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Is it normal for the woofer to move in/out slowly

My only tubed piece is the pre-amp. It is the only piece I turn off when not in use. I noticed that when I turn it off the woofers on my speakers move in and out rather slowly while I hear what I assume are the tubes discharging.

Is that normal and more importantly can it cause damage to the speakers?

Thanks
bokfudo

Showing 2 responses by ajackson1

ajackson1
156 posts
 
Bokfudo, My speakers does this. I have a tube pre which I turn off after listening, have done this for years with no issues. Back to your question, yes my speakers does this and I don't see it as a problem hence have not investigated. But I will not worry about it.
ajackson1
156 posts
 
Rja, thats a good question. Have no answer, however, there have been several discussions about if leaving the pre on is better than off. Based on my point of view most don't know the answer and some will offer some elaborate technical reason one way or other, its all pure speculation. Like I said I turn my on and off between listening sessions and have been doing this for years with no negative effect. I have used the same set of 6sn7 tubes over the years.
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