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Post by 405x5 on Aug 4, 2021 19:55:31 GMT -5
Looking forward to hearing the conclusion of this story…..and then confirming my suspicions. That being said looking forward to a satisfactory conclusion for the owner
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Post by bonscott on Aug 4, 2021 20:42:40 GMT -5
My XPA 7 Gen 3 has been working great from the day I bought it 2019. Zero issues with it. Although other people on some of these forums do
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Post by cubanjimbo on Aug 5, 2021 6:12:28 GMT -5
My XPA 7 Gen 3 has been working great from the day I bought it 2019. Zero issues with it. Although other people on some of these forums do That is great! Do keep in mind that I bought mine in 2018, so yours is a bit newer.
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cawgijoe
Emo VIPs
"We made too many of the wrong mistakes." - Yogi Berra
Posts: 4,914
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Post by cawgijoe on Aug 5, 2021 7:20:27 GMT -5
I'll chime in...my XPA-5 Gen 3 has had zero issues since I bought it in 2019.
I assume these amps are still under warranty....correct? Even though it's a pain, they will take care of you.
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Post by cubanjimbo on Aug 5, 2021 11:59:04 GMT -5
I'll chime in...my XPA-5 Gen 3 has had zero issues since I bought it in 2019. I assume these amps are still under warranty....correct? Even though it's a pain, they will take care of you. That is the plan so far. They accepted the one unit, so I hope they are fixing it now.
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Post by cubanjimbo on Aug 10, 2021 7:41:50 GMT -5
Hello.
The Emotiva technician informed that the issue was resolved by replacing the power supply. So, it looks like the other amp will go back to them for the same repair. Not sure what caused both power supplies to die, but have not had that happen with any other electronic unit I have owned in past 20 years.
I do have to thank Emotiva for the short power supply lifespan, though. It got me to buy the Yamaha MX-A5200, which I completely thought would be a piece of crap....and am totally in love with it! In all my years with different amps, I have never heard such crisp, clear sound from my movies! Dialogue is completely intelligible and the sound is exactly what I like.
So, in the end, a traditional Hollywood ending to this story.
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Deleted
Deleted Member
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Post by Deleted on Aug 10, 2021 9:08:18 GMT -5
Hello. The Emotiva technician informed that the issue was resolved by replacing the power supply. So, it looks like the other amp will go back to them for the same repair. Not sure what caused both power supplies to die, but have not had that happen with any other electronic unit I have owned in past 20 years. I do have to thank Emotiva for the short power supply lifespan, though. It got me to buy the Yamaha MX-A5200, which I completely thought would be a piece of crap....and am totally in love with it! In all my years with different amps, I have never heard such crisp, clear sound from my movies! Dialogue is completely intelligible and the sound is exactly what I like. So, in the end, a traditional Hollywood ending to this story. Brown outs?
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Post by doc1963 on Aug 10, 2021 9:36:36 GMT -5
Hello. The Emotiva technician informed that the issue was resolved by replacing the power supply. So, it looks like the other amp will go back to them for the same repair. Not sure what caused both power supplies to die, but have not had that happen with any other electronic unit I have owned in past 20 years. I do have to thank Emotiva for the short power supply lifespan, though. It got me to buy the Yamaha MX-A5200, which I completely thought would be a piece of crap....and am totally in love with it! In all my years with different amps, I have never heard such crisp, clear sound from my movies! Dialogue is completely intelligible and the sound is exactly what I like. So, in the end, a traditional Hollywood ending to this story. While I’m happy to hear that Emotiva has taken care of you, I have to say that yours is the first I’ve read of one of these power supplies failing. The chances of having TWO fail at the same identical time are beyond astronomical and one would have to assume that this catastrophic failure was caused by some kind of radical power issue within the environment. Personally, I have two Gen3 amps (an XPA-9 and a DR-2) both of which are as old as, or older than, yours and I have never encountered any problems from them whatsoever. Both of mine are plugged directly into a CMX-2 (which does not clamp power) which is plugged directly into the wall. I get plenty of storms and my power occasionally goes out, but all of my gear has survived. Regardless of the “ hows” and “ whys”, I’m glad that you’ve found something that you’re happy with and can enjoy. Good luck to you...
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Post by mgbpuff on Aug 10, 2021 10:12:19 GMT -5
Switching power supply = less reliability. Why? Because of increased complexity and increased number of components! SWPS is also responsible for those less than ideal distortion results. At least in a power amp, no SWPS for me!
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Post by audiosyndrome on Aug 10, 2021 10:16:45 GMT -5
Please provide empirical data to support your totally subjective “opinion”.
Russ
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Post by 405x5 on Aug 10, 2021 10:17:02 GMT -5
Glad to hear the good news however I would not stop there, without having everything electrical at my end checked by a licensed electrical contractor. Maybe something stupid simple like a loose wire or cracked outlet etc causing some very intermittent glitch, but as previously posted….slim to none that two supplies didn’t go south without a cause.
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Post by goodfellas27 on Aug 10, 2021 10:41:50 GMT -5
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Post by audiosyndrome on Aug 10, 2021 11:28:57 GMT -5
Was referring to mgbpuff’s post not yours. Russ
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Post by AudioHTIT on Aug 10, 2021 11:31:34 GMT -5
I assume he’s asking for data related to the comment regarding an SMPS being less reliable, as I haven’t read all of Amir’s review, does he cover reliability, and could he really in a brief testing period? Edit: I see he clarified
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Post by DavidR on Aug 10, 2021 12:03:17 GMT -5
Lightening Storm = culprit
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Post by cubanjimbo on Aug 10, 2021 12:12:39 GMT -5
Hello. The Emotiva technician informed that the issue was resolved by replacing the power supply. So, it looks like the other amp will go back to them for the same repair. Not sure what caused both power supplies to die, but have not had that happen with any other electronic unit I have owned in past 20 years. I do have to thank Emotiva for the short power supply lifespan, though. It got me to buy the Yamaha MX-A5200, which I completely thought would be a piece of crap....and am totally in love with it! In all my years with different amps, I have never heard such crisp, clear sound from my movies! Dialogue is completely intelligible and the sound is exactly what I like. So, in the end, a traditional Hollywood ending to this story. While I’m happy to hear that Emotiva has taken care of you, I have to say that yours is the first I’ve read of one of these power supplies failing. The chances of having TWO fail at the same identical time are beyond astronomical and one would have to assume that this catastrophic failure was caused by some kind of radical power issue within the environment. Personally, I have two Gen3 amps (an XPA-9 and a DR-2) both of which are as old as, or older than, yours and I have never encountered any problems from them whatsoever. Both of mine are plugged directly into a CMX-2 (which does not clamp power) which is plugged directly into the wall. I get plenty of storms and my power occasionally goes out, but all of my gear has survived. Regardless of the “ hows” and “ whys”, I’m glad that you’ve found something that you’re happy with and can enjoy. Good luck to you... Thank you, sir! I agree that this failure is very strange. The units were not working at the time, so it is a mystery.
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Post by cubanjimbo on Aug 10, 2021 12:16:03 GMT -5
Lightening Storm = culprit That is very possible. I just don't see how nothing else was affected, not even other equipment connected to that same surge protector / Panamax unit. Even two SVS monster subs that were connected DIRECTLY to the wall outlet were not affected in any way.
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KeithL
Administrator
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Post by KeithL on Aug 10, 2021 12:29:01 GMT -5
The XPA Gen3 amps do not have rail fuses... However there is one internal fuse - on the power supply. It is soldered in and is not considered to be "user serviceable" (it will also never blow under ordinary conditions). The XPA Gen3 amps are quite tolerant of power surges if they do encounter them... The only thing we can think of that could cause two of them to blow would be a sustained low voltage condition (or "brown out"). We've never seen this happen but it is not totally unexpected.
If the line voltage were to NOT shut off, but drop well below 100 VAC, and remain there for several seconds, it could cause the SMPS to draw excessive current. A similar situation could theoretically occur if the line voltage were to stick partway between the normal voltage ranges for 120 VAC and 230 VAC...
(This is a situation that most power companies try very hard to avoid since it is also very bad for devices like big air conditioners that have big motor-driven compressors.) If that's what happened then your amps really both need to be serviced. Hello, Their support person sent an email to me, stating that no internal fuses exist on this model...not sure if that is correct, but that is what they are telling me. That’s interesting because the XPA Gen3 Owner’s Manual says “ Only replace the fuse(s) in the XPA Gen3 amplifier with fuse(s) of proper value and voltage rating.” It’s certainly possible this is boilerplate language held over from previous models, but if it were me, I’d make sure before sending it back — a phone call would be your best bet. If you’re comfortable doing such things, unplug both of the amps and let them sit for a while, then carefully remove the top cover and visually inspect the inside looking for fuses, loose connectors, or anything unusual — you shouldn’t need to touch anything. Flip the amp over and do the same with the bottom plate, try to use the correct size screwdriver so you don’t damage or scratch the screws. If you’re not comfortable, and there’s no confirmation here that there are no fuses, maybe you can find a local shop or friend who can do this for you.
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Post by AudioHTIT on Aug 10, 2021 12:36:05 GMT -5
The XPA Gen3 amps do not have rail fuses... However there is one internal fuse - on the power supply. It is soldered in and is not considered to be "user serviceable" (it will also never blow under ordinary conditions). The XPA Gen3 amps are quite tolerant of power surges if they do encounter them... The only thing we can think of that could cause two of them to blow would be a sustained low voltage condition (or "brown out"). We've never seen this happen but it is not totally unexpected.
If the line voltage were to NOT shut off, but drop well below 100 VAC, and remain there for several seconds, it could cause the SMPS to draw excessive current. A similar situation could theoretically occur if the line voltage were to stick partway between the normal voltage ranges for 120 VAC and 230 VAC...
(This is a situation that most power companies try very hard to avoid since it is also very bad for devices like big air conditioners that have big motor-driven compressors.) If that's what happened then your amps really should come in for service. That’s interesting because the XPA Gen3 Owner’s Manual says “ Only replace the fuse(s) in the XPA Gen3 amplifier with fuse(s) of proper value and voltage rating.” It’s certainly possible this is boilerplate language held over from previous models, but if it were me, I’d make sure before sending it back — a phone call would be your best bet. If you’re comfortable doing such things, unplug both of the amps and let them sit for a while, then carefully remove the top cover and visually inspect the inside looking for fuses, loose connectors, or anything unusual — you shouldn’t need to touch anything. Flip the amp over and do the same with the bottom plate, try to use the correct size screwdriver so you don’t damage or scratch the screws. If you’re not comfortable, and there’s no confirmation here that there are no fuses, maybe you can find a local shop or friend who can do this for you. You’re a bit late to the party and really need to read the rest of the thread.
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KeithL
Administrator
Posts: 9,966
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Post by KeithL on Aug 10, 2021 12:50:16 GMT -5
That's an interesting conclusion... but, unfortunately (or not), it isn't necessarily correct. There's a lot more involved than the total number of parts... You need to factor in things like the reliability of each part and how they are used in the circuit...
(In our experience the new SMPS has proven to be more reliable than our older linear power supplies... at least in the XPA amps.)
(And I'm not going to even get into how many different factors affect distortion... bu there are a lot of different factors involved there too.)
Switching power supply = less reliability. Why? Because of increased complexity and increased number of components! SWPS is also responsible for those less than ideal distortion results. At least in a power amp, no SWPS for me!
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