Boss VF-1 Effect Processor

Hi Niki,
When you refer to the speaker emulations, do you mean the Amp Sim 
parameter section, or the amp types in the global section of the 
utility menus, or ...?  I did try tinkering with both of those, but 
it still sounds pretty buzzy.  The tones really have a fuzz type 
quality to them.  Also, I can hear what sounds like a processing 
glitch: a sort of pulsating sound that has unappealing overtones to 
it.  I did reset the unit to the factory presets, so I don't think 
I'm hearing someone else's bad edits.  I wish someone else around 
here had a VF-1 so that I could compare.  I'm really starting to 
think that I have a processor problem.
Thanks,
Bert