I agree with Jimstrange. The problem you are describing is due to the 6dj8 tube used in the PH3SE. The preamp does not sound dry or cold it just does not sound right (like the real thing unless the right associated components are used with it) This problem can be solved quite simply. If you are using Cardas interconnects between the phono preamp and pre insert a Cardas power cord on the PH3SE. If you are using Discovery interconnect cable between the phono preamp and preamp insert a Discovery power cord on the PH3SE (you will need to try different versions to get the right mix). This will solve the problem that you are describing.
Advice on Phono Stage
I need advice on a phono stage. I have an ARC PH3SE which sounds a little bright in my system. I'm running it through a Threshold T2 line stage and Pass Aleph amps into Dynaudio Contour 3.3 speakers. Turntable is VPI Aries, 10.5 tonearm, and a Benz Ruby H cartridge. Cables are Cardas and Discovery. Can anyone recommend a phono stage that will add a little warmth to the system? I don't want to go over $4000 new or used and would prefer SS over tubes. Thanks.