XPA-1 JUST FRIED OUT!!

[oregonkiwi]

ok,thanks Lonnie.

[oregonkiwi]

Nov 22, 2010 22:01:58 GMT -5 ntrain42 said:

Nov 22, 2010 21:39:56 GMT -5 oregonkiwi said:

Ntrain42,thanks for your input/insight.
When you say'dedicated' circuit for each amp,do you mean two seperate hotpoints along the same wall,or some other definition(sorry,not too savvy on the tech speak)
Also,I am in a rental house,and cant go tearing into stuff.

Tom

If your in a rental house, then nothing you can really do I guess unless you get landlord's permission. Again, not saying line sag was the culprit. Just 2 power hungry amps on one line is not something I would ever do, especially if your cranking those MG12's to loud volume.

Well,honestly,was not up loud at all,not a high tech movie needing all the boom and bang,had volume at about 8 oclock on dial.

[oregonkiwi]

Nov 22, 2010 21:39:35 GMT -5 strindl said:

I don't think it's an electrical issue with your house circuit. I have my two XPA-1's on one 15 amp circuit..they drive very inefficient 4 ohm Thiels and I've never had an issue with that. The power for them goes through an Adcom ACE-515 power enhancer.

I have all of my other audio gear for that system running through a single APC H15 power conditioner on a single 20 amp circuit. There are three power amps running at a time there..an XPA-5 with the same 1200 VA transformer as in the XPA-1, along with a Threshold SA/4e with a pair of big honking toroidal transformers, plus a Threshold S 200.

Also on that same APC power box is an Integra DHC 9.9 pre amp processor, a Threshold T2 balanced pre amp with it's own separate power transformer box plus an Oppo Blu Ray player. You add all of those up and that's gotta be more than you had running through your circuit. I've never had a power issue with it.

My thoughts too.Had no trouble til now.
I had the whole system in another area when I first got it,no troubles there either.Moved it to new location about a month ago.
Worked great there as well,til tonight.
And yes,you have a lot more stuff pulling juice than mine.
I'm a 'conSERVative lil kiwi

[Deleted]

Nov 22, 2010 22:08:14 GMT -5 Lonnie said:

Nov 22, 2010 21:38:03 GMT -5 @chuckienut said:

That's weird. we had a similar incident up here in Washington State just about the same time there were reports of a strange UFO at night with bright blue lights. There was a pulsing sound that witnesses said sounded like:

Lonnie call home.....Lonnie call home.....Lonnie call home.....Lonnie call home.....Lonnie call home.....Lonnie call home

Now that is funny!

Thanks Lonnie! I thought nobody was going to appreciate my UFO humor. LOTR must be on downers tonight! ;D

[NorthStar]

^



;D

[sharkman]

Nov 22, 2010 21:12:54 GMT -5 oregonkiwi said:

Sharkman,had trigger from USP-1 to R XPA-1,Triggered to L XPA-1,then from there to ERC.
unhooked that per advice from Nick at emotiva,,then tried different config...same thing.
Now I am afraid to go to bed tonight...might be RISE OF THE MACHINES,and they'll git me while I sleep!!

So sorry to hear of the passing of your XPA-1. It sounds like the offending XPA was connected to the ERC and possibly causing it to trigger on as you described.

I'd say Emo will probably be fixing/replacing your amp, good luck!

[drtunes]

Your suppose to cook turkey for the holiday not the precious XPA-1,. On a more serious note any chance a drop of liquid could have dripped on to the case, you would be amazed at how much carnage a single drop in just the right place can cause on these modern circuit boards.

[rixtergonzo]

Nov 22, 2010 20:28:17 GMT -5 oregonkiwi said:

Now I have no system to listen to.

Sorry to hear. I know exactly how you feel not having a system to listen to. One of my XPA-1s crapped out on me on Veterans Day. As I turned it on that day I heard and saw sparks fly from within the XPA-1 and it went into the red. Everything disconnected and still red. I sent it back to EMO on an RMA for repair. Had it only 36 days. Sure was awesome those short 36 days.

[moodyman]

Nov 22, 2010 21:25:28 GMT -5 ntrain42 said:

XPA-1's with an easy 8ohm load should be on their own dedicated circuit. But a 4 ohm load with inefficient speakers, each should have its own dedicated line.

Hogwash...15amp line will be just fine. If he was drawing that much current his breaker would have tripped.

[NorthStar]

Nov 23, 2010 16:30:53 GMT -5 moodyman said:

Nov 22, 2010 21:25:28 GMT -5 ntrain42 said:

XPA-1's with an easy 8ohm load should be on their own dedicated circuit. But a 4 ohm load with inefficient speakers, each should have its own dedicated line.

Hogwash...15amp line will be just fine. If he was drawing that much current his breaker would have tripped.

Exactly!

[drtunes]

So what sparked in your XPA-1 after 36 days ::)That should not be happening

Nov 23, 2010 16:11:21 GMT -5 rixtergonzo said:

Nov 22, 2010 20:28:17 GMT -5 oregonkiwi said:

Now I have no system to listen to.

Sorry to hear. I know exactly how you feel not having a system to listen to. One of my XPA-1s crapped out on me on Veterans Day. As I turned it on that day I heard and saw sparks fly from within the XPA-1 and it went into the red. Everything disconnected and still red. I sent it back to EMO on an RMA for repair. Had it only 36 days. Sure was awesome those short 36 days.

[oregonkiwi]

Buggerit again.
Well,talked to Nick at emotiva.
His suggestion at process of elimination..unhook triggers to XPA 1 and see what happens.
Did that about 4 hours ago...turned everything on(except ERC-1) and played music at serious volumes through my Magnapan 12's,and now part way through INCEPTION movie at normal(read sane) level.
No issues as such,just the occasional click.
Still worried about the 'fried' electrics smell from last night,so I guess it was a trigger issue in the XPA causing not only it to overload,but perhaps is also why the ERC went wild,turning on and off at will repeatedly.What do you folks think?
I am certain that Nick will request I send it in for repair,and keep me happy.
Just bloody inconvenient.
Don't like being without tunes,and I had a great Pioneer receiver VS 902D I think it was,93-4 year that served well,was still like new cond,but had it fully serviced anyway and gave as gift to my pastor,and his family,so no HT,but....BUT.....I do have my vintage Luxman to fall back on to for two channel listening!! ;D heh heh heh
Nya ha ha

[oregonkiwi]

Nov 23, 2010 13:49:50 GMT -5 drtunes said:

Your suppose to cook turkey for the holiday not the precious XPA-1,. On a more serious note any chance a drop of liquid could have dripped on to the case, you would be amazed at how much carnage a single drop in just the right place can cause on these modern circuit boards.

No,no liquid,no booze,nothing.System is well away from potential 'accidents',but thanks for the thoughts
Tom

[oregonkiwi]

Update...
Had the two XPA-1's running last night a few hours untriggered,and now today so far about 2 hours so far,also the ERC-1 that was flipping out(turning off,on,off continuously very rapidly),but since disconnecting the triggers,I have not had any issues.
Something interesting though that I just remembered,and that is,that when I first bought the 2 XPA's,and the USP-1,one amp stopped turing on with the remote.
I fiddled around,switched trigger cables between amps,and then the other amp would not turn on.So,I had an extra cable left over in packaging,so switched out the 'offending' cable.
Had no further issues until the other night.
I just wonder if it is a bad trigger in that one XPA that first fried the original trigger cable,then just finally wigged out causing all the other issues...thoughts anyone?
Tom

[razel]

I too had a strange trigger issue. My receiver doesn't have a trigger out, but it does have a switched out. I sacrificed a 5v cell phone charger connected to the AC switched out, connected to the trigger in of my left XPA1, then the left XPA1 trigger out went to the right XPA1s trigger in.

While watching a movie, after 30 mins, the right XPA began to quickly turn on and off. I blamed myself and my pathetic wiring. I had to jerryrig both triggers from 30 year old mono wires. I redid the wiring and changed the strategy. Instead of daisy chaining one XPA to another, I fed both parallel from the cell phone charger.

All is well except one time. When I turned the system off, one LED the right XPA remained on, I turned the system on and off, the right XPA LEDs were all off, but then one LED on the left XPA turned on. Again I turned it on and off and it hasn't happened again since.

If it happens again, I'll tighten the duct tape on the wire twists.

[RPA-1 man]

I thought that most trigger circuits on audio gear were rated for 12vdc but there is a range of usable voltage say from 5 to 12 volts. Running the trigger of 2 amps from one 5 volt supply seems like it's running on the hairy edge. But if it's working for you go for it. Personally I wouldn't run anything less than 7 volts, especially if you're switching 2 devices. That's just my opinion though.

[oregonkiwi]

Nov 24, 2010 22:09:48 GMT -5 RPA-1 man said:

I thought that most trigger circuits on audio gear were rated for 12vdc but there is a range of usable voltage say from 5 to 12 volts. Running the trigger of 2 amps from one 5 volt supply seems like it's running on the hairy edge. But if it's working for you go for it. Personally I wouldn't run anything less than 7 volts, especially if you're switching 2 devices. That's just my opinion though.

Sorry,you have lost me.
I don't understand any of what you just said,forgive my ignorance.
I figured that triggers worked in just the same way
(or similar) to my old Pioneer Receiver that had 3 extra power sockets in the back to add other gear such as CD,VCR,DVD etc power cords ,that were turned on by turning on the receiver?
I figured that triggers(which incidentally I was ignorant of until I went to separates a few months ago) worked in just the same daisy chain way?
Help me out here?

[Tyler wants bass!]

worst comes to worst with triggers buy the emo trigger switch and plut it into the back of your reciever and always leave it in the on posistion.

[matt]

I second the Emotiva trigger suggestion. Not all DC adapters output clean DC. Some require regulation of current. Also, when current is on the threshold of the minimum required current, you may get rapid switching as the current may fluctuate above and below that threshold. Also, be very careful not to plug a trigger output into another trigger output. I think someone may have done that and it fried the trigger section, but the amp section remained operational.

Here is a 12v adapter that may work: www.sparkfun.com/products/9442

Also, here is a cheap oscilloscope that can be used to check the quality of the trigger signal, if you are interested in that kind of detail: www.sparkfun.com/products/9625

[oregonkiwi]

Thanks for the input.
The triggers to my XPA-1's,and ERC-1 were originated out of the Emotiva USP-1.
From USP-1 to 1st XPA,from there to second XPA and from there to the ERC-1.
Just the one XPA-1 was having the issue,and since I unplugged it,the ERC has not had on off issues,nor the offending XPA.
But,as previously stated,I am still concerned about the burned electronics smell a few days ago,but have to wait until Monday to call CS at Emotiva as to how to proceed with warranty etc.