As should be applied to every thread of all time!
Stepped attenuation all the way for me. For various reasons but the chief being I think they sound better. Plus you can lock the volume on exact increments which I have found useful for squeezing better dynamics out of different sources and even just different albums. Volume matching has a big effect on my system/s.
Check these out, I've bought source selectors from the seller before and the work is very good. Plus you can spec your requirements RCA/XLR in/out etc and choose your pot/attenuator.
Cheers
https://www.ebay.co.uk/sch/spj-la-lu...p2047675.l2562