@audiocanada - Naim exists in their own universe of cables. They do not promote connections to other brands
It would appear that they use a single 3 pin XLR connector with L/R/Neutral wiring
- see this link NAP-250
- scoll down to the back panel image and move your mouse pointer over the input on the image for a magnified view of the pin connections
You may be able to get converter cables made up to suite your needs. Try to find a local technician to accomplish this
- I would opt for an RCA to the NAIM XLR plug
As far as Speaker cables go, you need to stay away from high capacitance cables like the TOTL Cardas cables and some Kimber kables models
- NAIM amps are a high current design and using high capacitance cables can drive the amp to oscilation, which can burn out internal components
I’m not familiar with the model you mention, but I did own a Naim 5i at one time, so I did a lot of research around this topic.
BTW, Naim recommends replacing the power capcitors after 10-12 years. My caps failed after 11 years and cost me $400 to replace - I was without the amp for 3 weeks
Welcome to the world of NAIM
Naim are good amps if you buy into their philosophy (many people do)
I unloaded mine and replaced it with a Bryston B135
- better sounding than the Naim, but had similar dynamics and neutral sound qualities
- comes with a 20 year warranty
Apologies for the not-so-good news
If you have any questions ask away
BTW I’m in the collingwood area - if you want to chat you can get my details here
My Audio Alchemy (image99.net)
Regards - Steve