cable choices, bluetooth, preamp.


I just bought Revel F228be and krell 175XD. I am looking for  Xlr connectors from pre to amp.  Can anyone recommend a length and the brand name of the cable that is compatible to what I have? I am looking to spend around 1k. Also, looking for a cheap Bluetooth box to connect to the preamp. Finally, I am looking for a matching preamp. Any recommendation will help. Thank you.
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