Tube pre to mate with a Simaudio amp and Dynaudio


I've just recently taken delivery of Dynaudio Contour 1.3se monitors and am looking for amplification.

I've heard these speakers with a Sim Audio I-5 and enjoyed the sound immensely, but would like to move to a W-3 and a tubed pre-amp.

I'm looking for a slightly richer sound, but one that is still relatively transparent, fast, and open. Are there any tubed preamplifiers that meet these requirements?

Under consideration:

Audio Research LS-15
deHavilland UltraVerve
Manley Shrimp

any other thoughts would be apprciated.
niravp
The Sim Audio I-5 is supposed to sound excellent with Dynaudios. But if you want separates, what about a Cary SLP-98 preamp?
The Hovland pre (either the old one (HP-100) without the remote or the new one (HP-200)) would be an excellent pairing with those speakers and W-3. I have auditioned the W-3 with a higher level Dyn bookshelf speaker and the Hovland HP-100 and was very impressed when I was looking for my audio equipment. For some reason, I got carried away and ended up going much more expensive in my final selection.
Agree about the Hovland... Heard it with Dyn S25s and a sim w5 a few times... perfect combination. I own a supratek syrah, though, and it is also perfect for dyn and sim, but you must wait if you want one