Unstable Imaging - Causes?


I've been listening to my Music Hall MMF-5.1 through a Bellari VP129 phono pre for about 1.5 months now, and the whole time I've noticed that the imaging in the trebble likes to shift to the right channel every now and then. The entire soundstage will sound evenly distributed until there is a part in the song with a lot of trebble (i.e. sibilance, cymbals, higher octaves of instruments, etc.) at which point the treble shifts slightly to the right. I've suspected that part of the cause might be that the table and tonearm itself are positioned slightly right of center, and I may be getting some "needle cross talk" (or whatever they call that). I may experiment by putting something in front of the turntable to see if that's the problem, but does anyone else have any ideas as to what may cause this?

Thanks
jwglista

Showing 1 response by rauliruegas

Jwglista: The MMf 5.1 as the bellari are un-familiar to me, anyway here are my thoughts about:

+++++ " The entire soundstage will sound evenly distributed until there is a part in the song with a lot of trebble (i.e. sibilance, cymbals, higher octaves of instruments, etc.) at which point the treble shifts slightly to the right. " +++++

Other than you make exactly what Newbee already posted ( on the VTF subject you could try to set-up at the upper VTF limit of your cartridge specs and obviously that the tonearm is flat leveled. ) ) is to check that the tonearm/headshell wires are connected in right way to the cartridge: red one with red cartridge pin, etc, etc, then check if the RCAs tonearm outputs coincide with those tonearm/headshell wires: red wire with right output signal, white one with left output signal, green one with right ground output, etc, etc.

Other than these could be on a cartridge out of target or something wrong on the Bellari.

Regards and enjoy the music.
Raul.