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Post by monkumonku on May 28, 2015 9:06:26 GMT -5
Anything labelled "reference" should be dead quiet I doubt there is any such thing as dead quiet. Even a sea shell makes sound...  You must be using cheap sea shells. Mine have been cryo-treated and are dead quiet, especially since whatever was living in them before is now dead, too. Having them on sea shell beach chair risers helps as well. But seriously (as if I wasn't already being serious), just what exactly is "dead quiet?" Even in what seems like a quiet room, an SPL meter will register in the mid-30 db range. There is always some sort of background noise going on unless you have a totally insulated, soundproof listening room that has been acoustically deadened, in which case your music is going to sound horrible because it, too, will sound dead. But in a normal situation for most people, there will indeed be various background noises so just what exactly is "dead quiet?" I can imagine if any of us were put into a room that measured 0 decibels, we'd go mad and the sound vacuum would suck our brains out and splatter them against the wall (and the noise would be deafening). |
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Post by novisnick on May 28, 2015 9:19:20 GMT -5
munkumonku, "I can imagine if any of us were put into a room that measured 0 decibels, we'd go mad and the sound vacuum would suck our brains out and splatter them against the wall (and the noise would be deafening). ". I think this phenomenon has happened to more then a few of us on this forum!!  |
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Post by vneal on May 28, 2015 9:20:38 GMT -5
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Post by aud on May 28, 2015 9:34:35 GMT -5
I doubt there is any such thing as dead quiet. Even a sea shell makes sound... You must be using cheap sea shells. Mine have been cryo-treated and are dead quiet, especially since whatever was living in them before is now dead, too. Having them on sea shell beach chair risers helps as well. But seriously (as if I wasn't already being serious), just what exactly is "dead quiet?" Even in what seems like a quiet room, an SPL meter will register in the mid-30 db range. There is always some sort of background noise going on unless you have a totally insulated, soundproof listening room that has been acoustically deadened, in which case your music is going to sound horrible because it, too, will sound dead. But in a normal situation for most people, there will indeed be various background noises so just what exactly is "dead quiet?" I can imagine if any of us were put into a room that measured 0 decibels, we'd go mad and the sound vacuum would suck our brains out and splatter them against the wall (and the noise would be deafening). Thank you monkumonku, you got my point across much better than I did. |
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Post by monkumonku on May 28, 2015 9:37:29 GMT -5
 Limited edition, on sale now! CD version: $99.95 SACD Hi-Res version (even more silent): $149.95 Downloadable 48/384 Super Hi-Res version (silenter silents - you can hear the difference): $199.95 Blu Ray 4K 7.2 surround channel version: $249.95 Blu Ray 4K 13.4 surround channel version with Atmos (so you know how high the silence is): $349.95 Vinyl version: Silent vinyl??? Are you kidding?? Get outta here! |
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Post by monkumonku on May 28, 2015 9:41:44 GMT -5
Which brings up the age old question, if you beat a dead horse in the woods, does it make any sound? |
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Post by novisnick on May 28, 2015 9:45:54 GMT -5
Which brings up the age old question, if you beat a dead horse in the woods, does it make any sound? Only if you put your ear right up to it,,,,,,he,,,,he,,,,he,,,,,,,, it just had to be said!! |
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Post by geebo on May 28, 2015 9:50:50 GMT -5
I doubt there is any such thing as dead quiet. Even a sea shell makes sound... You must be using cheap sea shells. Mine have been cryo-treated and are dead quiet, especially since whatever was living in them before is now dead, too. Having them on sea shell beach chair risers helps as well. But seriously (as if I wasn't already being serious), just what exactly is "dead quiet?" Even in what seems like a quiet room, an SPL meter will register in the mid-30 db range. There is always some sort of background noise going on unless you have a totally insulated, soundproof listening room that has been acoustically deadened, in which case your music is going to sound horrible because it, too, will sound dead. But in a normal situation for most people, there will indeed be various background noises so just what exactly is "dead quiet?" I can imagine if any of us were put into a room that measured 0 decibels, we'd go mad and the sound vacuum would suck our brains out and splatter them against the wall (and the noise would be deafening). You have to remove the once living and now dead thing from the shell to hear anything. The carcass acts to deaden the sound. |
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Post by geebo on May 28, 2015 9:52:43 GMT -5
Which brings up the age old question, if you beat a dead horse in the woods, does it make any sound? Do you mean if a tree falls in the forest an lands on a horse and kills it? |
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Post by cheglie on May 28, 2015 11:43:39 GMT -5
Both of my XPA-5's put out a "buzzing noise" when there is no input. However, I have found it to be rare that I listen to them in this state......so it has not been an issue for me?
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Post by orthikon on May 28, 2015 12:14:32 GMT -5
I have a similar hiss (quite audible from seating position) with XPA-1s and Mcintosh C2200 pre amp running 35 foot balanced connections. The hiss doesn't seem to be affected by the volume of the preamp
I tried using a cheater plug to no avail. I live in an apartment and rewiring is out of the question.
I have tried another preamp with the XPA-1 and another amp with the C2200 and there is no hiss when using other combinations.
What I'm wondering is that if this were an electrical or cable issue, why isn't there buzzing when I'm using other pre-amp and amp combinations???
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Post by pedrocols on May 28, 2015 12:20:43 GMT -5
Good afternoon people. Did I miss anything while I was away listening to my buzz and hisss free tube monoblock amps?
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Post by jmilton on May 28, 2015 12:40:03 GMT -5
Good afternoon people. Did I miss anything while I was away listening to my buzz and hisss free tube monoblock amps? ^ Reminds me of this... ![]()  |
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Post by pedrocols on May 28, 2015 12:48:43 GMT -5
Precisely!
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Post by stanlee on May 28, 2015 16:17:29 GMT -5
Good afternoon people. Did I miss anything while I was away listening to my buzz and hisss free tube monoblock amps? What mono's do you have Pedro? |
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Post by roadwar on May 28, 2015 16:32:37 GMT -5
Good afternoon people. Did I miss anything while I was away listening to my buzz and hisss free tube monoblock amps? This. MONOBLOCKS! The cure to all of life's ills. Nothing like a little buzz and hiss free MONOBLOCK therapy. |
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Post by roadwar on May 28, 2015 16:36:01 GMT -5
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Post by pedrocols on May 28, 2015 16:50:41 GMT -5
Good afternoon people. Did I miss anything while I was away listening to my buzz and hisss free tube monoblock amps? What mono's do you have Pedro? Look on my sig...and for some odd reason I still not a member of the Monoblock Society...Nick take note... |
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Post by aud on May 28, 2015 18:50:10 GMT -5
What mono's do you have Pedro? Look on my sig...and for some odd reason I still not a member of the Monoblock Society...Nick take note... I wouldn't worry about it. I have seven monoblocks and I still haven't been inducted into the Monoblock Society. |
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Post by orthikon on May 29, 2015 11:55:39 GMT -5
I did further testing and I have to put to put my ear against the tweeters using C2200 and MC402 combo. C2200 has balanced outputs but not fully balanced to my knowledge. No noise when I disconnect signal cable. I wonder if the increased gain of the XPA-1 has something to do with the louder noise compared to the above combo. No audible noise at all with my Audio GD NFB-6 pre-amp and MC402 or XPA-1. The NFB-6 is a fully balanced desgin. Does anyone know more about circuit design if having outputs balanced or fully balanced matter? What other factors might affect it? I have a similar hiss (quite audible from seating position) with XPA-1s and Mcintosh C2200 pre amp running 35 foot balanced connections. The hiss doesn't seem to be affected by the volume of the preamp I tried using a cheater plug to no avail. I live in an apartment and rewiring is out of the question. I have tried another preamp with the XPA-1 and another amp with the C2200 and there is no hiss when using other combinations. What I'm wondering is that if this were an electrical or cable issue, why isn't there buzzing when I'm using other pre-amp and amp combinations??? |
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