Dear Gregadd: There is a high difference between these cartridges: the RS is a typical Koetsu sound cartridge and the RSP really shine all over the the frecuency spectrum. The RSP perform very well at the frecuency extremes: LF/HF, where the RS is not a top contender.
If this characteristics are important to you, then pay for it, you will be satisfied.
Regards and enjoy the music.
Raul.
If this characteristics are important to you, then pay for it, you will be satisfied.
Regards and enjoy the music.
Raul.