Csericks, I did that (drove S-S poweramps with a V-T preamp) very succesfully with various CJ preamps. With fono stage and for little money, my choice was a CJ PV5. It has gobs of gain (70dB), low noise, and low output impedance, something highly beneficial with low-input-impedance SS poweramps. (Seems to me the Audible Illlusions did not have cathode folowers and hence had high output impedance?)
I have a great-sounding, fully functional, highly improved PV5 available; e-mail me at jeffreybehr@cox.net if you're at all interested.