I also have an ARC LS 25 MKl pre-amp. I just made a deal to purchase "sound unheard" a Calypso. I did so because of a few things. Number one: the fine review by JadeM6 and Perfectionist and many others!! I also have an Aesthetix Rhea which I happen to love. I suspect the mating of the two would work well. I have not received it yet but should be here in a week or two. The original owner (the unit is one year old) has the original tubes and also some Siemens and dynaco tubes. I will listen to both and report back to you all on my findings!!
P.S. My hunt for an new TT and arm still continues....also!!
P.S. My hunt for an new TT and arm still continues....also!!