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A Ghost in the System? Music Thru Speakers with Preamp Disconnected

I disconnected my preamp yesterday completely from my system in order to install some constrained layer damping tape.  The DAC was on and receiving music, but the signal chain between the power amp and the dac was completely broken due to the preamp being removed.  BUT:  I could hear very low volume, but very clear, music playing thru the speakers!  And no, I was not intoxicated.  How is this possible?  Cool stuff.  Thanks.
tomask6
erik_squires
15,616 posts
 
By disconnected, do you mean you removed the interconnect cables?

If yes, then power issue. If not, you are getting crosstalk from the preamp, though it is usually thought of as a Left to Right thing, it's also possible to get it from one input pair to another.
douglas_schroeder
3,281 posts
 
This can only be Phantom Doppler Effect. You are moving so quickly that the sound is only catching up after you disconnected... 
geoffkait's avatar
geoffkait
23,365 posts
 
Electrons move very slowing. So, after you pull the plug they’re already on the way. They just take a while to get there. 
boxer12
8,654 posts
 
Your entire system is possessed & likely evil. I'll take it off your hands :-) (You're Welcome) 
tomask6 OP
43 posts
 
Music heard was same as that on DAC. XLR cables were hanging from the power amp and dac, but not connected together.  Preamp was unplugged and in another room!
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