I checked out the REF MK4 after reading Dcarol other raving posting, looking at the design over all I have to say it's odd and far from being practical specially at the asking price in comparison to other manufactures offerings out there.
If this unit is actually placed within a rack which I would think most are as mine then you actually have to disconnect all your cables to it, then remove it.
Once removed flip it over and then unscrew and remove the plate which I agree it's self would not take long to do but being located on the bottom of the unit is just strange, you do the switch of the DIP switches and then reverse the whole process.
No way does this take 1 minute or even 5, way more!
Once in place if for some reason you don't like the setting or you are actually comparing then you have to repeat the whole process again, to me this is rediculous and very inconvenient.
This unit is far from being cheap and a far cry from what is suggested above only taking 1 minute to change settings.
Sound, I heard this unit in a unfamiliar well respected set-up, not my own though. I listened to a few pces of music and then it was swapped out for a ROSSNER & SOHN Canofer S phono pre. and I listened to those pces again.
This specific phono Canofer S offers knobs on the front for convience to make changes on the fly, no having to disconect or remove it etc.
Over all sound, I would suggest you add this unit to your list and compare, you will be pleasantly surprised. You can just google ROSSNER & SOHN Canofer S phono pre for more info.
