Hmmm.
I get the same ground loop buzz with my Toshiba R25 with the same AC Adapter.
I'll try a different AC adapter and see if it's just that AC adapter.
*Edit - I tried a different Toshiba AC adapter, an older one. No ground loop buzz this time. I did get one weird loud pop noise when I touched the case at first. Static electricity discharge? Didn't happen again. So the buzzing must be coming from that particular AC adapter. I'll try this same AC adapter that is not buzzing with my R25 and try it with my older Toshiba 3505 and see if the buzz is gone as well, that will confirm it's the AC adapter that's at fault.
*Edit 2 - Ground loop is still there, but much quieter with my Toshiba 3505 and the older AC adapter that wasn't buzzing with my Toshiba R25. I can only really hear is High gain and volume cranked to 1 O'Clock. No way I'd ever want to play anything at that volume with my Triple.Fi's. So practically speaking ground loop is not an issue with the older Toshiba PSU. I guess I'm going to relegate that newer PSU to back up use. Figures that the newer PSU is crap.
*Edit 3 - I get a small amount of ground loop with my Fujitsu P1610 with the AC adapter plugged in, but it's only at really high volumes in high gain. So again, not as bad as the crappy Toshiba PSU.
-Ed
I get the same ground loop buzz with my Toshiba R25 with the same AC Adapter.
I'll try a different AC adapter and see if it's just that AC adapter.
*Edit - I tried a different Toshiba AC adapter, an older one. No ground loop buzz this time. I did get one weird loud pop noise when I touched the case at first. Static electricity discharge? Didn't happen again. So the buzzing must be coming from that particular AC adapter. I'll try this same AC adapter that is not buzzing with my R25 and try it with my older Toshiba 3505 and see if the buzz is gone as well, that will confirm it's the AC adapter that's at fault.
*Edit 2 - Ground loop is still there, but much quieter with my Toshiba 3505 and the older AC adapter that wasn't buzzing with my Toshiba R25. I can only really hear is High gain and volume cranked to 1 O'Clock. No way I'd ever want to play anything at that volume with my Triple.Fi's. So practically speaking ground loop is not an issue with the older Toshiba PSU. I guess I'm going to relegate that newer PSU to back up use. Figures that the newer PSU is crap.
*Edit 3 - I get a small amount of ground loop with my Fujitsu P1610 with the AC adapter plugged in, but it's only at really high volumes in high gain. So again, not as bad as the crappy Toshiba PSU.
-Ed