Mating power cords with APL 3910


While waiting for my (Denon) APL 3910 to arrive, I need some help in coming up with a short list of power cords to audition with it. In addition to listing the PCs you liked best with this unit, it would be most helpful if you could provide some specificity. In particular, what sonic and musical virtues are the offspring when the particular PC is mated with the APL 3910? Sonically speaking, which PCs didn't do as well with it? Are there any PCs that mate well (or don't mate well) with digital sources in general?
puremusic
The likely reason you note greater "ease" when plugging components into the H8's analog outlets is that there is additional filtering on those outlets and some components may respond more favorably to this. Caelin felt that placing the additional filtration tin the analog section would better isolate that bank from the digital section.

None of the Hydras are in any way current limiting, however the Hydra 2 may in some instances be preferred with high-current products because it does not incorporate a Carling Breaker, which means one less contact point for the AC signal to traverse.

Sean, you are certainly entitled to your opinion and I do enjoy reading most of your informed posts. You have however, made a number of statements related to construction costs, voltage sag, wiring and "design compromises" that are off the mark. I know our pricing model intimately and it is roughly a 5-1 ratio for *all* products. If a part costs a penny, we charge a nickel --and that's considered an antiquated pricing model by todays standards. Every part in the Hydras, from the wiring on to the plated buss systems are custom designed, and then either manufactured by or exclusively for us- even the wiring- excepting the thermally insulated MOV's which are commercially available. You may view some of the parts as over-rated or over-engineered and that is your right, but they are extremely costly to produce--forgetting even the cost or research and design. Our dealer margin is the same as that of speaker and electronics manufacturers. We cannot afford "special price incentives", sales person spiffs or 70%+ overseas margins. This often puts us at a serious disadvantage when competing with "specialty" cable and power companies that offer a great many "breaks" and incentives to dealers.

All Shunyata designs focus on using hand applied, custom made parts and proprietary terminations that reduce contact impedances and present no-limit to the instantaneous current demands of electronics. This is where a lot of money gets spent rather than on isolation transformers, chokes, coils or other reactive devices. Using conventionalyl available power-line caps, a choke, coil or iso-trannies were all considered and rejected because of issues related to reactance, non-linear current flow (such as thermal breakers) and restricted instantaneous current delivery.

If you decide to manufacture your own products and attempt to set up a network of specialty parts vendors, a US based factory, in-house cryogenic facilities and enough staff to run a company, you will likely learn that our retail prices are very reasonable.

Regarding the technical, buss core and wiring issues raised, I'm afraid Caelin would be best equipped to answer those questions, but he long ago gave up trying to answer critical points on the internet. Too often they are loaded with baiting for 'ether-sport' or an agenda, not simple fact finding--he simply does not have the time or inclination. We do not hide any design or construction elements, and anyone that cares to look can decide for themselves whether these make sense to them.

With regards to other comments people made about "marketing fluff and hype", we do very little of either. Forget the reviews, there are many accredited engineers, electronics manufacturers and professionals who understand perfectly what we do and are willing to speak for us. Most of our business is referred from manufacturers and professionals that use the Hydras.

My interests in responding are only related to reading so much opinion--some of it poorly informed, presented in a somewhat pointed way, when much of it runs contrary to what I know to be the truth.

We run an honest business staffed by good people. The products all use solid engineering principles and are purposefully uncomplicated--at a casual glance. Opinions about what might be a better performer or more economical are fine. When serious questions are raised about the integrity of the products or the people that make them however, I feel the need to at least weigh-in.

Regards,

Grant
Shunyata Research
Samuel,
Thank you for clarifying the issue about the analog outlets in Hydra 8, and for providing the information about the Hydra 2. Both explanations are relevant to my decision making.

As you can see from my posts above, the Hydras are my front runners for power line conditioning. Which Hydra, and how many, hopefully, will be determined after some additional clarifications.

Besides the additional filtering on the analog outlets in Hydra 8, are there other differences in the filtering process in the four Hydras? The specifications on Shunyata's website product page list a 4, 7, 10, and 16 element Venom Noise Filters in Hydra 2, 4, 6, and 8, respectively. Do the differences in the number of elements determine differences in the quality of filtration, the type of filtration, or both? These are relevant questions for making an intelligent choice. Specifically, which Hydra would be most appropriate for just the CD player alone? Or, more realistically, what are the sonic trade-offs for a CD player with each of the four Hydras?

As for the amps, I have two mono Jadis JA80 tube amps driving the Wilson Audio Watt/Puppies and one Krell amp driving the Wilson Audio WHOW subwoofer. Since I have 3 dedicated 20 amp AC lines, it will be possible for me to isolate the high current components from the low-current ones, and possibly isolate the right channel from the left one. In view of your information about Hydra 2, it appears that using Hydra 2s on my three amps would be optimal.

I would like to be as close to optimal as possible, but I'm also motivated to be as economic as possible. The bottom line question is: Based on the experience of people within your company, and the feedback from your dealers and clients, what is the sonic cost if I just plug all four components into a Hydra 8 instead of using some combination of the Hydras?

Thank you in advance for your consideration of my questions.
John
Tvad,
Samuel's information about the Hydra 2 are relevant to Perry's observations. Also, his explanation about the additional filtration in the analog outlets in Hydra 8, reinforces the positive comments I read and heard about the Hydra 8. I'm hoping his answers to my questions about the differences in the Venom Filters will be as clear and as helpful.
John
Not to belabor things here, but just to complete my thoughts for those reading this thread, I found that using a 20-amp Shunyata Anaconda Alpha from the wall (plain old 15 amp non-dedicated line) to the Hydra 8, and another Anaconda Alpha from the Hydra to the amp (Edge NL12) works really well. The bass (especially the problematic upper bass) is much more open & transparent, with no ear-pounding pressure, even with my rear-ported speakers too close to the wall. Grain was removed from the rest of the spectrum, too, but detail & 3D-ness remains. There is just that sense of all-is-well that lets you breathe & listen. I tried other cords in this loop (TG SLVR, Kimber PK10 Palladium), with & w/o the Hydra, & found the above setup to be the best by far.
Thanks for the response Grant. Having said what you did though, you never provided any type of rebuttal pertaining to the facts that the outlets are all wired in daisy-chain fashion with the resultant potential for heavy current draw to modulate the AC voltage & current available to other devices or that there isn't the potential for crosstalk / cross-contamination from outlet to outlet.

Parallel filters are just that i.e. parallel to the existing path. That doesn't mean that these filters absolutely will absorb all of the incoming or outgoing noise, just that there is a parallel path to the filter for the noise to take outside of heading into the next component or back into the main AC feed.

Having said that, I would be curious as to what level of "isolation" is provided from one outlet to the other outlet within the duplex and how much isolation there is from one duplex to the next. Obviously, this would be somewhat frequency dependent, but if Shunyata has conducted the exhaustive type of R&D that you claim that they have in designing this series of products, all of this data should be readily available. For that matter, the amount of voltage / current that can be pulled from one outlet without creating sag in any other outlet within a Hydra should also be a matter of recorded data that i and many others would be interested in. I say that because others have questioned the use of a Hydra for both their amplifier(s) and line level components simultaneously.

As far as having an agenda, i'm not involved in the audio industry in any way, shape or form. I'm simply sharing my own technical observations and analysis based on the descriptive information as provided by your website and other sources that supposedly received their information directly from Shunyata. Feel free to confirm or deny any of it at your leisure, but please be at least somewhat specific in your response. Saying that something doesn't happen or isn't possible when logic dictates that such things do occur and / or are possible isn't much of a reply from a company that makes high profile, high cost products of a technical nature. Sean
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