I have just completed the 15ips tape saturation emulation addition onto the pre-amp. The picture below shows the tape saturation circuitry and how it is integrated into the pre-amp. I have uploaded the samples on the sound cloud here: https://soundcloud.com/eugenenks/sets/sample-of-preamp
The files are from BOZ Digital Lab mixing contest, I do not own those tracks. Please listen to the samples a few times because there might be glitches when the files are loading for playback .