How can I fix this Phono Stage problem

Audiofeil:

I am running the Canary CA-430 into the C2200 phono/Aux input. I have used that input with several phonostages including Modwright, Graham Slee and SAP. But I did not get any ground loop problem like now. And I have always use the Dynavector 20XH high output MC cartridge with the phonostage set in the MM setting for this cartridge. Are you suggesting that I use one of the other line input (tape, CD, DVD,etc.) instead of the Phono/Aux on the C2200 preamp?

Yes, input the Canary into another line input other than the phono/aux and see if that ends the buzz.

The Canary may have the (+) and (-) sides of the A/C input reversed?
To check you would have to make a cheater box, to be able to reverse the A/C line hot and cold. But it might be worth checking out.
Short extension cord, a wall outlet box, plastic is best, a wall A/C receptical. cut end off extension, wire receptical in box reversed from why it is supposed to be with hot on wrong side. (ground is normal) IF it quiets hum then your Canary is probably wire hot on wrong leg. And just fix it.

I think I found the solution to the problem.
I took off the interconnect from the TT to the Canary and tried several of my other cables and the buzzzzz was still there. So for some reason I dig into my archive and pulled out a 20 year old Radio Shack interconnect. I was shocked!!!
The buzzzzzzing stopped. I tried another Radio Shack interconnect and it also worked. I went back to my expensive interconnects to verify, and the buzzzzzing was there again. I have interconnects costing up to $450/pair, and to see a $5.00 twenty year old cable solve the problem was unbelievable. I measured the resistance of the Radio Shack cable and it was 2 ohms. I measured the other cables and each was about 10 ohms on average. It seems like the Canary does not like the high impedance cables. I tried six pairs of my premium cables, and two cheap cables did the trick. I think the problem lies within the Canary because I used several other phonostages and I did not get any buzzzzzzz. Now I to figure out which premium cables have the lowest impedance that will match up with the Canary. Do you have any ideas? or did I miss out anything? or have you come across low/high impedance cables?

Some high end cables have some weird grounding setups. It could be that you have run afoul of one of these, wherein the way that the Canary is grounded is different enough that the cable is not compatible.

A 10 ohm resistance is rather high though. Is that in the shield connection??

FWIW, there are a good number of LOMC cartridges that are less than 10 ohms. A resistance like that could knock the output of such a cartridge down by half or more! This may not be the best cable for phono use...