 11, 2017 Share Posted August 11, 2017 That'd then be 'mal-measurements' ... macmini M1>ethernet / elgar iso tran(2.5kVa, .0005pfd)>consonance pw-3 boards>ghent ethernet(et linkway cat8 jssg360)>etherRegen(js-2)>ghent ethernet(et linkway cat8 jssg360) >ultraRendu (clones lpsu>lps1.2)>curious regen link>rme adi-2 dac(js-2)>cawsey cables>naquadria sp2 passive pre> 1.naquadria lucien mkII.5 power>elac fs249be + elac 4pi plus.2> 2.perreaux9000b(mods)>2x naquadria 12” passive subs. Link to comment
johndoe21ro Posted August 16, 2017 Share Posted August 16, 2017 Alex, what about that LUSH cable? Triangle Magellan Concerto 2 < AQ Everest < Vitus Audio SS-010 Mk2 < AQ Dragon High Current < AQ WEL XLR < Chord Qutest DAC w UpTone JS-2 & AQ Dragon Source < AQ Diamond USB < Innuos Phoenix USB w AQ Dragon Source < Aurender N100H & AQ Dragon Source < NetGear GS105GE Switch w UpTone LPS1.2 < Supra CAT8 Ethernet < Gryphon PowerZone w AQ NRG-Wild < Stillpoints UltraSS, Ansuz Darkz D-TC & D2, Omicron Harmonic Stabilizer, Gold Evolution SE & Classic < Furutech FT-SWS (R) < Synergistic Research Orange Quantum Fuse < Solid Tech Hybrid < GigaWatt G-16A 2P Circuit Breaker Link to comment
Superdad Posted August 16, 2017 Share Posted August 16, 2017 2 hours ago, johndoe21ro said: Alex, what about that LUSH cable? It is interesting. Still getting used to it. Quite different from the 1m Curious Cable that I have been using for close to 2 years. The Lush definitely needs more time. But mainly I need more time to play around and listen. Just too darn busy right now! Have to flash, test, build, kit, and ship over 150 ISO REGENs and ISO REGEN/UltraCap LPS-1 bundles next week. johndoe21ro 1 UpTone Audio LLC Link to comment
Popular Post kennyb123 Posted August 16, 2017 Popular Post Share Posted August 16, 2017 10 hours ago, Superdad said: The Lush definitely needs more time. I've had ones and zeros flowing through mine since Friday. Last night it seemed there had been improvements in the upper frequencies. I really liked what I heard. At some point next week, I'll swap the Lush for a USPCB. I'm eager to hear this. johndoe21ro and Doak 2 Digital: Sonore opticalModule > Uptone EtherRegen > Shunyata Sigma Ethernet > Antipodes K30 > Shunyata Omega USB > Gustard X26pro DAC < Mutec REF10 SE120 Amp & Speakers: Spectral DMA-150mk2 > Aerial 10T Foundation: Stillpoints Ultra, Shunyata Denali v1 and Typhon x1 power conditioners, Shunyata Delta v2 and QSA Lanedri Gamma Revelation and Infinity power cords, QSA Lanedri Gamma Revelation XLR interconnect, Shunyata Sigma Ethernet, MIT Matrix HD 60 speaker cables, GIK bass traps, ASC Isothermal tube traps, Stillpoints Aperture panels, Quadraspire SVT rack, PGGB 256 Link to comment
Le Concombre Masqué Posted August 16, 2017 Share Posted August 16, 2017 11 hours ago, Superdad said: It is interesting. Still getting used to it. Quite different from the 1m Curious Cable that I have been using for close to 2 years. The Lush definitely needs more time. But mainly I need more time to play around and listen. Just too darn busy right now! Have to flash, test, build, kit, and ship over 150 ISO REGENs and ISO REGEN/UltraCap LPS-1 bundles next week. It seems I'm quite a lagger since I can't find an active USB regen thread : my apologies to jump in here : After moving my DAC (turned that a so called audiophile stand could not stand the loud vibes I'm sending nowadays), for whatever reason, the DAC did not play right away. Trouble-checking I was shocked to be better off without the usb regen at DAC end ; however I preferred the SQ with the USB REGEN in, but at computer end. it does not seem to make sense... are we talking tricks of my mind or is it possible though I know the regen should be at DAC side? cable is certified Belkin, green second hand USB Regen unboxed, MeanWall, DAC is TEAC 501. About the DAC : begins to sound right after 3 days of continuous flow. I already noticed that it took about 20 minutes for the TEAC/Regen combo to be good (I use a MBPr that serves other purposes so : plug/unplug...) : only explanation I can think of is that it would be faster/better for the TEAC to adapt to the global connection of the Mac/Regen/cable rather than to the connection of the cable/computer while it had reached equilibrium at its usb entry with the continuously on Regen (needs the 5V) but not fed by signal does it make any sense ? All the best Alex, LCM Link to comment
kennyb123 Posted August 17, 2017 Share Posted August 17, 2017 Relative to the USPCB, there is a very slight smearing of the upper frequencies with the Lush. High hats are crisper and more "right" to my ears with the USPCB. Has anyone else noticed this? And if so, might I expect further burn-in time to help? I have only 5 days on the Lush so far. (For my comparisons, the ISO REGEN was left feeding my DAC via a USPCB. I swapped only what connected my microRendu to the ISO REGEN). johndoe21ro 1 Digital: Sonore opticalModule > Uptone EtherRegen > Shunyata Sigma Ethernet > Antipodes K30 > Shunyata Omega USB > Gustard X26pro DAC < Mutec REF10 SE120 Amp & Speakers: Spectral DMA-150mk2 > Aerial 10T Foundation: Stillpoints Ultra, Shunyata Denali v1 and Typhon x1 power conditioners, Shunyata Delta v2 and QSA Lanedri Gamma Revelation and Infinity power cords, QSA Lanedri Gamma Revelation XLR interconnect, Shunyata Sigma Ethernet, MIT Matrix HD 60 speaker cables, GIK bass traps, ASC Isothermal tube traps, Stillpoints Aperture panels, Quadraspire SVT rack, PGGB 256 Link to comment
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