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Computer Audiophile


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About kennyb123

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    Senior Member

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    Kirkland, WA
  1. RMAF 2017 Reader Reports

    I'm leaning towards buying a pair of those speakers. I was hugely impressed with the bang for the buck.
  2. It was great getting to meet everyone!! I just wish I would have had more time to spend with you guys. RMAF was a lot of fun. I'm already looking forward to going next year.
  3. RMAF 2017 Reader Reports

    The $5000 ELAC speakers punched way above their weight. Apparently the total cost of gear in this room (excluding cables, etc) was around $10,000 and yet the sound was better than in many far more expensive rooms
  4. There is an abundance of vinyl that’s not been through the digital machine of course. I generally avoid vinyl that’s from a digital source and I’m still left with way too much to want to buy. I recently sat down to listen to my MoFi “one step” pressing of Bill Evans Trio “..Village Vanguard...”. Mind blowing how great this sounds - made my digital versions sound flawed.
  5. RMAF 2017 - Who's Going?

    Thanks for mentioning that. I will want to attend.
  6. RMAF 2017 - Who's Going?

    Me! I'll be arriving by noon on Friday - and staying through Sunday morning. I'd love to meet up.
  7. That's never been an issue here - and I've been running the bridged connection since just after it was suggested in this thread. I do have a reservation configured in my router for the microRendu so it always picks up the same IP address.
  8. What you are saying makes a lot of sense. Thanks again for taking the time to share your thoughts. You are certainly correct about offering caution about "isolated". Total is never the case in this hobby. I will admit though that there are limits to how much I'll want to obsess about some things in this hobby. That the Hugo TT freed me from having to obsess about how I was powering it seemed like a nice additional benefit. Isolation may not be perfect, but the noise floor is far lower than I imagined possible. I could stop right here and remain delighted. (But of course I won't. Not yet, but I'm getting closer.)
  9. I have two dedicated circuits. The amp is alone on one, the Denali is on the other. The Denali has three zones - the preamp has one to itself while the phono stage has another to itself. The third zone is shared by three devices: 1) the JS-2 powering my Mac mini, 2) the SMPS that charges the LPS-1 and 3) the SMPS that charges the batteries and ultracapacitors in my Chord Hugo TT. The TT is thus fully isolated from AC. As far as my amp and preamp, the Denali has component-to-component filters that reduce noise between components by >60db (from 500 kHz – 10 MHz) and >24db (from 100 kHz – 30 MHz). But I guess I could move the JS-2 to the non-dedicated circuit in that room as there'd be an even greater reduction, though the JS-2 might be getting dirtier power if I do that. I'll have to add that to my list of experiments.
  10. I'm guessing that the inverse square law applies to a computer such that emitted noise will drop proportionally to the square of distance the from it. If I understand that law correctly, I might not need to banish the Mac mini from my listening room to gain some benefit.
  11. Did you actually hear a benefit from moving your Mac Mini? I wonder about the tradeoff of a running a long run of ethernet to your microRendu. I'm using a bridged configuration presently, where I keep the leg to the microRendu short. The other leg goes back to my wall outlet, which then depends a long run of Cat5e installed in the walls to get to my NAS, which is stored in the closet where all the network connections terminate. I'm using a better ethernet cable for that short run (WW Startlight) and there was definitely an advantage using that there. The longer run to the wall also benefitted by a better-than-generic ethernet cable (WW Chroma). Also, like you I found great benefit from going all in with Shunyata power products. I have a Denali plus a mix of Alpha power cords.
  12. I tried this at one point using a cheap Y-cable sourced from Amazon to power both an IR and mR. I found a strong preference for powering both devices from separate supplies (with the LPS-1 preferred on the IR). Cheap enough to try though.
  13. Great points. My primary aim was to determine whether it made sense for me to keep the ISO REGEN in place after the microRendu 1.4 as that's what I was asked to comment on a few times. What I kept consistent was the power supply powering the device directly feeding the DAC - it remained the LPS-1. Obviously the applicability of my findings will be limited to those who might want to follow in my footsteps. I thought it was worth reporting them with that in mind, and was careful to point out how both devices were powered when I made my comparison. I think my findings are more interesting (at least to me) in light of what you smartly pointed out about the downside of powering the mR from the second rail of the JS-2. That I hobbled the mR with noise from the Mac mini and yet still preferred it when using the IR speaks well to the IR's contribution, I think. Interesting point about getting the Mac Mini much further away too. I'll experiment with that. Thanks!
  14. It was hot and humid in my listening room tonight, but i figured that since I was already sweating I might as well get off my butt and do a couple of comparisons. i compared with and without the ISO REGEN. When without the IR, the mR was powered by the LPS-1, When with the IR, the LPS-1 powered the IR and the 2nd rail of the JS-2 powered the mR. i favored the sound with the IR in place, Without it, the sound flattened out both in terms of depth and width - with images less holographic. The sound also became slightly grainier. Additionally dynamics lost some of their "pop". I recall the IR improving things more with the 1.3 board such that the IR was easily a no-brainer purchase, i think it might still rise to that level for me at least as I found the music a bit less compelling without the IR, but I would have to spend more time without it another day under cooler temperatures to confirm for sure. I imagine that the ISO REGEN might bring the microRendu 1.4 a bit closer to the ultraRendu - though jumping directly from the 1.3 to the ultraRendu is likely the better step for those who don't already have an ISO REGEN.
  15. I agree with your thinking. Having said that, I'd be very surprised to find that the ISO REGEN is adding noise or veiling. The clarity is mind-blowing at present. I'll experiment this weekend as temperatures will be cooling off. The listening room has been way too hot to piddle with such things.