Deleted
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Post by Deleted on Jan 22, 2013 11:05:46 GMT -5
I'm pretty sure the real-world effective distance for the consideration of using XLRs is MUCH longer than 1 meter, probably more on the order of 5 meters or so. Below that and RCAs work just fine. This is another area upon which I think most Lounge members stress unnecessarily....
-RW-
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klinemj
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Official Emofest Scribe
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Post by klinemj on Jan 22, 2013 21:26:52 GMT -5
I suggest Emotiva has an e-zine section on which beverage to pair with specific hardware AND music. Wait...we know Big Dan's answer...Steely Dan with beer, with wine, with bourbon, with vodka, with gin, with....well...anything...
By the way...when does the e-zine start?
Mark
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Post by chaosrv on Jan 22, 2013 21:53:55 GMT -5
I'm pretty sure the real-world effective distance for the consideration of using XLRs is MUCH longer than 1 meter, probably more on the order of 5 meters or so. Below that and RCAs work just fine. This is another area upon which I think most Lounge members stress unnecessarily.... -RW- True but the XLR's just LOOK cool.  |
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Deleted
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Post by Deleted on Jan 22, 2013 23:44:09 GMT -5
By the way...when does the e-zine start? Mark 2nd quarter, 2014. |
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Post by jmilton on Jan 23, 2013 7:20:13 GMT -5
By the way...when does the e-zine start? Mark 2nd quarter, 2014. What Chuckienutter meant was, they should start shipping the e-zine from China during the 2nd quarter of 2014. Add a few weeks for deliver and shipment to your home.  |
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Post by Gary Cook on Jan 23, 2013 17:48:59 GMT -5
I'm pretty sure the real-world effective distance for the consideration of using XLRs is MUCH longer than 1 meter, probably more on the order of 5 meters or so. Below that and RCAs work just fine. This is another area upon which I think most Lounge members stress unnecessarily.... -RW- Yet the longest XLR interconnect I can find in the Emotiva catalogue is 5 metres. Sure there are other reasons for choosing XLR interconnects, that's why it would make an interesting Emozine article. There is some kudos in saying that we shouldn't buy Emotiva 0.5 mtre XLR interconnects for the sound improvement as there isn't any. But by all means buy them for other reasons. After all that's what Emotiva is all about, products that are "accessible to people who want better sound". Cheers Gary |
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Post by cwt on Feb 3, 2013 11:49:26 GMT -5
I agree with the above, as long as articles remain Emotiva-focussed. Otherwise it could come off as just a rehash of Audioholics.  +1 .Along those lines [and because theres a link to Dr Bozovic's work] an update and discussion on the efficacy of crosstalk reduction software for speakers and emotiva;s stance on this stereotimes.com/CES07bCP.shtmlIme TACTfull enough not to ask any questions about inclusion in certain pre pro;s Just curious where the tech has gone in recent years .. |
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Post by broncsrule21 on Feb 3, 2013 16:49:58 GMT -5
Is the Emo-Zine being held up by Chinese New Year |
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Deleted
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Post by Deleted on Feb 4, 2013 3:49:08 GMT -5
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Post by Gary Cook on Feb 4, 2013 22:29:06 GMT -5
From the other thread, Butler versus XPA at sibilance sonics.
Cheers
Gary
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Post by Boomzilla on Mar 9, 2013 5:38:06 GMT -5
What I'd like to read in the Emo-zine:
1. Design philosophy for Emotiva amplifiers - Emo makes some of the best-sounding amplifiers I've ever heard. Despite the amazing sound quality, Emo markets the amplifiers at a fraction of the competition's cost. I'd like to read an article about what circuit features, components, and design choices are used to create the "Emotiva sound" at the prices that Emo has. Does Emo believe that lots of power supply capacitance matters? Does Emo use film-capacitors at critical signal points? Does Emo think that doubling of wattage at half the output impedance is a goal to try for? What does Emo think of "Class D" switching amplifiers, etc.? What parts had to be cut or reduced in quality to meet the price points?
2. The future of digital media servers - Lonnie is obviously excited about digital content streaming. I'd like to read his thoughts about what features are important for a digital streaming device and what aren't.
3. The continued attraction of tubes - Emotiva has teased the Lounge denizens with mention of tubed product(s). I'd like to read Emotiva's thought process on what are good and bad applications for tube technology (signal amplification - pre, power, or both? Power rectification? Tubes in digital switching applications?)
4. Where we've come from - Emotiva's reviews of their OWN products. Looking back on Emo products, what went right? What went wrong? Where could Emotiva have done better? What lessons were learned from mistakes? What products were well received by consumers, which were not and why? Etc...
Enough for now - more to come down the road.
Cheers - Boomzilla
PS: In order to prevent Emo-zine articles from being "overly technical," perhaps a discussion of topics in layman's terms could appear in the Emo-zine with a hyperlink to more technical explanations for only those who are interested. Just a thought...
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reaper60
Sensei
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Post by reaper60 on Mar 12, 2013 12:22:25 GMT -5
Monople - Bipole - Dipole - Direct Radiating - Passive Radiating - Passive EQ - Active EQ - Comb filtering - Diffraction - etc. These terms are used regularly in the audio field by people "in the know" and the layman would really appreciate some explainations to help us along. I grew a much larger fondness for the efforts of speaker manufacturers to perfect the science of sound once I started building speakers and reading Vance Dickasons cookbook. I suggested a very much shorted article about these common terms would be extremely helpful!
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hemster
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Post by hemster on Mar 31, 2013 16:42:28 GMT -5
Hey Keith, Reg brilliantly suggested an Emo-zine on PEQ. How about it, eh? |
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Post by Axis on Mar 31, 2013 17:25:15 GMT -5
Hey Keith, Reg brilliantly suggested an Emo-zine on PEQ. How about it, eh? I would be very interested in this topic. I am old school PEQ and if all goes well with the update I will be playing with an SR-8100 soon. I know I should be more up to date on everything. I see alot of sharp people here fighting the good fight and bet this topic after the UMC-200 Pro cal thread would be spot on. Keith, your the Man. |
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KeithL
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Post by KeithL on Mar 31, 2013 19:22:42 GMT -5
Good suggestion there..... The next EmoZine article is already on the way - and is going to be Understanding Digital Audio - which will be about the actual basics of what it is, how it works, and what some of the terms and concepts really MEAN (there seems to be a lot of misunderstanding there). I will schedule the one after that to be a tutorial on how to use Parametric Equalization (and how it actually works). Hey Keith, Reg brilliantly suggested an Emo-zine on PEQ. How about it, eh? |
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Post by SticknStones on Mar 31, 2013 19:35:16 GMT -5
Good suggestion there..... The next EmoZine article is already on the way - and is going to be Understanding Digital Audio - which will be about the actual basics of what it is, how it works, and what some of the terms and concepts really MEAN (there seems to be a lot of misunderstanding there). I will schedule the one after that to be a tutorial on how to use Parametric Equalization (and how it actually works). Hey Keith, Reg brilliantly suggested an Emo-zine on PEQ. How about it, eh? That is awesome Keith. Until Emotiva started to include an inboard method of using P-EQ I had not really tried to understand it much. There are outboard products and software and such but I think something more personal to the Emotiva implementation would be a very popular piece.  |
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KeithL
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Post by KeithL on Mar 31, 2013 20:05:58 GMT -5
I'll go you one better and do it right here: (actually a "full glossary" would be endless because there are a lot of terms - but I'll cover these for you here) The first few of those have to do with speakers - specifically with what direction the sound comes out of the speaker (sometimes called "wave launch" by people who can't resist a technical term). These next few terms are lately applied mostly to surrounds, but they are valid for any speaker. The specific discussion usually revolves around which you should use for your surrounds and which way you should face them. A MONOPOLE is simply a speaker where all the sound comes out one side; usually the front and usually facing the listener. A regular "box speaker" is a classic monopole (some people would argue that this also applies to a sphere radiating equally in all directions - but I don't agree on that). A BIPOLE radiates to both the front and back, but both signals are in phase. A surround with two drivers, one on the front and one on the back, both running IN PHASE, would be a bipole (or one of those faceted looking ones like ours, with one angled side facing forward and the other back). A DIPOLE is similar, except that the front driver is running IN PHASE, while the rear driver is running OUT OF PHASE. Mount a single midrange - with no box - edge towards the wall - front side towards the front of the room - and you have a dipole (sound from the front is in phase, sound from the back is out of phase). You can also make one with two drivers, and run them out of phase. Lots of surrounds have two drivers and you can switch them between bipole and dipole. (Just pick the way you think sounds better.) There are also full a few range dipoles (think Magneplanars, electrostatics, and Linkwitz). One bad thing about dipoles is that the low frequencies cancel out, so they make very little bass (unless they are huge). Little dipoles (like surrounds) tend to have a very diffuse sound stage (which some people LIKE for a surround); big ones don't DIRECT RADIATING means that the speaker is facing you and the sound is being sent directly towards you - and not being bounced off a wall or going through a port first. A PASSIVE RADIATOR is a speaker driver without a voice coil. They are used almost solely for bass. A passive radiator isn't really a woofer; acoustically, it is equivalent to a very long, very large port (but smaller). EQ (equalization) is anything that changes the frequency response deliberately, and can include simple tone controls up to - basically anything. Most EQs are active (powered), but a speaker crossover could have passive EQ in it to adjust the way the drivers sound. [Under some circumstances, an audio interconnect could act as a passive EQ, and some phono preamps have amplifiers and passive EQ sections (separated) rather than an active EQ section.] Most equalizers these days are active in one way or another (active just means it uses electronics that draw power - like transistors, op-amps, or processors). If there's any confusion for anyone, PEQ does NOT mean "passive EQ"; it means PARAMETRIC EQ, which means that you can adjust a lot of things about how it works. Instead of fixed frequency bands like the old graphic EQs, you can move each band, and set how wide it is, as well as turn it up and down. They are a lot more powerful, but there's a lot more to setting one up right. COMB FILTERING refers to the general fact that if you take sound from two different sources, and apply some phase shift or mechanical shift, then let them add together, a whole bunch of frequencies will end up cancelling out and a whole bunch will end up reinforcing each other - and the frequency response graph will end up looking like a comb. This will often happen when two drivers in a speaker deliver the same band of frequencies (like two midranges). (This is usually something to try and avoid - or at least control.) Comb filtering can also happen (deliberately or accidentally) electronically and is sometimes part of the process of making "fake stereo" or "synthesized surround". DIFFRACTION refers to a whole group of effects. In speakers, it's usually referring to how sound "bends" around sharp edges, sometimes going where you don't want it to. For example, you make a box speaker, with the drivers facing you, and expect all the sound to be direct radiated to you. Instead, a lot of the sound is diffracted by the sharp edges of the box, ends up wrapping around the speaker and bouncing off the front wall behind it, and then reaches your ears a few milliseconds later - blurring the sound stage just a bit. Monople - Bipole - Dipole - Direct Radiating - Passive Radiating - Passive EQ - Active EQ - Comb filtering - Diffraction - etc. These terms are used regularly in the audio field by people "in the know" and the layman would really appreciate some explainations to help us along. I grew a much larger fondness for the efforts of speaker manufacturers to perfect the science of sound once I started building speakers and reading Vance Dickasons cookbook. I suggested a very much shorted article about these common terms would be extremely helpful! |
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KeithL
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Post by KeithL on Mar 31, 2013 20:23:48 GMT -5
XLR (balanced) connections improve sound by ELIMINATING PROBLEMS. If you have hum or noise problems, then switching to balanced cables will quite possibly eliminate them. If your RCA connections are dead silent, then you have no problems to eliminate - so be happy. In some situations, RCA's will work fine for fifty feet. In others (in a room with lots of fluorescent lights, upstairs from a generating station, next door to one of the last operating FM stations) you may have trouble at three feet. If you're having hum problems, XLRs will almost certainly help; if you have other types of noises, they will probably help. Other than that, if you have a fully balanced fully differential system (like with an XSP-1 and a pair of XPR-1's, and an XDA-2) then you need to use XLR balanced connections to have a fully differential system. I'm pretty sure the real-world effective distance for the consideration of using XLRs is MUCH longer than 1 meter, probably more on the order of 5 meters or so. Below that and RCAs work just fine. This is another area upon which I think most Lounge members stress unnecessarily.... -RW- Yet the longest XLR interconnect I can find in the Emotiva catalogue is 5 metres. Sure there are other reasons for choosing XLR interconnects, that's why it would make an interesting Emozine article. There is some kudos in saying that we shouldn't buy Emotiva 0.5 mtre XLR interconnects for the sound improvement as there isn't any. But by all means buy them for other reasons. After all that's what Emotiva is all about, products that are "accessible to people who want better sound". Cheers Gary |
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Post by Boomzilla on Apr 1, 2013 8:30:28 GMT -5
Hi KeithL -
You're right about the noise cancellation of XLR connections, but how many need them? 99.999% of the public is adequately served by unblanced RCA cables. The same percentage use only interconnect lengths of one meter or less. Balanced circuitry may have theoretical advantages, but for the average consumer, those advantages will never be needed.
Cordially - Boomzilla
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Post by AudioHTIT on Apr 6, 2013 13:33:54 GMT -5
99.999% of the public is adequately served by unblanced RCA cables. Wow, at 0.001 I feel pretty special! Where did you find that stat? |
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