ARC in recent years hasn't put all that much effort into full-function tube preamps, prefering instead to sell the phono stage in a separate chassis. But if you are still looking for an ARC tube preamp, the SP14 I hear is great.
Unless you like your music loud and/or have a very large room, you shouldn't need a ton of power. However if it were me, I would want more power than the Stingray has for D25s. But you should check out this system and maybe email its owner to see what he says:
http://forum.audiogon.com/cgi-bin/fr.pl?vevol&1158422873&read&keyw&zzd38
Arthur
Unless you like your music loud and/or have a very large room, you shouldn't need a ton of power. However if it were me, I would want more power than the Stingray has for D25s. But you should check out this system and maybe email its owner to see what he says:
http://forum.audiogon.com/cgi-bin/fr.pl?vevol&1158422873&read&keyw&zzd38
Arthur