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Post by Axis on Jun 16, 2016 15:48:53 GMT -5
Axis, most people were concerned about the longevity of a switching power supply versus the linear. If the linear will last 10-15 years on average versus 5-7 years for switchable then why would i want to buy that. If emotiva wants to warrantee their product for ten years on the switchable power supply then thats what will produce real sales. I have no problem buying their products with the linear power supplies. The switching power supplies would make me want to be cautious to hear about the failure rates first. I do not remember reading anything about longevity. It was SMPS makes noise I remember people posting about. Vividly remember it. Where are they now is what I am saying. Is there a Ham radio operator here with a Emotiva XPA Gen 3 amplifier in there house that is knocking out there communications ? Where art thou ? |
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Post by sycraft on Jun 16, 2016 16:04:37 GMT -5
High frequency noise. I don't have a spectrum analyzer to tell you what, but mostly 4kHz and above roughly equal noise per frequency. Level is pretty low, I don't know how loud as it is below the measurement capability of my SPL meter, but the room is very, very quiet.
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Post by Axis on Jun 16, 2016 16:27:50 GMT -5
High frequency noise. I don't have a spectrum analyzer to tell you what, but mostly 4kHz and above roughly equal noise per frequency. Level is pretty low, I don't know how loud as it is below the measurement capability of my SPL meter, but the room is very, very quiet. Wow, sure glad my ears are not that good. I have a little cheep emotiva ultra series amplifier and all I hear is music when I use it. Do you guys really hear noise ? You can tell through the music a certain frequency of noise ? When I turn on my little cheep emotiva ultra series amplifier and put my ear physically on it I hear nothing. When I feed it a signal I hear nothing until the volume is raised and then I hear the signal. Am I the luckiest person on the planet ? |
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Post by sycraft on Jun 16, 2016 17:24:24 GMT -5
No, not through the music, only when the system is idle. Yes, this is a hugely first world complaint but hey, I'm paying a good bit for a good system, I want it dead silent (perceptually) when it is idling. Any music is enough to drown it out.
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Post by leonski on Jun 16, 2016 17:51:18 GMT -5
Their monoblocks are beyond what I am willing to pay for amps. Were I to pay that much, I'd get Rotel or ATI amps since both of those I've verified as quiet. My 2x250 ICE amps were so quiet I could not hear Any Hiss or whatever even with VC at maximum. A stellar performance. Speakers were very LOW sensitivity. |
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Post by Axis on Jun 16, 2016 17:58:31 GMT -5
No, not through the music, only when the system is idle. Yes, this is a hugely first world complaint but hey, I'm paying a good bit for a good system, I want it dead silent (perceptually) when it is idling. Any music is enough to drown it out. Dead silent at idle is possible because my system is just that. Emotiva USP-1,Emotiva UPA-2 & Emotiva ERC-1 using Emotiva interconnects and stock power cords. Emotiva speaker cables connected to Sony 3 way speakers. I just tested my system. I turned the AC off just so I could hear it with no sound in the room. With the USP-1, UPA-2 and ERC-1 turned on and the ERC-1 selected on the USP-1 with a CD loaded and the ERC-1 on pause. I turned the volume control on the USP-1 from the 7 o'clock position (lowest) to the 5 o'clock position (highest). There is no sound from my speakers until the volume control is at the 3 o'clock position and then you need your ear inches from the speaker to hear a faint white noise hiss. I never have my volume control past the 12 o'clock position. With my volume control in the normal listening range my system is dead silent. You may want to look at your other gear for noise. Emotiva gear is dead silent. All there gear. |
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Post by gzubeck on Jun 19, 2016 17:21:32 GMT -5
Arent we talking about noise from a switching power supply? I would think any linear power supply can be designed to be dead quiet!
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Post by Boomzilla on Jun 19, 2016 17:57:45 GMT -5
This is an interesting thread.
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Post by Gary Cook on Jun 19, 2016 18:51:43 GMT -5
High frequency noise. I don't have a spectrum analyzer to tell you what, but mostly 4kHz and above roughly equal noise per frequency. Level is pretty low, I don't know how loud as it is below the measurement capability of my SPL meter, but the room is very, very quiet. Dead silent at idle is possible because my system is just that. Emotiva USP-1,Emotiva UPA-2 & Emotiva ERC-1 using Emotiva interconnects and stock power cords. Emotiva speaker cables connected to Sony 3 way speakers. I just tested my system. I turned the AC off just so I could hear it with no sound in the room. With the USP-1, UPA-2 and ERC-1 turned on and the ERC-1 selected on the USP-1 with a CD loaded and the ERC-1 on pause. I turned the volume control on the USP-1 from the 7 o'clock position (lowest) to the 5 o'clock position (highest). There is no sound from my speakers until the volume control is at the 3 o'clock position and then you need your ear inches from the speaker to hear a faint white noise hiss. I never have my volume control past the 12 o'clock position. With my volume control in the normal listening range my system is dead silent. You may want to look at your other gear for noise. Emotiva gear is dead silent. All there gear. My experience is similar; A USP-1 with an XPA-2 and an more recently XPA-5 with short (750 mm) RCA interconnects and long (5 metre) speaker cables. Volume way above loud (party time) listening levels, no internal system noise. Anyone with a USP-1 can speak as to their rapid increase in volume. It didn't like the MIG welder in the garage, but I didn't do a lot of welding while listening to music, so hardly an issue. A USP-1 and a pair of XPA-1L's with long (5 metre) Emotiva RCA interconnects and short (1 metre) DIY speaker cables, solved the MIG problem, but the ice maker in the fridge was just barely audible but only in silent passages and when it was making crushed ice. Now an XSP-1 and the pair of XPA-1L's with long XLR interconnects and short (1 metre) Emotiva speaker cables. No MIG and no ice maker introduced noise now, it's silent at even with ears pressed up to the speakers. Keeping in mind that I am in Australia running on 240 volt 15 amp circuits at 50 hz utilising speakers with 91 db efficiency. Cheers Gary |
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Post by Axis on Jun 19, 2016 19:03:47 GMT -5
High frequency noise. I don't have a spectrum analyzer to tell you what, but mostly 4kHz and above roughly equal noise per frequency. Level is pretty low, I don't know how loud as it is below the measurement capability of my SPL meter, but the room is very, very quiet. Dead silent at idle is possible because my system is just that. Emotiva USP-1,Emotiva UPA-2 & Emotiva ERC-1 using Emotiva interconnects and stock power cords. Emotiva speaker cables connected to Sony 3 way speakers. I just tested my system. I turned the AC off just so I could hear it with no sound in the room. With the USP-1, UPA-2 and ERC-1 turned on and the ERC-1 selected on the USP-1 with a CD loaded and the ERC-1 on pause. I turned the volume control on the USP-1 from the 7 o'clock position (lowest) to the 5 o'clock position (highest). There is no sound from my speakers until the volume control is at the 3 o'clock position and then you need your ear inches from the speaker to hear a faint white noise hiss. I never have my volume control past the 12 o'clock position. With my volume control in the normal listening range my system is dead silent. You may want to look at your other gear for noise. Emotiva gear is dead silent. All there gear. My experience is similar; A USP-1 with an XPA-2 and an more recently XPA-5 with short (750 mm) RCA interconnects and long (5 metre) speaker cables. Volume way above loud (party time) listening levels, no internal system noise. Anyone with a USP-1 can speak as to their rapid increase in volume. It didn't like the MIG welder in the garage, but I didn't do a lot of welding while listening to music, so hardly an issue. A USP-1 and a pair of XPA-1L's with long (5 metre) Emotiva RCA interconnects and short (1 metre) DIY speaker cables, solved the MIG problem, but the ice maker in the fridge was just barely audible but only in silent passages and when it was making crushed ice. Now an XSP-1 and the pair of XPA-1L's with long XLR interconnects and short (1 metre) Emotiva speaker cables. No MIG and no ice maker introduced noise now, it's silent at even with ears pressed up to the speakers. Keeping in mind that I am in Australia running on 240 volt 15 amp circuits at 50 hz utilising speakers with 91 db efficiency. Cheers Gary Talk about RF noise. I live in an apartment and normally when I listen to my C. Crane radio with AM I get lots of noise. During the day you can hardly pick up any stations. Well on Friday Saturday @ 7:15 am a car hit the power pole on my street and knocked out the power to our apartments for 7 hours. I got my C. Crane radio out that is battery powered and sat on the back porch to just chill and the AM stations were crystal clear and noise free. Just goes to show you how much noise a typical house can generate. |
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Post by pelennor on Jun 19, 2016 20:47:23 GMT -5
My experience is similar; A USP-1 with an XPA-2 and an more recently XPA-5 with short (750 mm) RCA interconnects and long (5 metre) speaker cables. Volume way above loud (party time) listening levels, no internal system noise. Anyone with a USP-1 can speak as to their rapid increase in volume. It didn't like the MIG welder in the garage, but I didn't do a lot of welding while listening to music, so hardly an issue. A USP-1 and a pair of XPA-1L's with long (5 metre) Emotiva RCA interconnects and short (1 metre) DIY speaker cables, solved the MIG problem, but the ice maker in the fridge was just barely audible but only in silent passages and when it was making crushed ice. Now an XSP-1 and the pair of XPA-1L's with long XLR interconnects and short (1 metre) Emotiva speaker cables. No MIG and no ice maker introduced noise now, it's silent at even with ears pressed up to the speakers. Keeping in mind that I am in Australia running on 240 volt 15 amp circuits at 50 hz utilising speakers with 91 db efficiency. Cheers Gary I'm also based in Australia and with around 91db efficient speakers, and I can hear a low level of hiss from all of my speakers (with my ear close to them). That's with a UMC-1 as processor, and both Crown and Behringer pro amps, and a UPA-1 as my center speaker amps. Having said that the hiss is more audible on the pro amp powered speakers. |
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Post by leonski on Jun 20, 2016 13:02:42 GMT -5
AXIS SAID: Talk about RF noise. I live in an apartment and normally when I listen to my C. Crane radio with AM I get lots of noise. During the day you can hardly pick up any stations. Well on Friday Saturday @ 7:15 am a car hit the power pole on my street and knocked out the power to our apartments for 7 hours. I got my C. Crane radio out that is battery powered and sat on the back porch to just chill and the AM stations were crystal clear and noise free. Just goes to show you how much noise a typical house can generate. I HAD the same experience here in SoCal when somebody tripped on the Extension Cord from Arizona. Lights went out from the Mexican Border to Santa Barbara and beyond. I had 12 hours of DEAD QUIET for SW Listening. On AM, I could pick up a station every 10khz for the entire band. My radio is a SONY ICF2010 which is one of the finest portables ever made. Triple Conversion, Synchronous Detector, and other tuning aids including 0.1khz selectable. en.wikipedia.org/wiki/2011_Southwest_blackoutWant some RF noise locally generated? Get within 20 feet (6 meters) of a working PLASMA TV. That'll fix you right up. |
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Post by JKCashin on Jun 20, 2016 23:27:39 GMT -5
My noise level (RF) is s9 on all bands from 50M down  so I doubt it could get worse. |
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Post by coldfusion on Aug 2, 2016 0:30:38 GMT -5
High frequency noise. I don't have a spectrum analyzer to tell you what, but mostly 4kHz and above roughly equal noise per frequency. Level is pretty low, I don't know how loud as it is below the measurement capability of my SPL meter, but the room is very, very quiet. What speakers do you have and what is their sensitivity? Others anecdotally saying their amp is "dead quiet" is irrelevant if their speaker sensitivity is way less than yours... |
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Post by leonski on Aug 2, 2016 1:09:06 GMT -5
The gen 3 isn't a fully balanced amp. So some of the distortion reductions don't occur in this. But balanced XLR is the superior connection. Not sure if you'll notice an audible difference. It is POSSIBLE that the additional conversion to/from balanced COULD cause audible problems. Just possible. And I'll admit that between my DAC and PreAmp, I do use Mogami Balanced. Neither is native 'balanced' but even during critical listening I don't feel I'm sacrificing anything. |
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Post by wojcikjoel on Sept 19, 2016 18:56:19 GMT -5
This is my speaker I'm looking to get the xpa3  |
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Post by garbulky on Sept 19, 2016 19:17:01 GMT -5
This is my speaker I'm looking to get the xpa3 Yeah it'll do fine. .......However...there are other nice speaker choices out there.  |
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Post by srpawski on Sept 19, 2016 19:24:25 GMT -5
Nice....
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Post by leonski on Sept 19, 2016 21:34:25 GMT -5
This is my speaker I'm looking to get the xpa3 Yeah it'll do fine. .......However...there are other nice speaker choices out there. Missing information prevents saying 'yes' or 'no' to your amp choice. Though, my worthless opinion is that 92db sensitive speakers with 200 watts SHOULD be fine. 12.5 watts continuous per speaker will STILL give 12db headroom to RATED power. Amp might have another 1->2db headroom against spec. That's pretty darn loud, especially against the 92db /1watt-1meter rating. Missing info? Phase data of speaker. Not usually available, only Stereophile, that I know of, actually take this data and publish. Size of room. Bigger requires more 'juice'. Listening Habits. Nose-bleed types ALWAYS seem to need 'more power'. |
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Post by wojcikjoel on Oct 14, 2016 16:20:40 GMT -5
Yeah it'll do fine. .......However...there are other nice speaker choices out there. Missing information prevents saying 'yes' or 'no' to your amp choice. Though, my worthless opinion is that 92db sensitive speakers with 200 watts SHOULD be fine. 12.5 watts continuous per speaker will STILL give 12db headroom to RATED power. Amp might have another 1->2db headroom against spec. That's pretty darn loud, especially against the 92db /1watt-1meter rating. Missing info? Phase data of speaker. Not usually available, only Stereophile, that I know of, actually take this data and publish. Size of room. Bigger requires more 'juice'. Listening Habits. Nose-bleed types ALWAYS seem to need 'more power'. Size of room is 24x19 with 14' vaulted ceiling. I listen to my movies loud enough to sometimes make my ears ring afterwards suckerpunch definitely achieved that ha |
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so I doubt it could get worse. 
