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Post by JKCashin on Jul 1, 2020 22:22:38 GMT -5
So.... I just fried my new B1+ speakers... and it's totally my own fault. Sigh. I am hoping Emotiva will let me buy the tweeters and replace them myself! Myself and two friends were comparing our hearing... one guy said his hearling only went to 10K and I was sceptical. We tested. His goes to 11,300... other friend 12,500.... and mine, well at the same SPL goes to 14,500, but If I turn up the amp, a lot, I can hear to 16,400! But it never ocurred to me that running the speakers at high SPL at 16-17K would be a bad idea... I should have known!  So my question is... with the XPA-10 having 4 high power channels, and 6 lower power channels, should I avoid the high power ones once I get the speakers repaired? I mean, I will be running sweeps to calibrate them! |
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Post by boomzilla on Jul 1, 2020 22:26:36 GMT -5
OUCH! I saw a salesman in an audio store do the same thing with the tweeters in some Advent speakers. I had to point out to him that smoke was coming from the tweeters - literally.
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Post by JKCashin on Jul 1, 2020 22:40:58 GMT -5
Yeah I just wrote Emotiva to see what we can do about a repair. So pissed off at myself right now.
Should I be concerned about this under normal use cases, normal of course including sweeps for REW and Dirac, when you consider I was drivind them with a XPA-TEN with the high power modules?
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Post by creimes on Jul 2, 2020 0:01:32 GMT -5
I had a tweeter go on me in one of my T1, and it wasn't from extreme volumes, I sometimes like it on the louder side but nothing out of the ordinary, i figured it was a defective unit, I only noticed it as my sound seemed off, I can't see my speakers unless I remove my screen, I found the tweeter in my right T1 had failed, they sent me a replacement and since it has been good. Mine looked the same as yours, the tweeters should be able to handle quite a bit of power, if anything under powering speakers will more than less damage a speaker, While these Airmotiv speakers do sound very good I'm not certain on the quality, I mean crap happens to anything, I owned some Monitor Audio RX6 towers for about 4 years and those things got played loud at times and never had one issue, I don't listen as loud these days as I have kids now haha.
Did you burn both tweeters ?
Mine was pretty bad, and I don't have the volume anywhere near extreme levels, as usual Emotiva's customer service was great and they sent me a new one, my buddy on the other hand plays his system at uncomfortable levels and one of his tweeters fried in his Energy tower, but I was expecting that to happen.
Chad
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KeithL
Administrator 
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Post by KeithL on Jul 2, 2020 0:04:43 GMT -5
The tweeters themselves aren't especially "susceptible" to very high frequencies. The problem is that, since our hearing is not especially sensitive to them, it's easy to turn them up too high, for too long, without noticing. The sweeps only "hit" each driver, on each individual speaker, for a short period of time.
So, as long as the sweeps aren't killing your ears at lower frequencies, I wouldn't expect them to be especially dangerous to tweeters.
HOWEVER, I would also remind everyone that tweeters, and especially folded ribbons, have a significant diaphragm mass. This means that they will warm up, and potentially overheat, over time. When you run a calibration set each speaker plays the sweep in turn... Therefore the tweeter in any one speaker isn't actually playing any particular range of frequencies for very long during each run...
(And each speaker is "resting" while all the others are playing.) So playing a normal calibration run really doesn't subject any one driver on any individual speaker to much power for very long.
(It's actually closer to what you would expect when playing normal music.)
But playing a sweep over and over again, from a single speaker, is far more stressful than doing a normal calibration... And manually playing a single test tone continuously, for any length of time, at high levels, from a single speaker, is really abusive. ( I should also point out something else about doing "ear tests" using speakers. In an actual room you often encounter cancellations at very specific locations at higher frequencies. This occurs due to a combination of "wavelength cancellations" like you get with subwoofers... but it also happens because certain frequencies can end up being almost entirely absorbed by things like rugs and wall coverings... resulting in what are essentially "dead spots" at certain locations at those frequencies. As you move your
head around the sound tends to "come and go" in different spots at different frequencies. Unfortunately, this also means that, if you
happen to be at one of those nulls, you can end up cranking the power on the amp up REALLY high... without its seeming very loud...
and this is an easy way to fry tweeters. )
So.... I just fried my new B1+ speakers... and it's totally my own fault. Sigh. I am hoping Emotiva will let me buy the tweeters and replace them myself! Myself and two friends were comparing our hearing... one guy said his hearling only went to 10K and I was sceptical. We tested. His goes to 11,300... other friend 12,500.... and mine, well at the same SPL goes to 14,500, but If I turn up the amp, a lot, I can hear to 16,400! But it never ocurred to me that running the speakers at high SPL at 16-17K would be a bad idea... I should have known! So my question is... with the XPA-10 having 4 high power channels, and 6 lower power channels, should I avoid the high power ones once I get the speakers repaired? I mean, I will be running sweeps to calibrate them! |
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Post by SteveH on Jul 2, 2020 8:59:58 GMT -5
So.... I just fried my new B1+ speakers... and it's totally my own fault. Sigh. I am hoping Emotiva will let me buy the tweeters and replace them myself! Myself and two friends were comparing our hearing... one guy said his hearling only went to 10K and I was sceptical. We tested. His goes to 11,300... other friend 12,500.... and mine, well at the same SPL goes to 14,500, but If I turn up the amp, a lot, I can hear to 16,400! But it never ocurred to me that running the speakers at high SPL at 16-17K would be a bad idea... I should have known! Was everyone sober??? These kinds of things usually take place under the influence. The last three words before something goes wrong, "Hold my beer!" |
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Post by creimes on Jul 2, 2020 9:09:48 GMT -5
So.... I just fried my new B1+ speakers... and it's totally my own fault. Sigh. I am hoping Emotiva will let me buy the tweeters and replace them myself! Myself and two friends were comparing our hearing... one guy said his hearling only went to 10K and I was sceptical. We tested. His goes to 11,300... other friend 12,500.... and mine, well at the same SPL goes to 14,500, but If I turn up the amp, a lot, I can hear to 16,400! But it never ocurred to me that running the speakers at high SPL at 16-17K would be a bad idea... I should have known! Was everyone sober??? These kinds of things usually take place under the influence. The last three words before something goes wrong, "Hold my beer!" Hey bro, this is Canada and weed is legal, 16,000hz never sounded so good man  |
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Post by JKCashin on Jul 2, 2020 16:23:35 GMT -5
So.... I just fried my new B1+ speakers... and it's totally my own fault. Sigh. I am hoping Emotiva will let me buy the tweeters and replace them myself! Myself and two friends were comparing our hearing... one guy said his hearling only went to 10K and I was sceptical. We tested. His goes to 11,300... other friend 12,500.... and mine, well at the same SPL goes to 14,500, but If I turn up the amp, a lot, I can hear to 16,400! But it never ocurred to me that running the speakers at high SPL at 16-17K would be a bad idea... I should have known! Was everyone sober??? These kinds of things usually take place under the influence. The last three words before something goes wrong, "Hold my beer!" God no!! Canada Day. Like Independance Day but with more beer and bacon, and less flags. |
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Post by JKCashin on Jul 2, 2020 16:24:19 GMT -5
So looks like Emotiva is going to let me purchase the tweeters and have them replaced. This is good news IMHO.
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Post by MusicHead on Jul 2, 2020 19:33:30 GMT -5
So looks like Emotiva is going to let me purchase the tweeters and have them replaced. This is good news IMHO. If you know how to use a screwdriver and have a bit of care in handling the new tweeters, it should be a piece of cake. Unless of course you do it on Canada Day 🤣🤣🤣 |
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Post by audiobill on Jul 3, 2020 5:08:45 GMT -5
Never really subscribed to the view that “ you can’t have too much power”, although I run a minimum of 630 High quality wpc. It’s there for headroom, not volume.
Be more concerned about the condition of your ears than tweeters, and you’ll enjoy music longer.
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Post by JKCashin on Jul 7, 2020 17:26:43 GMT -5
Update: Emotiva has come through for me! To save me some money they will ship the tweeters out with my new XMC-2, saving me brokerage fees and shipping!
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Post by frenchyfranky on Jul 8, 2020 9:23:46 GMT -5
Update: Emotiva has come through for me! To save me some money they will ship the tweeters out with my new XMC-2, saving me brokerage fees and shipping! Really nice move from them. |
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Post by 405x5 on Jul 8, 2020 10:54:40 GMT -5
The Emotiva Loudspeakers:
Any built in overload protection in those puppies??
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Post by donh50 on Jul 8, 2020 13:33:24 GMT -5
A few speakers have fuses but most do not these days.
Re. power -- you can fry a tweeter with little power, and underpowering and clipping fries them even faster, so I would not worry about placing the speakers on the high-power channels. Just keep the volume at reasonable levels and don't run test tones or pink noise for long periods (perhaps no more than a few seconds for tweeters).
Back in the primordial past college parties were a great source of income from speaker repairs. Especially lucrative were the frat parties when they hauled their "big" speakers out on the porch or back deck to blast the neighborhood. We could always count on an income surge at the end of rush week...
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Rybo
Minor Hero
Posts: 62 
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Post by Rybo on Jul 8, 2020 21:57:19 GMT -5
A few speakers have fuses but most do not these days. Re. power -- you can fry a tweeter with little power, and underpowering and clipping fries them even faster, so I would not worry about placing the speakers on the high-power channels. Just keep the volume at reasonable levels and don't run test tones or pink noise for long periods (perhaps no more than a few seconds for tweeters). Back in the primordial past college parties were a great source of income from speaker repairs. Especially lucrative were the frat parties when they hauled their "big" speakers out on the porch or back deck to blast the neighborhood. We could always count on an income surge at the end of rush week... Ha, yeah, this brought back memories from way back. In college I did a little DJ'ing with Mirage floorstanders (SM 2.5s maybe?) and a Haffler amp/pre-amp combo. Those speakers were supposed to be able to handle high wattage, but I blew those tweeters out repeatedly. I must have overdone the volume to higher distortion levels. Oddly enough, the local Radio Shack sold the exact same tweeters (at least they looked exact), so I was able to replace them each time. |
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Post by 405x5 on Jul 9, 2020 19:41:01 GMT -5
Never really subscribed to the view that “ you can’t have too much power”, although I run a minimum of 630 High quality wpc. It’s there for headroom, not volume. Be more concerned about the condition of your ears than tweeters, and you’ll enjoy music longer. Yes! Too much power might spare your tweets while sending Your mid and woofer cones out into the middle of the room. That being said....more with discretion is better than too little. |
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Post by 405x5 on Jul 9, 2020 19:47:25 GMT -5
The Emotiva Loudspeakers: Any built in overload protection in those puppies?? Oh well no one here knows if EMOTIVA Loudspeakers specifically have built in overload protection. |
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Rybo
Minor Hero
Posts: 62
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Post by Rybo on Jul 9, 2020 20:51:45 GMT -5
The Emotiva Loudspeakers: Any built in overload protection in those puppies?? Oh well no one here knows if EMOTIVA Loudspeakers specifically have built in overload protection. There's no mention of it in the manual, and there is no access to fuses or cabinet internals (without removing drivers). There is a 5-year warranty, however. |
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