A little bit of engineering: The azimuth of the cartridge can have a big effect on its sound- imagine one side having a different amount of contact than the other groove wall, and at a different elevation. You may indeed encounter excess noise if the azimuth is not correct.
Now examine the physics of the unipivot. Some designs can oscillate above the exact center and apogee of the groove. If you can see the angle of the arm that is a lot in terms of what is happening with the stylus. The Graham uses a magnet system to stabilize the tendency/ability to oscillate; what you can take from this is that the effective mass of the arm cartridge setup is critical to reducing this oscillation as the cartridge tracks, plays bass and negotiates warp. The Graham, due to its stabilization, would seem to be less critical of this effective mass/ mechanical resonance issue.
So if you encounter this problem with a unipivot the first thing I would look at is the effective mass and how that interacts with the compliance of the stylus.
There are other variables that must be attended if you are to have success- for example loading, which is far more critical if you have a preamp that is unstable with RF energy and a LOMC cartridge. On this account, I would be hesitant to ascribe too much to the unipivot itself until you have some of these other variables nailed down.
Now examine the physics of the unipivot. Some designs can oscillate above the exact center and apogee of the groove. If you can see the angle of the arm that is a lot in terms of what is happening with the stylus. The Graham uses a magnet system to stabilize the tendency/ability to oscillate; what you can take from this is that the effective mass of the arm cartridge setup is critical to reducing this oscillation as the cartridge tracks, plays bass and negotiates warp. The Graham, due to its stabilization, would seem to be less critical of this effective mass/ mechanical resonance issue.
So if you encounter this problem with a unipivot the first thing I would look at is the effective mass and how that interacts with the compliance of the stylus.
There are other variables that must be attended if you are to have success- for example loading, which is far more critical if you have a preamp that is unstable with RF energy and a LOMC cartridge. On this account, I would be hesitant to ascribe too much to the unipivot itself until you have some of these other variables nailed down.