Fosgate Signature Phono V1 Preamplifier

Thanks Gary, I am leaning towards the SER but still open to suggestions from owners of the Fosgate V1. I might try the SER and one other. How did it handle the bass. Also did any of the other tube changes make a difference? I read that only the V3 position 12AX7 will.

I put in a Siemens CCA (6922’s) in the V1 and V2 spots, RCA 7025A in the V3 and a Telefunken Smooth Plate in the V4. For the V5 a Phillips 12AT7WC green lettering and in the V6 a GE Green Labeled 12AT7WC with white 6201 markings. The 6X4 tube is an El-Menco tube that says Made in Great Britain and has the classic four lines on the top of the tube. Still experimenting with those final three spots.