I have used a couple SS pre to drive my 3205(older original Signature version), both worked very well. I have also used a passive TVC and a couple tube pre's, I seem to prefer the combination of SS pre with the 3205. The passive combo was nice and smooth but I was soon missing that extra 'bite' an active pre contributes. Both of the tube pre I used added too much noise, hum (these were cheap budget tube line stages, under $300.) and gain.
I would suggest you try each type within your budget to 'see' which matches up with your preferred sound.