A. As someone already asked, did this problem just begin?
B. And do you run the Steelhead directly into your amps?
I think you have checked the signal chain thoroughly enough. And I don't think the problem lies with sloppy hookup or wires. Frankly, with that big a difference, I would have been more inclined to first check the components themselves meaning:
1.) The cartridge (which is OK)
2.) The phono preamp. Not necessarily faulty (though possible) but maybe an adjustment or connection got inadvertently changed/switched?
.
B. And do you run the Steelhead directly into your amps?
I think you have checked the signal chain thoroughly enough. And I don't think the problem lies with sloppy hookup or wires. Frankly, with that big a difference, I would have been more inclined to first check the components themselves meaning:
1.) The cartridge (which is OK)
2.) The phono preamp. Not necessarily faulty (though possible) but maybe an adjustment or connection got inadvertently changed/switched?
.