Real experience - Balanced or Unbalanced between Luxman Pre & Power Amps

@photon46 appreciate the response.  Are there any particular interconnects or XLRs you'd recommend?

Rest of the system is on par with the amps (ATC speakers, Michel Gyro Se, Koetsu Black, Gold Note phono and psu, blue sound node with chord qutest dac and separate PSU).   All plugged into an AQ niagara 

Thanks all and I appreciate all the input.  I'll find a local store that has some cardas options for me to test.  

I spent some time thinking through my challenge this morning and am slightly spinning.  Here's where my head went.  

My original question was regarding connecting my pre and power amps for which I've received some great tips. The fun starts when I look at the rest of my system: my phono preamp allows both xlr and interconnect options to a preamp, i currently use the blue jeans xlr.  Should I also upgrade these whilst knowing my deck has interconnects feeding the phono preamp?  

Then onto my streamer and its dac, nordost heimdall usb to DAC and QED interconnect to my preamp. 

Whilst I cannot use xlr for every component, should I use where possible to get the extra gain and interconnect where needed but at minimum same brand and model for them all.  Hmmm.