Can anyone shed any light on this ? .
I have been using the following without any problems - Technics SL1200G with AT VM750SH into the onboard phono stage of a Yamaha AS2100 .
It sounds good and more importantly it is deathly quiet ( when there's no music playing ) .
Then I introduce a seperate phono stage , Teac PE-505 , which works beautifully with the exception of a hiss / rustle when there's no music or when the music is quite .
Sounds just like a bad valve in a valve based phono . So I fiddled with everything I could think of , grounding ( although it's not hum ) , cables , headshells , gain and capacitance options . All with absolutely zero effect .
Felling like I've got a duff unit I resigned my self to sending it back . As one last roll of the dice I decided to change the cart , popped in a Benz Ace SH into the same MM settings on the Teac and there it is .................................................. silence , no hisses at all just wonderfull silence . So then I tried a DL103 on the MC side , again ghostly silence .
Back on with the VM750SH and back comes the noise , so I start thinking it's the cart . I connected the TT back into the built in 'stage on the Yammy to double check and it's back to having a silent background and working perfectly .
I've never experienced anything like it .
Anyone got any idea what is happening ? .