What preamp creates the largest soundstage?


I have always loved a large soundstage.  I have a small listening room (10x10) and have mini-monitors, driven by a tube amp.  I have played a lot with speaker placement, room acoustics, listening position to create a large soundstage.  I have rolled tubes on the amp and made dramatic improvements. (I have purposely left details on the brands of tubes, amp and speakers out, because I don’t want side comments to distract from my question)

i have a digital source into a solid state naim preamp.  I home demo’ed a well reviewed preamp, and was surprised at how much the soundstage shrunk, both side to side and top downward.  It was deeper, and did have much of the tube magic, but I could not live without the big soundstage.  

so my question is, does anyone have experience with a preamp that produces a big soundstage?  I am looking for recommendations on what to demo next. While I lean toward tubes, I am open to solid state.  I am okay either new or used, and could spend in the 5k range, but would be happy to spend less.  Also comments on specific brands (i.e. xyz is known to have great soundstage in all their preamps) as opposed to models, are welcome.

and I will be the first to admit that perhaps the very large soundstage is not “accurate”to real music, but boy is it seductive and I love it and can’t live without it.

meiatflask
I think that audiolab means the Aesthetix Calypso. The Rhea is a phono preamp.
Check out Linear Tube Audio,Decware,and Aric Audio.Each of those small companies offer excellent products.At present  I have a LTA microZ2 and it presents a wide and deep soundstage.
phantom_av-  it has been years since I have listened to Atma-sphere.  I will check into them.  Per their website, the preamps do not appear to have a remote, which is important to me.
A remote is available for both the MP-1 and MP-3.
“...does anyone have experience with a preamp that produces a big soundstage?”

I think most preamps in the $5K USD price range, especially if used, will throw a reasonably believable soundstage. Based on my experience having had a few different preamps, tube or SS, in my system, the difference is mostly in “how” the soundstage is rendered between the speakers. Some preamps have a more forward presentation with the vocals more into the room vs. others that are more recessed. And some have a wide stage but very flat. Your best bet is to try a couple, both tube and SS and see which has the sound quality you like when paired with your amplifier and speakers. If going the tube route, check the output impedance specs to make sure it mates well with your amplifier.