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Has anyone ever actually disassembled one of those expensive rear end power conditioning boxes that seem to be all the rage lately?
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May 23, 2014 15:01
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They had one with a Plexiglas top on display so you could see the insides at a Best Buy or something. I was with my brother who is an electrical engineer and he looked at it and said it did nothing.
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May 23, 2014 19:58
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Real power conditioners do exist of course, but they will do absolutely nothing on functioning electrical systems by design.
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May 24, 2014 05:28
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Install Windows posted:Real power conditioners do exist of course, but they will do absolutely nothing on functioning electrical systems by design. Something like this would definitely filter noise out of your electrical system: http://powerquality.eaton.com/Products-services/Power-Conditioning/PowerSuppress100.asp And I could potentially see using something like this if you (for some retarded reason) had an extremely large amplifier without APFC on the same circuit as other PF sensitive electronic equipment: http://www.eaton.com/Eaton/ProductsServices/Electrical/ProductsandServices/PowerQualityandMonitoring/PowerFactorCorrection/LV-AutoVAR300/ That being said, I can't think of a situation where using one of these made any sense for home audio use unless you lived in an area that had terrible power delivery and billed based on apparent power. Edit: Both of these are <$1000 units, and are designed for industrial and enterprise use. Idiots spend 5 figures on power conditioner snake oil. KillHour fucked around with this message at 05:57 on May 24, 2014 |
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May 24, 2014 05:55
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Talking about Eaton, is their stuff worth anything? I'm looking into an UPS of theirs.
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May 24, 2014 17:01
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Waldo P Barnstormer posted:I am going to pay someone to measure the room response in my campervan I can do that for you but isn't it a bit too 'science' for an audiophile thread? 
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May 24, 2014 17:21
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Waldo P Barnstormer posted:I am going to pay someone to measure the room response in my campervan I measured the room response in my jeep.
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May 24, 2014 21:18
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Combat Pretzel posted:Talking about Eaton, is their stuff worth anything? I'm looking into an UPS of theirs. They're as well known as APC or Tripplite. Never used one, but I've heard good things.
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May 24, 2014 22:40
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Anecdotal evidence: a customer of mine had all APC in their offices. Not a bad word to say about them, they worked exactly as they were supposed to.
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May 24, 2014 23:56
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Common/differential noise filters that you build into a circuit cost like $10 in low volume and are just a common mode choke, some inductors, and capacitors between L/N and L+N/PE. http://uk.farnell.com/schurter/5130-0000-21/filter-inlet-iec-16a-250vac-v-lock/dp/2356668 These things are pretty effective too and should be built in to anything susceptible to or that generates noise, or that generates noise, it's less effective than that Eaton thing at EMI frequencies but will kill any RFI. The Eaton device would be a nice device to put near the circuit breaker though. There's probably someone who makes a standard power cable with a filter like that built in (one per device is the way to go) at a huge markup. One thing the audiophiles are right about is that switch mode supplies are big noise generators, additional filtering on the inputs and outputs is a necessity if RFI can cause problems (like ham or AM radio).
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May 25, 2014 19:19
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although I love ridiculing audiophiles, i've gotta say their posting has come in handy. I've currently got a marantz amplifier and a pair of yamaha studio speakers I got at garage sales for around $80 in total. When i'm buying audio gear, I tend to look up the model number on my phone and if I see many pages of audiophile ramblings I buy it. Seems to work for me.
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May 25, 2014 23:00
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saw this on boingboing just now, it’s beautiful. A $10000 audiophile CAT7 ethernet cable:quote:DIELECTRIC-BIAS SYSTEM (DBS, US Pat #s 7,126,055 & 7,872,195 B1): http://www.futureshop.co.uk/audioquest-diamond-rje-ethernet-cable-12m-p-7211.html#.U4XnVF7KOyq
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May 28, 2014 15:48
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It's a shame that even after all this time, nobody has developed a networking protocol with error correction.
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May 28, 2014 17:21
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GWBBQ posted:It's a shame that even after all this time, nobody has developed a networking protocol with error correction. Not to mention one that is bi-directional.
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May 28, 2014 19:48
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Yeah laugh it up guys, have you ever made an LED that lights up when you press a button? Didn't think so
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May 28, 2014 23:01
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Thinking of the rare case of directional cables being a real thing, Monoprice Redmere HDMI cables are great. I use Monoprice cables for installations at work and can knock 4% ($1000) off the cost of a classroom installation from scratch, even with a spare of each cable the user can connect to on hand
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May 29, 2014 03:07
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GWBBQ posted:Thinking of the rare case of directional cables being a real thing, Monoprice Redmere HDMI cables are great. I use Monoprice cables for installations at work and can knock 4% ($1000) off the cost of a classroom installation from scratch, even with a spare of each cable the user can connect to on hand Don't mention Monoprice here, it sets off the
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May 29, 2014 05:12
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The reviews for that silly expensive Cat7...
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May 29, 2014 10:14
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I'm totally in the wrong business. I could have made a fortune selling snake oil to audiophiles.
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May 29, 2014 10:18
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"multi-octave audio" I love the idea that someone, somewhere is listening to music made out of a single octave of sine waves and thinking 'There must be more than this'.
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May 29, 2014 10:33
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88h88 posted:The reviews for that silly expensive Cat7... I agree with the second review, the existence of that cable truly is a middle finger to common logic.
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May 29, 2014 12:43
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baka kaba posted:Yeah laugh it up guys, have you ever made an LED that lights up when you press a button? Didn't think so Have I made a light-emitting diode? No. Have I made a circuit where an LED lights up when you press a button? Yes. It takes like 20 seconds using bread board. 
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May 29, 2014 13:52
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Jerry Cotton posted:Have I made a light-emitting diode? No. Have I made a circuit where an LED lights up when you press a button? Yes. It takes like 20 seconds using bread board. drat, literally 
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May 29, 2014 14:11
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univbee posted:drat, literally I think  anyway but I  .
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May 29, 2014 14:15
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Wasabi the J posted:Don't mention Monoprice here, it sets off the Because cables are like wine: You don't buy the cheapest, you buy the second cheapest.
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May 29, 2014 15:44
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Theris posted:Because cables are like wine: You don't buy the cheapest, you buy the second cheapest. Monoprice is the second cheapest. http://www.dx.com/c/consumer-electronics-199/audio-video-cables-123
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May 29, 2014 16:50
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Audiophile mockery be damned, cheap RCA and TRS cables can gently caress right off. I'm not sure I've ever seen one last more than a few months before at least one conductor was unreliable, if I find one I just assume it's broken because it usually is.
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May 29, 2014 18:21
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For home use? Stick your dick in the connector for all I care. For professional use? Don't you loving dare buy cheap cables and then assume they'll still be intact after 400 idiots have fiddled with them because "I need to plug in my Itunes" or something ludicrous like that.
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May 29, 2014 18:29
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Yeah. I thought we had this argument a few months back. Buy nice cables for professional use because they are sturdy not because they "sound better".
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May 29, 2014 18:36
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longview posted:Audiophile mockery be damned, cheap RCA and TRS cables can gently caress right off. Using well constructed audio cabling isn't audiophile, it's common sense. This thread is about laughing at people who think interconnects need to cost $thousands because of the magic pixie dust inside that makes them better, but not measurably so.
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May 29, 2014 19:29
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I make my own cables for both home and use with my PA. It's nice to know the structural quality of the stuff you're using.
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May 29, 2014 19:34
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88h88 posted:I make my own cables for both home and use with my PA. It's nice to know the structural quality of the stuff you're using. A lot of people cut off the old connector and solder in a new one whenever they buy new headphones because it removes one worry. (And it's not exactly a lengthy operation anyway.)
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May 29, 2014 19:37
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EL BROMANCE posted:Using well constructed audio cabling isn't audiophile, it's common sense. This thread is about laughing at people who think interconnects need to cost $thousands because of the magic pixie dust inside that makes them better, but not measurably so. Quantum conditioned, gold plated, oxygen evacuated, uni-directional pixie dust. Mere plebeian pixie dust will not suffice for Golden Ears.
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May 29, 2014 19:59
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longview posted:Audiophile mockery be damned, cheap RCA and TRS cables can gently caress right off. The thing is that professional-quality cables cost like $20 and not $17,000. Your average home theater owner is going to unplug and re-plug what, maybe once a year?
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May 29, 2014 20:29
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Jerry Cotton posted:Have I made a light-emitting diode? No. Have I made a circuit where an LED lights up when you press a button? Yes. It takes like 20 seconds using bread board. But does it also have a box with bolts sticking out of it so you can test fuses? You ain't on my level By 'test fuses' I of course mean that it aligns the conductor's molecules in the direction of electron flow, using an alignment phasing pattern that matches the frequency of your AC supply, to truly condition your power at the very point it enters your system
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May 30, 2014 17:31
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baka kaba posted:But does it also have a box with bolts sticking out of it so you can test fuses? You ain't on my level No I don't think the book gets to those before chapter 3 or something.
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May 30, 2014 17:32
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I need the S-parameters of a fuse for my audiophile amp
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May 30, 2014 20:12
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longview posted:I need the S-parameters of a fuse for my audiophile amp Wouldn't that be for a capacitor ? And, if so, is actually very important when constructing or servicing crossover networks.
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May 31, 2014 01:47
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OK Everyone! Put up or loving shut up. The Philips Golden Ear challenge! Golden ear training and blind A/B/C tests. Some of them are easy, some of them like the 6db coloration tests I couldn't do, atleast from my Samsung Chromebook. I think to get a good score, you would need to listen at near reference levels on decent calibrated speakers, like they do in studios. Edit: Maybe I should provide a link: https://www.goldenears.philips.com
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May 31, 2014 01:50
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jonathan posted:OK Everyone! Put up or loving shut up. The Philips Golden Ear challenge! I wanna see how my computers do at home.
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May 31, 2014 01:56
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