So my SS v.3 arrived today from Sweetwater. Came while I was teaching privately so that kid got the candy!
I've only played with it for 30 minutes or so. I am a jazz/groove Hammond player with a SK2/XPK-200L and I mainly want this to give me a great Leslie effect. The SK2 has a great Leslie sim especially in stereo.
First, this is a solid build and properly shipped! Really impressive and simple in a good way; no superfluous knobs or functions.
The speakers are incredible, the best 8in speaker I've ever heard. The low notes are stronger than the 100hz would leave you to think. Bass notes are strong enough to cover a walking bass line for jazz in a small room. Without the stereo effect this is still a great amp for a keyboard, very clean and warm.
I've been practicing in a great stereo field by setting my PA speakers on either side of me, also I like to have a Presonus Stereo Blue Tube preamp to warm the sound. I left the Blue Tube running and connected the SS v.3. I set the SK2 EQ flat-its a strong, useful EQ too. Great sound but a little hissing/noisy. So I removed the preamp and WOW, this amp was made for the SK2! The SK's leakage, drive is so much better with the SS. A lot more of the sound the Vent gives as far as I can tell from youtube vids. 888000008 has more breath than any other set up I've used.
The Leslie is great just like being in the sweet spot in stereo but everywhere, at once. I like the Width set at 2 o'clock and am still experimenting with the Mid and Supertweeter settings which are powerful.
My only detraction is that as you add Width you get more hiss but its not too much for most performing.
Overall, I am very impressed and will write more as I find more.