bootman
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Typing useless posts on internet forums....
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Post by bootman on Mar 18, 2013 22:01:39 GMT -5
Don't really think it affects SQ much if at all. I have horn speakers so they get loud fast. The truthful answer is we won't totally know until you listen to a glitch free amp. I only hear the click with the amp at an idle. There is going to be some difference because the amp is switching out of class A "too quick", if this is audible I don't notice it. I am over fifty and I can't hear over 15-16 k hertz now. I hear (well actually I don't hear. lol) the same way. Personally I think class A amps shine the best in the bass/mid bass region. Current is great with woofers. tweeters don't need so much.
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bootman
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Typing useless posts on internet forums....
Posts: 9,358
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Post by bootman on Mar 18, 2013 22:02:17 GMT -5
Does this mean there will be some B-stock eventually....hmmmmm, I'll take 2 at $500 each hahhaaha I'll be in line for that.
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Post by milt99 on Mar 18, 2013 22:17:15 GMT -5
You're both dreamin'
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Post by cwt on Mar 18, 2013 23:41:01 GMT -5
Probably ; but what if the glitch was something simple like a wrongly rated capacitor forcing the a/b switch and the right one sent out as a diy or electrical contractor job ? That would save emo sending them back to China. Nah ;Ime dreamin too
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Post by ausman on Mar 19, 2013 1:03:55 GMT -5
might be bias adjustment though it makes me wonder if it is a solder problem on all contact points
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Post by sheepdog02 on Mar 19, 2013 1:54:30 GMT -5
I had received my XPA-1L pair on friday, and although I did experience the clicking issue as well when transitioning from Class A to A/B, I am very impressed about how quick they reacted to the problem as they were already up on the board and talking about the potential issue by the time I had mine hooked up. For my brief listening tests, I have really been enjoying the sound produced and will reluctantly ship them back, but maybe after just a few more hours/days of listening tests. Count me in the crew that was very impressed with how this was handled.
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Post by Jim on Mar 19, 2013 2:33:38 GMT -5
Does this mean there will be some B-stock eventually....hmmmmm, I'll take 2 at $500 each hahhaaha I'll be in line for that. Heck, even a XPA-1L that is just functioning in class A/B is still a sweet amp! It's just half of a XPA-1.... That's not shabby at all!
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Post by deltadube on Mar 19, 2013 4:15:06 GMT -5
I'll be in line for that. Heck, even a XPA-1L that is just functioning in class A/B is still a sweet amp! It's just half of a XPA-1.... That's not shabby at all! yeah but it clicks and is 3/4 the price.. for 1/2 the amp as you say no news on the fix yet.....
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Post by Jim on Mar 19, 2013 6:18:51 GMT -5
Its a 40db click. Not exactly deafening.
It hasn't even been 24 hours since they got it on the bench.... And they've been focused on their customers.
I imagine they'll post when they have time.
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Post by ocezam on Mar 19, 2013 7:01:23 GMT -5
Probably ; but what if the glitch was something simple like a wrongly rated capacitor forcing the a/b switch and the right one sent out as a diy or electrical contractor job ? That would save emo sending them back to China.Nah ;Ime dreamin too I've been wondering if they'd send them back. I'm under the impression that warranty work is performed in the States. I kinda thought something like this would be repaired here also. I guess it depends on exactly what's needed for the "fix", and exactly how many of them are in the states. Its a 40db click. Not exactly deafening. It hasn't even been 24 hours since they got it on the bench.... And they've been focused on their customers. I imagine they'll post when they have time. If I were in their shoes, my priority would be to get with China, halt production, and figure out what went wrong before more are created. After that I'd be concerned with customer communication and recalls. So far this has been handled extremely well, and quickly!
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Post by fsubales on Mar 19, 2013 7:20:29 GMT -5
All this makes me feel really good about 70% of my gear being Emotiva. Customer service at its best...!!!!
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cgolf
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Post by cgolf on Mar 19, 2013 9:59:40 GMT -5
I'm as fanboy about Emotiva as they get so don't take this question wrong. And maybe it has already been answered somewhere in the last 40 pages of posts. ;D
How did this issue get by QC and all the tests that they run on these amps before release? It's apparantly something that appears immediately. Just seems strange that it wasn't heard or caught by someone in China or on staff in test.
Just wondering why it never happened there but it happened with the first units that shipped?
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Post by garbulky on Mar 19, 2013 10:20:50 GMT -5
Honestly, I think it's the size of the company....
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Post by crashcarruthers on Mar 19, 2013 10:41:44 GMT -5
If music was playing at 80db you won't hear the "click" that is 40db quieter. The main indicator that the amp has switched to A/B mode out of class A mode is the reduced current draw. This happened on my set at approximately nine minutes in idle mode and a soft "click"(40db) happens at the same time. Dark Ranger found this while testing current draw at an idle. I was able to repeat this in my set also. If playing music SQ is not really noticeable changed, but current draw go from approximately 200 watt to about 80 watt. What I like they called me before I even had a chance to contact Emotiva. How many corporation you know would do that?
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Post by Jim on Mar 19, 2013 10:43:22 GMT -5
How did this issue get by QC and all the tests that they run on these amps before release? It's apparently something that appears immediately. Just seems strange that it wasn't heard or caught by someone in China or on staff in test. Just wondering why it never happened there but it happened with the first units that shipped? Who knows.... We could speculate about that all day. The malfunction is something that you'd have to both listen carefully for, and watch the current draw.. I think their QC is normally very high, based on the lack of repairs for most amps.
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Post by deltadube on Mar 19, 2013 10:51:55 GMT -5
If music was playing at 80db you won't hear the "click" that is 40db quieter. The main indicator that the amp has switched to A/B mode out of class A mode is the reduced current draw. This happened on my set at approximately nine minutes in idle mode and a soft "click"(40db) happens at the same time. Dark Ranger found this while testing current draw at an idle. I was able to repeat this in my set also. If playing music SQ is not really noticeable changed, but current draw go from approximately 200 watt to about 80 watt. What I like they called me before I even had a chance to contact Emotiva. How many corporation you know would do that? sure i would agree totally that emotiva is doing the best they can and looking after there customers by communicating with them and being very honest about putting out a quality product. i like that alot.. so you cant hear the click if your listening at 100db plus
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KeithL
Administrator
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Post by KeithL on Mar 19, 2013 11:00:02 GMT -5
It's pretty simple really..... Designs are tested by prototype (at that stage you watch everything pretty carefully)... and this didn't happen in any of the prototypes. When the production run arrives, we pull a sample and test them (again watching carefully), and it didn't happen with any of the test samples. We don't actually unpack and run every production unit here and, even if we did, unless we ran them for a half hour each and monitored ALL the parameters, it wouldn't show up. (The sound doesn't especially change so, really, unless you happen to be watching the power meter, you won't notice it. The XPA-1L would cheerfully pass the full AP test - even with the issue - so it's really something that's pretty hard to notice unless you're looking for it.) I'm as fanboy about Emotiva as they get so don't take this question wrong. And maybe it has already been answered somewhere in the last 40 pages of posts. ;D How did this issue get by QC and all the tests that they run on these amps before release? It's apparantly something that appears immediately. Just seems strange that it wasn't heard or caught by someone in China or on staff in test. Just wondering why it never happened there but it happened with the first units that shipped?
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Post by Jim on Mar 19, 2013 11:04:41 GMT -5
The XPA-1L would cheerfully pass the full AP test - even with the issue - so it's really something that's pretty hard to notice unless you're looking for it.) "Still pass the full AP test" is quite interesting. Keith - Are you guys at a point where you can comment on what is actually wrong?
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Bruce
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Post by Bruce on Mar 19, 2013 11:07:21 GMT -5
Honestly, I think it's the size of the company.... This happens all the time with Onkyo,Denon,Sony and all the BIG companies.Emotiva has grown a lot in the past 3 years and they sell many products so I would guess they grow some failures are going to happen in QC.The have handled this quite well.
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Post by audiophill on Mar 19, 2013 11:10:02 GMT -5
Emotiva definitely has great customer support! I boxed my xpa-1l's back up and will be sending them back soon. I wish i could listen to them more but one of the xpa-1l's has suffered something more than prematurely switching from class a to class a/b. One of the two suddenly started emitting a very loud high pitch screaming type sound. I shut it off immediately waited a while turned it back on and still very loud screaming sound. I switched all connections to the other xpa1-l and all was fine. Switched connections back to the "screaming xpa-1l and it still emitted the horrible high pitch scream. I then tried switching into balanced with the rear switch and it was still doing it. I then disconnected the input completely and even with no source going into it it still "screamed." Anyway there is definitely something else wrong with that unit. I used it about 8 hours until that happened. I'm sure Emotiva will resolve the issues with these amps! Customer service was super fast and very polite! I will be a lifetime customer! Sh*t happens sometimes i guess, but i am glad i was able to still sample these amps. After all this said they really did sound terrific before the one xpa1-l went bad. Both amps also suffered from the premature switching from a to a/b.
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