[Harp-L] Huge Kalamazoo speaker moan

[dennis moriarty <dmoriarty@xxxxxxxxxx>]

I bought this K 2 a few years ago and never really played with it. I  
think I got it through harp-l or ebay and it looks great, e.g.,  
wiring, Jensen speaker, clean, etc.  As soon as you put on the amp it  
lets out a loud bassy groan unaffected by inputting a mike and hardly  
affected by the amount of volume or tone. Even with this unbearable  
moan I can hear how the tone is terrific. I'm definitely not a  
technical guy and presume I'll have to take it in to get looked at.  
Just thought I would post to see if this was common and easily  
rectified. As usual Thanks.   dennis (nyc)