[whereas]

This is the first I've heard of "crosstalk," or that it's a desirable sound characteristic. Is that basically where something intended to be placed in the right channel "bleeds" over into the left channel, and vice versa?

 

[jamato8]

  This is the first I've heard of "crosstalk," or that it's a desirable sound characteristic. Is that basically where something intended to be placed in the right channel "bleeds" over into the left channel, and vice versa?

Yes, intended in some cases and not in others. 

 

[Jazzyfi]

Can't wait for the detailed review for DX90 vs DX100 vs R10! I'll wait a bit before jumping ship.

 

[zenpunk]

Crosstalk is a design shortcoming/fault and will always deteriorate SQ- also beyond 70db I doubt it would audible, but it  has nothing to do with crossfeed. 

 

[jamato8]

  Crosstalk is a design shortcoming/fault and will always deteriorate SQ- also beyond 70db I doubt it would audible, but it  has nothing to do with crossfeed. 

I do not agree. Frankly the specs as you mention, it isn't enough to be audible but after you get to the TRRS 2.5 in the AK240, I know that the published crosstalk will no longer hold but they don't mention the effect of the 2.5 TRRS but then that is for another thread. 
 
The proof will be in the hearing and I am totally sure, it will be great and crosstalk will have little bearing. 

 

[revolutionz]

Yes, I think you guys are confusing crosstalk with crossfeeding.  Crossfeed can reduce the fatigue of a large soundstage with a lot of hard left-right panning by bleeding the channels together just a little bit (read: controlled).  Crosstalk between channels is something you don't want, it is one channel interfering and bleeding into the other, which can be a sign of poor circuit design.  That being said, at -76dB, I doubt the crosstalk will have any discernible effect on anyone's listening experience.

 

[jamato8]

  Yes, I think you guys are confusing crosstalk with crossfeeding.  Crossfeed can reduce the fatigue of a large soundstage with a lot of hard left-right panning by bleeding the channels together just a little bit (read: controlled).  Crosstalk between channels is something you don't want, it is one channel interfering and bleeding into the other, which can be a sign of poor circuit design.  That being said, at -76dB, I doubt the crosstalk will have any discernible effect on anyone's listening experience.

I understand it. What I am saying is that the extreme right left of some recordings, even though crosstalk can be considered a negative, isn't by all designers when it is at a certain level, that is all. Otherwise I agree with you. 

 

[goodvibes]

Crosstalk is never desirable but also not necessarily a problem either. At these levels and for this purpose it's likely a non issue, especially if worst case into low impedances. This sort of spec wouldn't qualify to be compared to any discernible crossfeed amount.

 

[goodvibes]

~~The 76db crosstalk number jumps out as a bit low to me? X3 has >90db (@10KΩ), AK100 claimed ~120 (@no load).... in any case I don't put much stock into marketing specs and can't wait to hear it for myself soon.  

Actually, the x3 and X5 are 75db under the same conditions so effectively the same. You're looking at the line out #.

 

[jamato8]

Yes, use the LO is nice to have low so you can do what you want with the signal and from there, is is very low. It's all good. 

 

[M-13]

75 decibels below is pretty much inaudible for me. In fact anything there, even crazy distortion will pretty much be inaudible (for me)

 

[jamato8]

I got my 128gb Micro SD card today. Works great in the DX50 and iBasso has already tried it out in the DX90 so good to go. It shows 127.65gb. Lots of music, a fair amount of DSD. 

 

[Jazzyfi]

In case you can hear it, I bet they would advertise it as crossfeed. It's not a bug, it's a feature .

 

[elchaka]

  I got my 128gb Micro SD card today. Works great in the DX50 and iBasso has already tried it out in the DX90 so good to go. It shows 127.65gb. Lots of music, a fair amount of DSD. 

any pic on final physical design of DX90?

 

[headwhacker]

any pic on final physical design of DX90?

Look at DX50's pic. It should look exactly like DX90.