change stock cartridge for high output mc cartridge such as goldring eroica.
What cartridge are you using (some carts such as Grado are especially susceptible to hum)? When you say you have a ground wire connected from the turntable to the phono preamp, where is it connected at the turntable end? Do you also have a ground wire running from the tonearm to the Creek? Is there a ground connection on your preamp to which you can run a ground from the Creek to the preamp? Hum problems can be very tricky to solve (as you're finding out). You might try starting from scratch with NO ground wires connected and then add one at a time, in various combinations. Sometimes it works best to leave ground wires DISconnected. Good luck, Dave
Thanks for the help gents.. I have the stock Goldring 1012GX cartridge that came with my MMF5.1. I grounded my turntable by connecting the grounding wire from the turntable ground connector to my phono preamp ground connector. The humming doesn't stop when I turn off the turntable, but it stops when I unplug the turntable's dc adapter.
How do I ground my phono preamp? Connect the ground connector to the amp chasis?
Okay, there are several steps you can take. Yes, try grounding the phono preamp to your linestage or receiver. Try repositioning the phonostage relative to the turntable and see if you can find a location that minimizes the hum. Try grounding the turntable itself -- not just the tonearm/cartridge -- if you can find a metal connection point under the turntable.
You should take these steps one at a time. It will help if you get (or make) some ground wires terminated with alligator clips -- Radio Shack sells them.
Don't be surprised if at some point the hum just disappears and you can't figure out why. I just went through this drill and that's what happened to me. Good luck, Dave