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Why is my Velodyne DD-18 "blowing up? "

Hello--I have my DD-18 connected to an Integra 80.1 preamp with 7 other B&W speakers, 2 monos, 1 5 channel amp, with a 20' long RCA terminated mid-range cable.

Over the past 3 months, after playing music for about an hour at about 75 to 80dcb, all of a sudden, I get a very loud explosive 1 second crackling sound that is coming directly from the Sub? Nothing happens with the other speakers, and so far, the Sub just keeps working fine even after the "explosion?"

it kind of reminds me of my old Meridian DSP 6000 speakers that would Go into clipping mode after 1/2 hour of loud listening and get very hot. The difference is that I had to immediately turn off the Meridian system & let it cool down before they would play music again.

Anyone think they may know what is happening?

Thx in advance
djones1915
elizabeth
6,726 posts
 
I would think it is a capacitor failing in some odd way. Most electrical stuff either works or breaks, except capacitors and tubes.
If the noise is really not just one loud bang, and lasts for awhile, I would bet it is a cap failing. This is only a guess, but a decent guess. Then it could be (less posible) a diode. but i would place MY bet on a capacitor.
bwp
114 posts
 
If turning down the lever does not work I would take it in to a tech asap, chances are it will be an easy fix now but it may end up being something major if you continue to use it. Plus, it is hard to enjoy listening to your rig when you are worrying about equipment that is not working properly.
djones1915 OP
53 posts
 
Thx to each of you for your help. I will take it in to a tech right away
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