jtwrace Posted August 24, 2018 Share Posted August 24, 2018 16 hours ago, johndoe21ro said: Is there a PS Audio Directstream and ISORegen user around here? If you head over to the PSA Forum you will read Paul's and others experience with the DS. As a DS owner, it's not needed. W10 NUC i7 (Gen 10) > Roon (Audiolense FIR) > Motu UltraLite mk5 > (4) Hypex NCore NC502MP > JBL M2 Master Reference +4 subs Watch my Podcast https://www.youtube.com/channel/UCXMw_bZWBMtRWNJQfTJ38kA/videos Link to comment
Superdad Posted August 24, 2018 Author Share Posted August 24, 2018 31 minutes ago, jtwrace said: If you head over to the PSA Forum you will read Paul's and others experience with the DS. As a DS owner, it's not needed. I think you are a bit of an outlier Jason. Yes, definitely check out the PSA forum. However, for some reason virtually all the REGEN-related posts there are with regards to the original USB REGEN—which Paul McGowan himself endorsed in his blog in 2016. Seems that only a couple of active PSA forum members have upgraded to the ISO REGEN, yet in fact there are a great many DS users enjoying the combo. Our products are sold with a 30-day, money-back guarantee (with no restock fee), so there is no risk in trying it. johndoe21ro 1 UpTone Audio LLC Link to comment
jtwrace Posted August 24, 2018 Share Posted August 24, 2018 4 minutes ago, Superdad said: I think you are a bit of an outlier Jason. Yes, definitely check out the PSA forum. However, for some reason virtually all the REGEN-related posts there are with regards to the original USB REGEN—which Paul McGowan himself endorsed in his blog in 2016. Seems that only a couple of active PSA forum members have upgraded to the ISO REGEN, yet in fact there are a great many DS users enjoying the combo. Our products are sold with a 30-day, money-back guarantee (with no restock fee), so there is no risk in trying it. Paul & Ted must have done some objective testing then as his recent comments are against them. W10 NUC i7 (Gen 10) > Roon (Audiolense FIR) > Motu UltraLite mk5 > (4) Hypex NCore NC502MP > JBL M2 Master Reference +4 subs Watch my Podcast https://www.youtube.com/channel/UCXMw_bZWBMtRWNJQfTJ38kA/videos Link to comment
Superdad Posted August 24, 2018 Author Share Posted August 24, 2018 14 minutes ago, jtwrace said: Paul & Ted must have done some objective testing then as his recent comments are against them. No, I think they must have based their comments on theory and not actual testing since, AFAIK neither of them has ever tried the ISO REGEN. I can’t seem to find any recent comments from either of them with regards the REGEN. How about you sent me some links in a PM? johndoe21ro 1 UpTone Audio LLC Link to comment
coeuslee Posted September 7, 2018 Share Posted September 7, 2018 So gents, first off, I apologise if this issue has been discussed. This thread is now 38 pages and I have trouble sifting through to get the answers. Basically, I received my ISO Regen a couple months back. Plugged it in, not realising the GI was in the disable position. Been using it lightly since I was just also assigned on a major project at work. At that time, I noted that the USB connection will disconnect after an hour or so of playing music and sometime, not connecting at all. I had not time to investigate until last week. First I took the LPS1.2 out of the equation and power direct via JS2. Same thing, disconnected after an hour. Then I realised the GI was switched off. Switching it on, I notice clicks and pops during passage of the music. I could be wrong, but I doubt it is a grounding issue. My equipment as below : Preamp : Accupahse C2850 DAC : DC37 Server : DIY server powered by JS2 All power cords are Ansuz US plugs connected to Accuphase power regenerator Power amp : Accuphase A45 Power regenerator and power amp connected to Ansuz powerboard. Any help will be much appreciated as I am on the verge of giving up soon. Link to comment
Superdad Posted September 7, 2018 Author Share Posted September 7, 2018 8 hours ago, coeuslee said: So gents, first off, I apologise if this issue has been discussed. This thread is now 38 pages and I have trouble sifting through to get the answers. Basically, I received my ISO Regen a couple months back. Plugged it in, not realising the GI was in the disable position. Been using it lightly since I was just also assigned on a major project at work. At that time, I noted that the USB connection will disconnect after an hour or so of playing music and sometime, not connecting at all. I had not time to investigate until last week. First I took the LPS1.2 out of the equation and power direct via JS2. Same thing, disconnected after an hour. Then I realised the GI was switched off. Switching it on, I notice clicks and pops during passage of the music. I could be wrong, but I doubt it is a grounding issue. My equipment as below : Preamp : Accupahse C2850 DAC : DC37 Server : DIY server powered by JS2 All power cords are Ansuz US plugs connected to Accuphase power regenerator Power amp : Accuphase A45 Power regenerator and power amp connected to Ansuz powerboard. Any help will be much appreciated as I am on the verge of giving up soon. Hi: A couple of thoughts and questions for you, but we can assist you better if you contact us directly. You mention that your ISO REGEN had the switch set with galvanic isolation defeated (the up, "ON" position). The way you said it implied that it came to you that way. But since we NEVER ship them with the switch up--it is always down with GI enabled--I made me wonder if your ISO REGEN is a second-hand unit, which means it is possible that it is very early one. Would be good to know that. What USB cable are you using between your music server and the ISO REGEN? The Silanna galvanic isolator chip at the input of the ISO REGEN is not very tolerant of out-of-spec USB cables on its input side (the ISO REGEN output can drive any cable), and a fair number of "audiophile" USB cables fall into that category. You can test that by trying the 6-inch generic cable we ship with the ISO REGEN or some other generic USB printer cable--from the computer to the ISO REGEN. The JS-2 "floats" its DC outputs (no connection to mains ground except for chassis and transformer for safety), so with it powering your DIY server your source does not have much in the way of true ground connection (except perhaps though other devices you have hooked to the server). In some cases the ISO REGEN really prefers to have the USB input side well grounded (again the not-effect Silanna isolator chip), so you might want to read this post: https://www.computeraudiophile.com/forums/topic/31877-iso-regen-listening-impressions-kicked-off-with-some-measurements/?page=24&tab=comments#comment-714912 Based on what you reported, I would certainly start with changing the USB cable between your server and the ISO REGEN. Have a great weekend, --Alex C. P.S. My apologies. I just noticed that one of the e-mails awaiting my reply was from you from yesterday. We can pick up the troubleshooting off-line there. UpTone Audio LLC Link to comment
darkless Posted September 7, 2018 Share Posted September 7, 2018 Another thing to try would be to connect whatever is directly downstream to your ISO REGEN (the DC37?) directly to a grounded outlet. Going through a power conditioner could adversely affect the grounding. It may sound strange, but that's exactly what happened in my case. My ISO REGEN was feeding my Chord DAVE which happened to be connected to ground through a Supra mains block using one of the filtered sockets. When I switched to an unfiltered socket on the same mains block the problem disappeared. Somehow the more direct connection to ground solved the issue. Link to comment
coeuslee Posted September 8, 2018 Share Posted September 8, 2018 First of all, I must admit a couple of elementary mistakes here.... embarassing facts actually.... As Alex pointed out, the unit did come with the GI switched at down on at "I" position. I had assumed the "on" position means GI is on. Secondly, while fiddling yesterday, I noticed that the "red light" at the back was not lighted when I lose connection, which suggested to me there is some power issue. I suspect that the Oyaide plugs does not connect well on the Regen power input due to the weight of the plug (by the way, should it be a 2.1mm or 2.5mm input plug?). I have since added extra Silicon rings to support the connection. So far no drop outs this morning (fingers crossed). I will report back after the next few days to confirm this finding. Also to clarify, the ticks happened when the GI switched off. With the GI on, music flows beautiful. I understand that my DAC has GI on the USB input side, but even this, I found some improvement with the Regen. Volume seemed abit attenuated but I am also hearing better separation and imaging. Once again, apologies for raising the alarm bell and for the embarrassing nature of the user error. Really appreciate this community support. PS : I use Acoustic Revive USB cable. Link to comment
Superdad Posted September 8, 2018 Author Share Posted September 8, 2018 10 minutes ago, coeuslee said: First of all, I must admit a couple of elementary mistakes here.... embarassing facts actually.... As Alex pointed out, the unit did come with the GI switched at down on at "I" position. I had assumed the "on" position means GI is on. Secondly, while fiddling yesterday, I noticed that the "red light" at the back was not lighted when I lose connection, which suggested to me there is some power issue. I suspect that the Oyaide plugs does not connect well on the Regen power input due to the weight of the plug (by the way, should it be a 2.1mm or 2.5mm input plug?). I have since added extra Silicon rings to support the connection. So far no drop outs this morning (fingers crossed). Wow, thanks for your report about it. Very interesting. The DC jack of the ISO REGEN (and the UltraCap LPS-1.2) is 5.5mm x 2.1mm. 10 minutes ago, coeuslee said: Also to clarify, the ticks happened when the GI switched off. Well that's slightly odd, yet it clearly indicates that the GI is helpful and that the ticks are not due to the ISO REGEN or some grounding issue. 10 minutes ago, coeuslee said: With the GI on, music flows beautiful. I understand that my DAC has GI on the USB input side, but even this, I found some improvement with the Regen. Volume seemed abit attenuated but I am also hearing better separation and imaging. Nice to hear--and not surprising. Enjoy! 10 minutes ago, coeuslee said: Once again, apologies for raising the alarm bell and for the embarrassing nature of the user error. Really appreciate this community support. Of course!! 10 minutes ago, coeuslee said: PS : I use Acoustic Revive USB cable. I have heard very nice things about that cable. Best, --Alex C. UpTone Audio LLC Link to comment
Popular Post wouterk Posted October 14, 2018 Popular Post Share Posted October 14, 2018 Very happy after upgrading from the standard Regen (green) to ISO Regen. Looking at my audio setup this was the most logical step forwards and a worthwhile one as explained elsewhere and fortunately confirmed in my setup: Mac Mini i7 with Roon, macOS Mojave, Singxer provided USB cable, ISO Regen, Singxer SU1, Holo Audio Spring - Jensen Caps, ATC pre, ATC 50 anniversary speakers. I have never enjoyed my system more - mainly listening to classical music from CD rips to new releases in high resolution formats. My system provides a relaxed, natural, detailed sound stage which is highly enjoyable even when visiting concerts both as a musician and audience on a regular basis. Bdht and Superdad 1 1 Link to comment
Popular Post rickca Posted November 24, 2018 Popular Post Share Posted November 24, 2018 I had the ISO REGEN/LPS-1.2 out of my system for a little while. I put it back in today and fell in love with it all over again. Superdad and Doak 1 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
pl_svn Posted November 26, 2018 Share Posted November 26, 2018 Alex... don't remember what colour ISO Regen's LED is supposed to be when working fine: red? (it's always been hidden behind something so... ) thanks Qnap HS-264 NAS (powered by an HD-Plex 100w LPS) > Cirrus7 Nimbini v2.5 Media Edition i7-8559U/32/512 running Roon ROCK (powered by a Keces P8 LPS) > Lumin U2 > Metrum Acoustics Adagio NOS digital preamplifier > First Watt SIT 3 power amplifier (or Don Garber Fi "Y" 6922 tube preamplifier + Don Garber Fi "X" 2A3 SET power amplifier, both powered from an Alpha-Core BP-30 Isolated Symmetrical Power Transformer) > Klipsch Cornwall III headphones system: Cirrus 7 > Lumin U2 > Metrum Acoustics Adagio > Pathos Aurium amplifier (powered by an UpTone Audio JS-2 LPS) > Focal Clear headphones Link to comment
Superdad Posted November 26, 2018 Author Share Posted November 26, 2018 5 minutes ago, pl_svn said: Alex... don't remember what colour ISO Regen's LED is supposed to be when working fine: red? Hi Paulo: Yes, the ISO REGEN's LED is always red. Unlike with the UltraCap power supplies, the LED on our REGENs does not change color. USB REGEN LED is amber/orange, ISO REGEN is red. Don't ask why we did it this way. I know it is confusing for people who have an UltraCap supply as for those red is the "bad", no output color. pl_svn 1 UpTone Audio LLC Link to comment
pl_svn Posted November 26, 2018 Share Posted November 26, 2018 yup: green for first batch Regens, then amber then... red ? ? thank you just got a new DAC (in signature ) and wondering why no USB signal: guess it's because of the non 5v bus cable *after* the ISO ? Qnap HS-264 NAS (powered by an HD-Plex 100w LPS) > Cirrus7 Nimbini v2.5 Media Edition i7-8559U/32/512 running Roon ROCK (powered by a Keces P8 LPS) > Lumin U2 > Metrum Acoustics Adagio NOS digital preamplifier > First Watt SIT 3 power amplifier (or Don Garber Fi "Y" 6922 tube preamplifier + Don Garber Fi "X" 2A3 SET power amplifier, both powered from an Alpha-Core BP-30 Isolated Symmetrical Power Transformer) > Klipsch Cornwall III headphones system: Cirrus 7 > Lumin U2 > Metrum Acoustics Adagio > Pathos Aurium amplifier (powered by an UpTone Audio JS-2 LPS) > Focal Clear headphones Link to comment
rickca Posted November 26, 2018 Share Posted November 26, 2018 24 minutes ago, Superdad said: I know it is confusing for people who have an UltraCap supply as for those red is the "bad" Yes we (that's a royal we) are easily confused. And not amused. 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
Ralf11 Posted November 26, 2018 Share Posted November 26, 2018 On 8/5/2017 at 4:08 PM, Always.Learning said: Good point, Rajiv, about the benefits of listening/evaluating after removing a component. Sometimes I think the best A/B comparison, assuming A has been in your system and you have become familiar with it, is to stick B in and let it sit there for days, weeks, even months (if you can be that patient) -- i.e., lots of listening sessions. Just let it marinate. Then go back to A and you can get a pretty good idea about both A and B at that point in not much time at all. Jon I like this idea as it resolves 'training effects' A combination of extended listening and quick switching (if feasible) is always a good idea. Link to comment
asdf1000 Posted December 13, 2018 Share Posted December 13, 2018 Hi @JohnSwenson Are the data lines always isolated, regardless of whether ground isolation is on/off? Or are the data lines only isolated when ground is also isolated? Cheers! Link to comment
JohnSwenson Posted December 13, 2018 Share Posted December 13, 2018 Depends on what you mean by "isolation". The Ethernet connection just has data lines, there is no "ground" (unless you are using shielded cable with a metal plug that connects to ground). The issue is leakage flowing through the data lines. For the 4 copper jacks on the "dirty side", there are normal transformers on each port. These provide galvanic isolation between each port, and low impedance leakage isolation. They do not provide high impedance leakage isolation. That is where the "grounding' comes in. The ground connection shunts the high impedance leakage to the safety ground (assuming it is properly connected), bypassing the switch. Remember the SMPS that UpTone provides is already grounded. If you use a non-grounded PS, and don't ground the switch, high impedance leakage going into one of the dirty ports will be coupled to all of them. The "clean" port will always isolate leakage current (both types) from any of the "dirty" ports. John S. asdf1000 1 Link to comment
Superdad Posted December 13, 2018 Author Share Posted December 13, 2018 2 minutes ago, JohnSwenson said: Depends on what you mean by "isolation". The Ethernet connection... Great answer John, but I think Sean's question was with regards to the red switch on the ISO REGEN--as this is the ISO REGEN thread. Guess someone has EtherREGEN on the brain 24/7, eh? (That's a good thing!) Maybe you can answer the same question with regards the Silanna isolator at the input of the ISO REGEN and what effect defeating the ground plane isolation with the switch has on the D+/D- lines going through it. asdf1000 1 UpTone Audio LLC Link to comment
Leeuwarden Posted December 24, 2018 Share Posted December 24, 2018 Anyone using the ISO regen between Aries Femto and Brooklyn DAC ( + )? Link to comment
Chiler54 Posted January 2, 2019 Share Posted January 2, 2019 Are there any Chord Dac owners who use an Iso Regen? What are the experiences? Link to comment
Superdad Posted January 3, 2019 Author Share Posted January 3, 2019 2 hours ago, Chiler54 said: Are there any Chord Dac owners who use an Iso Regen? What are the experiences? Sure, from elsewhere in this very thread: With Chord TT: https://audiophilestyle.com/forums/topic/31877-iso-regen-listening-impressions-kicked-off-with-some-measurements/?do=findComment&comment=738270 With DAVE: (There are actually quite a few Dave owners using ISO REGEN. I know there are a bunch of Qutest users too, but I'm not seeing posts in this thread. Have to search our e-mail testimonial box.) UpTone Audio LLC Link to comment
Middy Posted January 3, 2019 Share Posted January 3, 2019 +1 Iso regen improves the SQ with my Qutest. A solid DAC at the moment just running off the Switching supply. Powering the Iso regen is my LPS1. Alex and John are cornering the input market with thier leading products. My Qutest sounds simply better with them both cleaning up the signal. Never an issue with recommendations. I hope this helps @Chiler54 Just a nice company.. Superdad 1 Link to comment
Chiler54 Posted January 4, 2019 Share Posted January 4, 2019 I also have a Qutest and will think about the IR ...... Thank you! Link to comment
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