I never had this problem w/my EAR834L but i have had this problem when my interconnect came too close to a transformer or other power source(and in one case when they were near a big woofer). Check your cable routing. You can also check to see if there is hum due to grounding - float the ground on either your amp or preamp and see if anything changes.
tube pre-amp feedback...
I have recently switched from a solid state pre to a tube pre with my Odyssey Stratus amp. Now while I like the sound and combination, the EAR 834L pre I am currently using does seem to cause some feedback/light buzzing. I find this the most when the volume is all the way down, becoming quieter as I turn the volume up (yes, even when I don't have anything playing). I also find it sounds like something in the line is picking up a radio frequency or something.
This seems strange to me, as I know the person I purchased the EAR from used it with a Bryston. I'm a tube novice looking for advice. Any thoughts appreciated. Thanks!
This seems strange to me, as I know the person I purchased the EAR from used it with a Bryston. I'm a tube novice looking for advice. Any thoughts appreciated. Thanks!