Re: Behringer iNUKE NU6000 amplifier
The care center sent us back the cabinet with the cone hanging out so we could actually see the burnt coil ourselves. The video link is below, you tell us, burnt coil or very bad wrap. The coil looks nice and shiny to us but has a big split in the wrap. The coil isn't loose, that wrap probably didn't move there it is fixed in that position. This is why this cabinet had noticeably lower volume from the beginning we suspect.
IMG 0808 - YouTube
A couple things of note:
1. the EP4000 is rated for 950W rms, 1400W peak, 4ohm
2. the VP2050 is rated for 500W rms, 2000W peak, 4ohm
3. the VP2050 has two 15" drivers in a 2.5-way config meaning that BOTH drivers see (share) the same low-freq power but only the upper one is seeing power up to the 2.2k crossover.
"2 extremely powerful 15'' long-excursion drivers provide incredibly deep bass and acoustic power"
Just reviewed the video (at '1080', but it's heavily compressed) and the damage to the former is very heavy. It's hard to tell, but I can't see any obvious damage to the windings. If the coil was pulled apart like that from being launched out of the gap then you would see some obvious tearing/smearing damage in the soft copper by the steel top-plate.
It would also be difficult to pull a former with that much damage out of the gap.
I also do not see any discoloration of the copper in the video, but again it's heavily compressed and hard to see. The colour looks right to me.
It would be next to impossible to damage the woofer this severely without a LOT of noise. A 15" hammering on the back/top-plate like that would be a horrendous racket.
It would be impossible to damage one of these woofers like this, independent of the other, if they share the same chamber. It's possible the upper woofer is in a separate, sealed enclosure. Is it? I get the impression that they both share a tuned enclosure.
"The VP2520 features two extremely powerful 15" long-excursion LF drivers in a tuned enclosure, providing massive, tight bass all the way down to 40 Hz."