Spark Operation

[lag]

Hi people, 

I´m waiting one  Silver , One regular Phantom plus 1 remote and a dialoge unit.
I´ve been a 200 user before , my preference was J-river +USB + Dev. 200 . 

Before the Phantoms arrive , the Spark app. is installed on my Mac Mini but can´t use it without a Phantom ( of course). 
So I beg you can help with this questions : 
-Does the Spark replaces J-River 8 or similar programs)  or work with it? 

-Does the spark accept native  DSD , 192 or 96 files?  

-Do you need the external volume control or the Spark Volume is enough? 

-Does the Sark Volume loose resolution? 

Thanks in advance. 


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