I've had several issues with a pair of high-end 200w/8ohm studio monitors blowing tweeters. They are being powered by an Adcom GFA-555 (200w@8ohm) power amp which is NOT indicating clipping at any point. It occured to me that while these speakers may be rated for 200W @ full range, the sub is removing everything below roughly 80hz (xover point), which would allow the amp to be pushed harder without clipping, thus delivering more juice to the HF drivers....especially since deep bass uses up a larger chunk of wattage.
To make this point clear, even though the speakers are rated @ 200W, you obviously couldn't send them 200W of white noise with a HFP @ 2k.....this would send the entire 200W to a driver probably rated around 50W.
Then again, a lot of music has very little content below about 60-70hz anyway, so using a sub with a HPF in the range would be analogous to listening to music which never had that LF information to begin with.
What do you think? Does using a sub effectively lower the wattage handling of downstream HF drivers? Could this be contributing to the blown drivers? Thanks fellas!
To make this point clear, even though the speakers are rated @ 200W, you obviously couldn't send them 200W of white noise with a HFP @ 2k.....this would send the entire 200W to a driver probably rated around 50W.
Then again, a lot of music has very little content below about 60-70hz anyway, so using a sub with a HPF in the range would be analogous to listening to music which never had that LF information to begin with.
What do you think? Does using a sub effectively lower the wattage handling of downstream HF drivers? Could this be contributing to the blown drivers? Thanks fellas!