Try to hear Ortofon Cadenza Black ($2,380). It's detail, dynamic and pinned center imaging. There is a bit tendency to be forward but proper speaker positioning & cable tweak will do the job. For the tonearm, try 12" arm.
Where to go from a Shelter 901 Mk1.
I have a friend with a 901 MK1/ Dr Feickert Woodpecker TT/ Jelco 10.5" tonearm. The combination sounds extremely good but the 901 either needs a re-tip OR replacement. Are there any cartridges out there at $2000 which will TOTALLY outperform the 901 or is it best getting it re-tipped with Expert Stylus' new profile. For all you chaps that do not know Expert Stylus, they are without a doubt the UKs premier re-tipper. - No I have no financial tie to them.
regards Rob
regards Rob