Guys,
Last Friday gig one of my tops just go dull, so I noticed and when in front of the cabinet, I immediately knew what happened, I lost the HF driver.
The tops are :
Yammy DSR112, the plate amp have all the DSP and limiting , so why the driver fail?
Metal fatigue, too low XO point (too much LF power), or just too much power.
Factory DSP suppose to prevent any harm to the drivers!
I saw pics on the net where the diaphragm shattered like this or more.
See the pic
Like 8 months ago the original driver died, at that time it you can see the glue of the coil bubbled and more dark suggesting power failure.
But why? I have seen people who play them with the limiter light stuck on ,
And nothing blow.
Do I have a bad plate amp that is outputting DC or not limiting right?
I'm puzzled.
Last Friday gig one of my tops just go dull, so I noticed and when in front of the cabinet, I immediately knew what happened, I lost the HF driver.
The tops are :
Yammy DSR112, the plate amp have all the DSP and limiting , so why the driver fail?
Metal fatigue, too low XO point (too much LF power), or just too much power.
Factory DSP suppose to prevent any harm to the drivers!
I saw pics on the net where the diaphragm shattered like this or more.
See the pic
Like 8 months ago the original driver died, at that time it you can see the glue of the coil bubbled and more dark suggesting power failure.
But why? I have seen people who play them with the limiter light stuck on ,
And nothing blow.
Do I have a bad plate amp that is outputting DC or not limiting right?
I'm puzzled.
So this is the 2nd failure? Was that an OEM replacement driver or diaphram? If not that itself could be the cause.
Does the driver have any sort of capacitor for protection? Is it directly connected to an amplifier in an active configuration?
That sort of damage does not look like excessive power in the HF range. That looks like a large low frequency spike taking out the driver.
That sort of damage does not look like excessive power in the HF range. That looks like a large low frequency spike taking out the driver.
No , those speakers are discontinued and Yamaha do not have anymore drivers.
I just ordered DZR's 7yr warranty.
Question is what that failure was,as I don't saw Browning or bubbling on the coil but actual diaphragm shatter
I just ordered DZR's 7yr warranty.
Question is what that failure was,as I don't saw Browning or bubbling on the coil but actual diaphragm shatter
Interesting failure mode, doesn't look like any of the broken diaphragms I have seen. Appears to be where one of the coil lead in wires are, also looks like there is some distortion of the former right there. Crossover point is 1.7khz according to the specs.
Is it possible that they suffered a mic feedback issue?
Is it possible that they suffered a mic feedback issue?
Maybe somehow low frequency got into the amp, despite the active crossover. Maybe it put out a large(ish) 120Hz hum for a couple seconds due to amplifier misbehavior.
Or maybe 1.7 kHz crossover really isn’t high enough or steep enough for it.
Or maybe 1.7 kHz crossover really isn’t high enough or steep enough for it.
No mic feedback , I have pushed them harder other times ,that night was around 40% power, no limit light