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Quad Khorns

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  1. Buy the pair and put them both in the center. Easier to find and sell a pair
  2. Quad Khorns

    IT'S ALIVE

    Dang, I only thought I got banned from another audio forum
  3. I still buy physical media - when the only digital source is mp3 and I want the entire album. I promptly upload it in a lossless format to get as good a digitized copy as I can. Otherwise, I purchase lossless online.
  4. If you purchase digital media (lossy or lossless) it is yours. You download into your storage, whether local or cloud or both. And if you must have physical media, burn your own CD's (as long as burners, discs, and CD players are still available). Vinyl almost died but somehow made a small comeback. How many can still play 8 tracks and cassettes? That's why all my physical media now exists in solid state drives too.
  5. Occasionally it's just fun to fiddle with physical media. I still like my CD player It's like driving a manual vs auto transmission car
  6. Slightly old school because this type of architecture has been around 15-20 years (sans network players). Also uploading music from discs is a big time commitment; a faster way is to buy a service that will recognize your owned music and upload a pristine copy from their library, lossless and hopefully error free. My library, capacity of about 7200 CD's, with triple redundant backup, and anything is accessible within 15 seconds, is a box that can fit in a shoebox
  7. Slightly old school, but I just finished uploading all my physical media (over 1000 discs) to two NAS in two different locations. I have multiple network audio players (7) that can stream from the NAS's (or any local net source), or any internet-based source to my various sound systems. I have the two NAS's sync'd to one another and only need to upload new music to one. It took quite abit of time and effort to set up but am very pleased with the results and functionality. It all works really well. I now find little need for any other way to listen to music and have greatly simplified my systems.
  8. Ok, this is what I get in trying to educate ...a wasted afternoon responding to nonsense. This reminds me why I didn't go into teaching. So why don't you explain what measuring the voltage difference between the neutral at the load, and the ground at the panel through 50 ft of Romex 14 carrying 15 amps has to do with generating a ground loop? That will be interesting ... Let me save you time - it has NOTHING to do creating a ground loop and that has nothing to do with the noise and ground loop discussion. Let me educate you more - That zero potential must be measured at the neutral and ground AT THE SAME POINT WHERE THE DEVICE CONNECTS TO THE POWER not the voltage difference of the neutral at the device and the ground 50 ft away! What are you thinking? With the neutral and ground bonded together at the panel, the voltage difference will be zero between the two at the same point equal distances from the bond point. Let me guess your next response - "but the voltage difference at the same point will still be different by 0.001 volt... See I'm right" Yea sport you are right... I know I know, you have to find some way to save face...so knock yourself out, but I I have better things to do. Oh BTW why don't you post your vast education and experience credentials that generate such great electrical engineering wisdom. Otherwise have a great day!
  9. I'm sure by now the OP has long nodded off and tuned out of this discussion. But back to the OP's original question of the power conditioner being worth it, I read a little about the Furman units on their website. They do not provide any technical details on what exactly their system is and does, and that in itself is telling. The most I can glean from their information is that these units provide some level of filtering and perhaps voltage regulation. They are concerned about RFI and EMI but how do they correct for it? No explanation. They offer units that do power factor correction, which is a power delivery efficiency issue, not an audio quality issue (fewer amps are needed to drive the load with power factor correction). I could get into another long technical discussion, but I'll try to avoid it. In a few words this sort of "power conditioning" is not worth the price tag and will not correct many of the real-world problems present in home power systems. Period. If you want RFI and EMI protection, install twisted pair power wires in metal clad shielding or conduit is the accepted method. And keep the wires away from motors, transformers, and strong magnets. The filtering is almost certainly filters for high frequency sources (such as digital sources), but ignores the most common noise on power lines which are 60 Hz and lower. These are corrected with isolation and shielding. And you also must not connect digital sources (your CD, DVD, streamer players etc.) on the load side of the power conditioner. As I discussed previously, if you need voltage regulation, you got bigger problems than your audio system. Do you share power with an industrial plant? Another high dollar, snake oil product IMHO. There are more cost and performance effective solutions.
  10. Got it thanks. If I would order that through Amazon, Im sure it would ship from Italy...
  11. As I wrote the potential (voltage)between the ground and neutral must be zero or a current will flow somewhere in the system. For there to be a voltage difference between the two, equipment connected to the conductors also are connected in some way to another ground, and the two grounds are not connected directly together (there is a resistance between the two ground points). This sets up the ground loop. I'll say that we are saying the same thing. If wired correctly, if there is a fault on the load side of an iso transformer, it clears back to iso transformer through the ground wire. The iso is the new separately derived power source and is not the house or utility power source. It is now its own system with its own ground. All grounds need to connect back to the power source - the iso. Connecting the secondary side ground to the primary side ground not only defeats the purpose of the iso transformer, but you are potentially setting up a dangerous condition. Think of the iso transformer as the utility and everything connected on the load side would be analogous to your house electrical system. And as such you need load side circuit breakers to protect wire and equipment against overloads and short circuits. If you are concerned about personnel safety or arcing fires you can also install GFIC's and AFCI's on the load side. But I would be judicious about using these as you could be susceptible to nuisance trips, a real PITA.
  12. At the risk of being nit-picky, maybe. To be nauseatingly accurate, if the PC uses an isolation transformer the input ground (house/utility) must be totally isolated from the output ground (iso transformer). Grounding needs to be at the source of the power, and in the case of an iso transformer, is the iso transformer secondary side (this is a separately derived power source per NFPA 70 (the National Electric Code). The primary side grounds back to the house/utility and the two must be separate for effective noise isolation, and I believe safety. This is also true of double conversion UPS's Not interested in an argument or long technical discussion, but this is the correct situation. Other than noise from digital sources (high frequency pulses switching between 1's and 0's), other noise comes from a voltage difference between the ground and neutral (the infamous ground loop). This voltage must always be zero or noise could result. Just about any source of noise that can occur in audio systems that I can think of is a result of a voltage difference between the two.
  13. Ok thanks. It appears in order to see the ingredients, need to request from manufacturer. Site says its a vegetable oil...
  14. Very nice, thank you! Don't know if that brand is sold in the US and I can't read Italian, but what are the ingredients of this oil? What is straw oil?
  15. This isn't necessarily true, if power conditioners have isolation transformers with Faraday shields. The output of the isolation transformers is completely isolated from the source power, including the grounds. The output is a new source of power derived from your power source and isolated. Same if the power conditioner is a double conversion UPS system Noise can also originate when there is a voltage difference between the ground and neutral wires (they are tied together at your electrical panel so the voltage difference should be zero). Noise can also originate from TV cables that are tied in some way to your audio system, and digital sources within your system (CD's, NAP's, etc.) if they share power with your amplifiers and analog audio equipment. Noise is a complex subject that takes books to explain. Unless you can hear noise on your audio system you don't need any of these. If you have noise, investigate and find the source, then investigate ways to mitigate. If you have voltage swings so great that your system cannot handle it, you have big problems in your house way beyond your audio system, or you have absolute junk equipment. If you are worried about voltage spikes, isolation transformers and SPD's will protect your system. (forget about power strip protection, they are useless).
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