What's a Blowen tweeter?
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I have been reading the Audiogon forums for quite some time and ocassionally have had to ask some questions but there are a few of you out there that play games and treat these people that ask questions like morons, why don't you just stop all the crap and if you cannot answer them correctly or help them with their problem, don't respond at all. Now we are going to harass this person with the blown tweeters in his Wilson speakers because he made a typo!!!!!!!!!!!
I own a pair of Sophia 2s. More than likely your tweeters are ok. There are resistors that protect all of the drivers in Wilson speakers. For the tweeter, the resistors are located on the bottom of the Watt underneath the access panel. You will need to call your local dealer, because these are very specific, and unfortunately expensive resistors. If you are under warranty, they should be covered.
Thanks A'b'guy,for helping get some of these responders straight. A bad tweeter on a Wilson speaker or on any speaker just isn't all that funny; if it happens to be 'your-speaker'. Guess there is no shortage of morons on the board here--?? I know, everybody has a different sense of humor and many of us have different capabilities in spelling but AUDIO should be the #1 focus here;belittling should come in at 1204 or thereabouts.
Your key problem, as I understand it, is that this has happened twice....
It is highly likely that you are overdriving your amplifier and then burning up the voice coil or protective resistor(if there is one) on your tweeter.
This happens when you have the music too loud and at which point the bass (requires ooodles or power) draws too much power for your amp to deliver. The amp flatlines or clips...this will burn up everything but usually burns the tweeter first as it requies the least power and can get very hot very fast with a saturated distorted/signal.
It is not the power rating of your amp that is important but whether it is over driven or not. A lower powered amp will run out of power, saturate and clip more easily than a higher powered amplifier. A lower powered amp may actually be more dangerous for your tweeters than a higher powered amp if you like to listen loud. Clean power is good. Sustained distorted power does damage quite quickly.
If the above des not help and you have a very powerful amplifier then it is possible (but unlikely) that the amplifier has a problem affecting BOTH channels.
Note that music from a most top quality consumer systems will not sound loud until it distorts (at which point you risk doing damage).
There are very few consumer systems that can play deafeningly loud without distortion. These systems are usually adapted for or from professional gear.
So as a general advice => if it sounds loud then you probaby have distortion and need to be careful.
As further general advice => music with very heavy bass content is what taxes the amplifier most ...if you enjoy thunderous bass then be more careful or get some pro gear (often with built in soft clipping protection circuitry).
Another suggestion: Tube amps may be less likely to do damage than an SS amp due to the tubes high output impedance and tendency to soft clip. Although tubes generally have lower power ratings to start with.
G'luck and sorry you had these problems but it really not that uncommon especially if you realize that drivers "compress" sound as they heat up (a few minutes of play)....this has a tendency to make people inch up the volume to regain dynamic range and loudness that is lost due to compression => a vicious circle leading to eventual speaker failure.
Any company that charges $20k+ for loudspeakers should bend over backwards to solve any issues experienced by their customers. The solution should be comprehensive, and it should completely eliminate any reason or need an owner might have for searching for answers in a discussion forum.
IMO, Wilson should send a repairman in an official Wilson jumpsuit right to the front door of the owner to repair the speakers and troubleshoot the problem.
No sarcasm intended. Wilson markets their product as the Rolls Royce of audio loudspeakers, and they should provide service at the same level.
Yes, you should absolutely contact a Wilson Audio Dealer. Wilson Audio should keep speakers serial numbers and perfomance parameters on file so thay they can get you drop in replacements. Also they should be able to replace the resistors if that is your problem. As Shadorne put it you are most likely overdriving your amp causing clipping. You may want to buy a bigger amp or back off the volume control.
That's a good point Tvad. Although not all high end company's provide what most would consider good service or warranty. Take Ferrari for example, they only give a 3 month or one year warranty on their new cars not the typical 3 year 36k mile.
If someone here can't take a little ribbing for making a typo, they should get a sense of humor. I am not accussing Duanea of that.
What I don't understand is why a lot of people here on the Gon ask questions that would be best answered by the manufacturer or a dealer.
Now we are going to harass this person with the blown tweeters in his Wilson speakers because he made a typo!!!!!!!!!!!well, ok. But geez, there's nothing mean-spirited here, and Duane has been on this board for years,posted regularly, is always articulate, and without typos, so it's not like he has any reason to be hurt.
Can't we have a little fun?
I replaced the diaphragms/voice coil on a friends WP7’s because of a Class-D Nuforce 9se v3 amps VHF switch-on squeal that you can hardy hear, but can be measured, both voice coils were very blue with heat, they were standard Seas, Scan or similar from memory, diaphragm/coil were about $50 each. took about an hour each to do.
V. Old thread but this is a common problem. Ferrofluid dries out after as little as two years and tweeters burn up easily. The biggest culprit is amplifier clipping or HF instability in Class D type amps - usually the clipping is caused by overly demanding bass but the damage goes straight to the tweeter which heats up very fast when clipping. The second biggest culprit is consumer speakers being overdriven - most speakers can’t do more than 95 dB SPL for very long before becoming severely stressed.