Damaged Dome Mid-Range


I have an Energy Veritas 2.3 with a damaged 2 inch dome mid-range driver. It has been suggested to me that the problem with the driver is related to the diaphragm, voice coil, or both. The symptom of the damage is distortion that is apparent during use. I use the speakers for everything ranging from two-channel to movies. I can be an aggressive listener. The speakers are powered by an Adcom GFA 7000 (for the lower end) and a Denon 2803 (mids and highs). The Denon is obviously also pulling duty for surround processing... The stated power output for each (20-20 / all channels driven) is 130 and 90 watts, respectively. The speakers are rated at 200 watts.

Now to the questions. Is the damage done to the driver likely the result of the Denon clipping during a high output scene during a movie? If this is the case, I can surmise that 90 watts is insufficient? Though I don't think so, is it possible that I have the mid-range and tweeter over powered? Why would the mid-range sustain damage and the tweeter not?

A local dealer suggested that the Denon didn't clip, but sent pure voltage to the speaker and that is what damaged the driver. Don't know what that means. Any credence to this notion? If so, what happens and how do I avoid it?

I know this is a lot to chew. Any brilliant responses appreciated. :)
mordenmail

Showing 1 response by electroid

"A local dealer suggested that the Denon didn't clip, but sent pure voltage to the speaker and that is what damaged the driver.'

well that's kinda properly stated. When an amp clips it sends DC to the voice coil which can burn it over time.....that time could be a second or a minute, depends on the level and type of signal sent.

ET