Ground loop with Miyajima Premium mono


Hi to all,
this is the trouble:a annoying hum from speakers when
the Miyajima mono cartridge play.Aesthetix Rhea phono stage.
This resolved only desconnecting a channel from the cartridge
and selecting mono function from line pre.
Does someone know how this problem can be resolved?
Thank you in advance.
somaxx

Showing 3 responses by mikelavigne

obviously Robin is the expert here. i had the same problem with my Miyajima Premium Mono, called Robin, and he gave me the same answer.

i've been listening that way for 6+ months and works great.

enjoy!

stunningly good sounding cartridge.
Lew,

you can do the same thing with interconnects that a mono switch will do. so it's not a limitation not having a mono switch.

you simply have to rid yourself of the ground loop.
ok. Robin said, due to the fact that both sides of the cartridge use the same mono signal; when connecting two stereo outputs it "can" cause a ground loop. this does not always happen. in fact; i've had it when it did not cause a ground loop....and i don't know why it does not always happen.

but if it does; then you get a sum'ing interconnect (where you have 2 rca inputs into one rca output) and plug that into one side of your preamp. and then use the mono switch on your preamp to get 2 channels of mono. you have then defeated the ground loop.

if you don't have a mono switch then you get a splitter (an interconenct with a single rca input and 2 rca outputs) plug the suming single output into the splitter and plug one output from the splitter into each stereo input. you now have a mono signal out of each input (just like a mono switch).

the most elegant solution is to get a friendly cable maker to make you the suming and splitter combo piece and eliminate the extra connectors. it's a simple thing to do.