UPA-1 just killed my tweeter on my LSi15 :( - Blu-ray Forum

BLindsay · 02-16-2013, 05:03 PM

well my venture into power amps is short lived. Got my UPA-1s last night and they worked great last night, turned them on today and there was horrible feedback on one of my speakers (regardless of the volume knob) and it ended up frying one of the tweeters on my LSi15's and the amp now sounds like burning electronics

Do you guys know if polk will just ship me a tweeter as I don't want to ship that speaker lol.

Yungheat · 02-16-2013, 05:07 PM

Quote:

Originally Posted by BLindsay

well my venture into power amps is short lived. Got my UPA-1s last night and they worked great last night, turned them on today and there was horrible feedback on one of my speakers (regardless of the volume knob) and it ended up frying one of the tweeters on my LSi15's and the amp now sounds like burning electronics

Do you guys know if polk will just ship me a tweeter as I don't want to ship that speaker lol.

What's ups-1

BLindsay · 02-16-2013, 05:08 PM

Quote:

Originally Posted by Yungheat

What's ups-1

Emotiva UPA-1 power amp

BLindsay · 02-16-2013, 08:06 PM

So I posted this on the polk forums and emotiva as well, and not surprisingly enough the consensus on each forum is to blame the other one.

What do you guys think is the likely cause knowing that

1. There is no way I turned it up too loud (even if you don't believe me assume this is the case, because it is)
2. amp smells like burning electronics really bad

my money is on the amp

Clark Kent · 02-16-2013, 08:13 PM

If the system was wired properly, it was likely the amp. Check your connections for a short somewhere.

BLindsay · 02-16-2013, 08:17 PM

Quote:

Originally Posted by Clark Kent

If the system was wired properly, it was likely the amp. Check your connections for a short somewhere.

yeah after I unplugged power from everything I went down every wire and it was fine, I put my mains back on the onkyo and everything is working again less the tweeter.

I am going to swap the tweeters to see if its the tweeter or the crossover and then go from there.

BLindsay · 02-16-2013, 09:58 PM

small update: both the crossover and the tweeter are shot on the left channel

Silo5 · 02-16-2013, 11:50 PM

Quote:

Originally Posted by BLindsay

well my venture into power amps is short lived. Got my UPA-1s last night and they worked great last night, turned them on today and there was horrible feedback on one of my speakers (regardless of the volume knob) and it ended up frying one of the tweeters on my LSi15's and the amp now sounds like burning electronics

Do you guys know if polk will just ship me a tweeter as I don't want to ship that speaker lol.

After looking at your posts in the Emotiva thread, I saw that you bought the UPA-1s used locally. How sure are you that the UPA-1s were working properly? I hate to say it, but the person that sold them to you may have been having problems with them and decided to sell them. Hopefully, that is not the case but it does seem suspicious that one of them fried out shortly after you bought them.

BLindsay · 02-17-2013, 12:01 AM

Quote:

Originally Posted by Silo5

After looking at your posts in the Emotiva thread, I saw that you bought the UPA-1s used locally. How sure are you that the UPA-1s were working properly? I hate to say it, but the person that sold them to you may have been having problems with them and decided to sell them. Hopefully, that is not the case but it does seem suspicious that one of them fried out shortly after you bought them.

Well they did work the night before fine, I def. see your point though I just like to give the benefit of the doubt.

they are under warranty still though so I will send it to emotiva

Silo5 · 02-17-2013, 01:34 AM

Quote:

Originally Posted by BLindsay

Well they did work the night before fine, I def. see your point though I just like to give the benefit of the doubt.

they are under warranty still though so I will send it to emotiva

Glad to hear that they are still under warranty! Have you contacted them about your crossover & tweeter to see if they cover that as well? I figured if the amp cause damage to your speaker, that they might take care of the damage to your speaker.

BLindsay · 02-17-2013, 01:41 AM

Quote:

Originally Posted by Silo5

Glad to hear that they are still under warranty! Have you contacted them about your crossover & tweeter to see if they cover that as well? I figured if the amp cause damage to your speaker, that they might take care of the damage to your speaker.

I will inquire, as long as one of them fixes it I don't care who lol.

Both companies are not available for support over the weekend so ill have to wait till Monday (or maybe Tuesday due to the holiday)

callas01 · 02-17-2013, 02:53 AM

sorry to hear about your luck there. but yeah it sounds like a bad amp.

are your speakers under warranty as well?

BLindsay · 02-17-2013, 02:55 AM

Quote:

Originally Posted by callas01

sorry to hear about your luck there. but yeah it sounds like a bad amp.

are your speakers under warranty as well?

yeah the speakers are only a few weeks old lol :/ and they were purchased new through an authorized dealer that sells via amazon

solarrdadd · 02-17-2013, 03:16 AM

sorry to hear about it, but, the bottom line for you is that both items are under warranty and should be repaired by the respective companies.

while the emotiva repair should cost you nothing (they will cover the shipping if it's defective under warranty) but, you will have to shell out for polk. of course, if your luck, they may just send you the crossover & tweeter.

of course, given the brand of the speaker and their cost, they may want you to mail the entire speaker back to them. most likely at your own cost.

keep us posted.

Remo · 02-17-2013, 04:13 AM

How come every one is so quick to blame the amp. Maybe the crossover was bad, fried the tweeter and hurt the amp.

I don't think that notion is to unbelievable. The LSi15 is 4 ohm speaker, maybe bad components couldn't protect the tweeter and caused the ohms to drop below what the UPA could deal with.

What ever the cause may have been its a crappy situation, I feel for you BLindsay. Hopefully between Emotiva and Polk your situation can be resolved in a timely fashion.

deltadube · 02-17-2013, 04:25 AM

Quote:

Originally Posted by Remo

How come every one is so quick to blame the amp. Maybe the crossover was bad, fried the tweeter and hurt the amp.

I don't think that notion is to unbelievable. The LSi15 is 4 ohm speaker, maybe bad components couldn't protect the tweeter and caused the ohms to drop below what the UPA could deal with.

What ever the cause may have been its a crappy situation, I feel for you BLindsay. Hopefully between Emotiva and Polk your situation can be resolved in a timely fashion.

think your right...

deltadube · 02-17-2013, 04:31 AM

Quote:

Originally Posted by BLindsay

Emotiva UPA-1 power amp

blingsay you left out that you bought refurbished amps..

i like brand new stuff..

and your speakers have a bad history of blown tweeters...

rock, stone · 02-17-2013, 05:51 AM

Quote:

Originally Posted by deltadube

blingsay you left out that you bought refurbished amps..

i like brand new stuff..

and your speakers have a bad history of blown tweeters...

Well, the UPA-1s haven't been available new for a good while now, so they would have had to have been used. So it wasn't exactly missing information.

I like delicious waffles.

Good luck with the fix!

Remo · 02-17-2013, 02:20 PM

Quote:

Originally Posted by rock, stone

Well, the UPA-1s haven't been available new for a good while now, so they would have had to have been used. So it wasn't exactly missing information.

I like delicious waffles.

Good luck with the fix!

mmmmm waffles , just like pancakes but with syrup traps!

BLindsay · 02-17-2013, 02:36 PM

Quote:

Originally Posted by deltadube

blingsay you left out that you bought refurbished amps..

i like brand new stuff..

and your speakers have a bad history of blown tweeters...

can you stop misspelling my name on 2 forums now please

02-16-2013, 05:03 PM	#1
BLindsay Power Member Top ranked HT gallery Top contributor Member since:Aug 2008 Location:MA Home Theater Gallery:59 4K collection:9 Blu-ray collection:25 Trading Score:12	UPA-1 just killed my tweeter on my LSi15 :( well my venture into power amps is short lived. Got my UPA-1s last night and they worked great last night, turned them on today and there was horrible feedback on one of my speakers (regardless of the volume knob) and it ended up frying one of the tweeters on my LSi15's and the amp now sounds like burning electronics Do you guys know if polk will just ship me a tweeter as I don't want to ship that speaker lol.

02-16-2013, 08:06 PM	#4
BLindsay Power Member Top ranked HT gallery Top contributor Member since:Aug 2008 Location:MA Home Theater Gallery:59 4K collection:9 Blu-ray collection:25 Trading Score:12	So I posted this on the polk forums and emotiva as well, and not surprisingly enough the consensus on each forum is to blame the other one. What do you guys think is the likely cause knowing that 1. There is no way I turned it up too loud (even if you don't believe me assume this is the case, because it is) 2. amp smells like burning electronics really bad my money is on the amp

02-16-2013, 08:13 PM	#5
Clark Kent Blu-ray Prince Top contributor Member since:Oct 2007 Location:Metropolis Blu-ray reviews:2 Trading Score:184	If the system was wired properly, it was likely the amp. Check your connections for a short somewhere.

02-16-2013, 09:58 PM	#7
BLindsay Power Member Top ranked HT gallery Top contributor Member since:Aug 2008 Location:MA Home Theater Gallery:59 4K collection:9 Blu-ray collection:25 Trading Score:12	small update: both the crossover and the tweeter are shot on the left channel

02-17-2013, 02:53 AM	#12
callas01 Blu-ray Prince Top contributor Member since:Jun 2008 Location:Riverside, CA Home Theater Gallery:42 Blu-ray collection:230 DVD collection:47	sorry to hear about your luck there. but yeah it sounds like a bad amp. are your speakers under warranty as well?

02-17-2013, 03:16 AM	#14
solarrdadd Blu-ray Prince Top ranked HT gallery Member since:Jul 2008 Location:Virginia Home Theater Gallery:255 4K collection:209 Blu-ray collection:1344 DVD collection:4 Blu-ray reviews: 42 Trading Score:316	sorry to hear about it, but, the bottom line for you is that both items are under warranty and should be repaired by the respective companies. while the emotiva repair should cost you nothing (they will cover the shipping if it's defective under warranty) but, you will have to shell out for polk. of course, if your luck, they may just send you the crossover & tweeter. of course, given the brand of the speaker and their cost, they may want you to mail the entire speaker back to them. most likely at your own cost. keep us posted.

02-17-2013, 04:13 AM	#15
Remo Expert Member Member since:Jan 2012 Location:Michigan Home Theater Gallery:12 Blu-ray collection:248 DVD collection:24 Trading Score:73	How come every one is so quick to blame the amp. Maybe the crossover was bad, fried the tweeter and hurt the amp. I don't think that notion is to unbelievable. The LSi15 is 4 ohm speaker, maybe bad components couldn't protect the tweeter and caused the ohms to drop below what the UPA could deal with. What ever the cause may have been its a crappy situation, I feel for you BLindsay. Hopefully between Emotiva and Polk your situation can be resolved in a timely fashion.

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