I found something really really bizarre going on with my Magni. Anyone want to be my test dummy?
Try this track:
(best with a closed bassy headphone that's easy to drive)
(I have the full album in FLAC and it's much better sounding than that video)
The sound at the start sounds like my driver is crackling/rattling and there's some static.
This is with my DJ100 (actually Tony Bennett version). It's not the headphone and I don't have this issue with any other source.
It doesn't occur with any of my headphone with lighter bass. It's not a crappy headphone.
Tried the following:
Different USB cables (one with ferrite bead)
Different USB ports
Powered USB Hub
Plugged straight to wall and with surge protector.
It occurs with maybe 30% of my cables.
Mostly with my Cardas HP1 cable ($35 cheapy that has good shielding too) and RCA/GE Wal-Mart cables. Both have the same capacitance I think and are dead quiet. I tried a headphone cable I got at Guitar Center and it's extremely noisy when plugged in.
I was able to create this problem the easiest with an RCA brand RCA to mini cable and a GE brand $5 cable on my DJ100/TB.
I switched to different cables and it goes away. WHAT THE HECK?! Why would this happen with so many of my cables? Is the Magni that picky?
Maybe the Magni is overkill for my DJ100. Not really...
BTW I noticed after that Guitar Center cable was ultra noisy, I tried my Monoprice cable..dead silent..and to think someone recently said they had no shielding...Ok whatever..
So I guess if you think cables don't matter, the Magni might make you think otherwise I still don't know what's going on, but problem fixed I guess. Maybe those crappy cables I was testing out were too thin or something. Normally it shouldn't matter. Right now i'm using a GE Ultra Pro (clear with very good metal shielding) and a Mogami W2528 RCA to Mini cable for the connection from DAC to Amp.
That Cardas cable is my favorite too..doesn't tangle, but unusable with the Magni. Bizarre...it's NOT defective.
NOTE: The same cables don't cause this issue on my E9 or Micro Amp.
BTW at first I was thinking that maybe all that garbage was IN the recording, but I don't think so. Can't hear it on my HD-650 or Q701.
I got some very faint crackling on my HD-650, but otherwise OK.
Edited by tdockweiler - 1/16/13 at 1:52pm