Speed Racer Posted March 16, 2017 Share Posted March 16, 2017 Just click on his name and look at his blog entries. Here is the link: In-iso-Regen’ - a final, for now, USB 'connection’. (plus, wrapping an Intona against RFI) - Blogs - Computer Audiophile Link to comment
Speed Racer Posted March 16, 2017 Share Posted March 16, 2017 Great question that a lot of people would be asking (looking for best bang for buck). But it seems like the ISO REGEN needs either an LPS-1 or a linear power supply (for the leakage currents reasons). Certainly the upgrades can be done in steps though but the ultimate end result is LPS-1 and ISO Regen for sure. Just depends how quickly each person decides to get there, depending on each budget at the time. If I were you (given your current setup) I'd actually start with the LPS-1, replacing the SMPS and when funds allow later add an ISO Regen. Only one opinion though. Certainly no hard and fast rules with this game :-) Except the LPS-1 is energized by an SMPS. Won't this SMPS contaminate the mains? Yes, you will get clean power into and out of the ISO Regen which is very important. But what about the devices getting power form the same AC circuit? My plan is to have everything in the audio system on one AC circuit and everything in the computer system, including the ISO Regen, on another circuit. I don't want the SMPS for the LPS-1 creating issues for the AC feeding the audio equipment. Link to comment
Speed Racer Posted March 16, 2017 Share Posted March 16, 2017 Another great question but there is an entire thread about the energizing plugpack for the LPS-1. The charging bank of ultracaps is completely isolated from the discharging so you can be happy forever using the meanwell SMPS that Alex includes with the LPS-1. Feel free to read that entire thread but I think I just saved you a lot of reading :-) Re-read what I wrote. I am not worried about the SMPS energizing the LPS-1 contaminating the DC power the LPS-1 generates. I have concerns about the SMPS contaminating the AC mains and causing issues for other devices using that AC power. Link to comment
Speed Racer Posted March 16, 2017 Share Posted March 16, 2017 Thanks for the link, Alex! I will still try and keep SMPS units off of the same circuit as my audio equipment. I know the LPS-1 will provide only clean DC power regardless of how it is energized. That's why I bought one!! I am (not so) patiently waiting for you know what! Link to comment
Speed Racer Posted March 24, 2017 Share Posted March 24, 2017 I wanted to power the SU-1 and ISO Regen using a single LPS-1 as well. But, the SU-1, according to Singxer, must receive 5vdc only. Any more and it would be damaged. The SU-1 uses the USB VBUS power so the ISO Regen would need more than 5vdc. So, a single LPS-1 is not going to work. I am not inclined to buy a second LPS-1. So, I am inclined to use a Mean Well SMPS to power the ISO Regen and a Mean Well SMPS to power the LPS-1 powering the SU-1. I decided to hold off buying the SU-1 and to continue to use the Singxer F-1 I have instead. I will use the LPS-1 I have to power the ISO Regen when I get it. Link to comment
Speed Racer Posted April 2, 2017 Share Posted April 2, 2017 2 minutes ago, Em2016 said: Somebody who may have listened to the ISO REGEN hinted that I may need to replace my microRendu at my desktop setup... i.e. they hinted it's that good... I am hoping that hint is true. Getting complete isolation from the PC side of the USB bus AND massive improvements in USB power and signal on the DDC/DAC side of the USB bus would make it an near perfect solution for me. I have also been looking at the Icron ethernet USB extender as a way to completely isolate the computer system from the audio system. But the primary use of the Icron would be extend the USB from my home office to my Library where my 2 channel system will soon be. This would make it so I would not have to move my MacBook Pro between rooms. Link to comment
Speed Racer Posted April 2, 2017 Share Posted April 2, 2017 I have not looked at the microRendu. How does the microRendu work with A+? Or does it replace it? How is the sound quality compare to A+? Link to comment
Speed Racer Posted April 3, 2017 Share Posted April 3, 2017 Thanks, Alex! I am itching to order the ISO Regen and the USPCB!! Link to comment
Speed Racer Posted April 3, 2017 Share Posted April 3, 2017 I am hoping that I can get rid of my Singxer F-1 and plug the ISO Regen straight into my Yggdrasil using the USPCB. I don't see how I could give it a better USB signal. Link to comment
Speed Racer Posted April 3, 2017 Share Posted April 3, 2017 3 minutes ago, R1200CL said: So is actually your present configuration with the F1 better than USB cable direct to your USB DAC (the Yggdrasil) ? I suppose the answer is yes, but I'm wonder what is then the possible logical explanation behind. Anyone? My premise is that the the DDC, the F-1, handles the USB crap (power, ground, clock issues) better than the DAC does. The DDC has a great clock and isolates the DAC from the USB bus/PC nicely. Link to comment
Speed Racer Posted April 10, 2017 Share Posted April 10, 2017 7 minutes ago, JohnSwenson said: There seem to be two aspects of USB interface that affect SQ, signal integrity and leakage loops. A microRendu and LPS-1 block leakage loops, so that aspect of the ISO REGEN will not add improvement, BUT the SI of the ISO REGEN is better than the microRendu. So there is a fairly good probability that if you use separate LPS-1s to power both you will have improved SQ. Other configurations are not so sure. For example you could power the microRendu by some other supply and use the LPS-1 on the ISO REGEN, or use the same LPS-1 for both (using a Y cable on the output of the LPS-1). These MAY provide better SQ or not, it is very hard to tell. Neither Alex nor me have tried all possible combinations and even if we had, there is no guarantee it would behave the same in your system. John S John, Please check your PMs. Thanks! Link to comment
Speed Racer Posted April 10, 2017 Share Posted April 10, 2017 Alex, If I had a microRendu, and ISO Regen, and a Singxer F-1 which draws power from the USB VBUS, could one LPS-1 set to 7 vdc power both the microRendu and ISO Regen? Thanks! R1200CL 1 Link to comment
Speed Racer Posted April 11, 2017 Share Posted April 11, 2017 On 4/9/2017 at 10:16 PM, Superdad said: Well IN the test I did tonight with a single LPS-1 powering both the microRendu and the ISO REGEN, the ISO REGEN was supplying VBUS power to a Singxer SU-1. And while I know the F-1 is slightly different in that it is 100% bus-powered, the USB 2.0 spec does not allow for more that 500mA bus draw and only full on bus-only DAC/headphone amps ever approach near that. So I am rather confident that the combo would work fine for you too. i do encourage everyone to get the handy Drok USB VBUS meter for checking devices: https://www.amazon.com/DROK-Digital-Multimeter-Voltmeter-Capacitance/dp/B00J3JSEG6/ (I like the LED version for $10.47; I use it all the time.) Okay, the Singxer F-1 had the following numbers from the DROK: 5.2 vdc 160 mA 0.83 w Based on that, I would think I could use one LPS-1 to power both the micorRendu and ISO Regen, right? Link to comment
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