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I've had a pair of Dynaudio BM16'as for about two years. A few weeks ago I turned them up pretty loud, to where the red dot was flashing, but only for a moment or two (I've done this before, once, maybe twice, and they've just turned themselves off) One of them has since developed a serious buzz, and the other one has a very slight buzz. I thought maybe it was interference of some sort, but I've moved them around the room etc. and the problem persists. Any ideas what in the world this could be? Surely I didn't ruin them just by turning them up really loud? Thanks!
Had it happen to a pair of 17W75's. -I cut the dust caps off, reshimmed, reglued and installed new dust caps 4 years ago and all is well still.
-I doubt you burned the voice coils.
If they are damaged and have protection then they are not protected well
There should be a certain safety factor and the protection should
kick in well before damage occurs
If you want more output I might suggest two things
1. Get more power
2. Get full range floorstanding loudspeakers that will put out the decibals you require for enjoyment with no strain
the level at which they should be played. When a speaker or amp, etc. goes into protect mode, you can be sure you're pushing it too hard. You simply ignored that fact and paid the price for it. When you consistently over-drive a component or speaker you invite failure. In the future, consider such lights as abuse warnings, not invitations to excess.
I didn't see any BM16A's on the Dynaudio site; is it possibly the BM6 you mean? Anyway, the BM range seems to be a "nearfield" monitor. Possibly no one had ever explained this to you...They are to be used in an entirely different way than an like a passive monitor speaker for a stereo system. Nearfield means you're sitting up close, within a couple feet, almost like a computer screen. You certainly would not blast the speakers to their breaking point in such a set up. If you are doing that you are acting very foolish and are authentically hurting your hearing. If you used these speakers as stereo speakers for a room and were listening from 12-15 feet or more away from them, then they were not used for the proper purpose, and you simply over-drove them. If you did this unintentionally, then our sympathy; we've all made audio mistakes over the years. What you want is a good passive monitor. These also can be over-driven by a stereo, but they're built for the specific purpose for which it seems you were trying to use these.
The other concern which should be mentioned is the damage to your ears. I'm not saying that this one incident directly caused damage to your hearing, but repeated use of the system at higher dBs certainly can. If you're breaking speakers from operating them past their safety zone, then I would suspect you are a candidate for hearing damage from listening at too high levels. You might not give a d--n now, but trust me, you will in about 25 years, when you need to start wearing hearing aids prematurely.
Yes, you broke them; the question now is whether they are worth fixing. If you can do the repair, then they might be worth salvaging.
Wow. Someone is making A LOT OF ASSUMPTIONS.
Some audiophiles are very hard on speakers while others are not. You seemed like you were inviting discussion based on your incredulity that the speakers failed. :)
No problem at all. I usually listen to them at a very reasonable level, and they fill the room I have them in quite nicely (about 6' from my listening position). I'm using them with a DAC1USB setup. It's just this one time I turned them up a bit loud for a few secs and whammo. Not my usual modus operandi;)
You said, the volume was "pretty loud." How loud is "pretty loud" ? How far did you really turn that knob?
It strikes me that you're intent on playing audio Russian roulette with your speakers, which makes no sense.
You did indeed. That buzzing is likely a voice coil rubbing along the magnet gap, caused by distorted-in-shape coil former due to the over-driven speaker. Running your cars' engine past its' Redline can blow its' motor too.
I did this for only a few seconds. Maybe 10 or twenty. Also, just referred to the user manual and it states... "The left indicator is a true clip indicator and lights when the low frequency amplifier clips. It is acceptable to run the system with this lighting occasionally but avoid running the system with the lighting most of the time".
Same with car engines, sometines you can get away with it & other times you cannot. Also depends on prior use/stress as to when/if that straw breaks the camels' back. If they have foam cone surround suspension, that may be the problem. Removng the grills & gently pushing inwards on cones will discover which is the culpret.
If the light goes on indicating that the signal is "clipping," I can see where damage can occur to your speakers, even if it's a brief moment. This damage may occur when the clipped source causes the speaker VC to "freeze" for a moment (where the peaks of the sine wave is chopped off). This may cause mis-alignment or thermal damage to the VC (or both). Anyhow, seen this happen when ppl put hi-fi speakers into guitar amp cabinets. I think the tighter tolerances of hi-fi speakers makes them more succeptible to damage from clipping.
When I take a guitar-amp designed speaker apart, they tend to have bigger gaps between the VC and the permanent magnet. I think this makes the speaker able to work even after heavy abuse from a clipping amp. Just a WAG...
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