Im looking to buy a cartridge to go with my Rega RB250 Origin Live upgraded tonearm (which has'nt arrived yet). Ive read nothing but positive remarks about the Shelter 501 mk2, so im seriously considering this one at around £500. I understand it is supposed to have a slightly warm sound, which is fine by me. The Dynavector Karat 17D3 has some good reviews costing around £600. It has a very unique short stylus. The ZYX R-100-02H Yatra is another slightly more expensive option and costs £900. I had been interested in the Dynavector XX2 (costing £1000 nearly) until I read a review which stated it was sensitive to load impedence settings and wasn't worth considering unless your phono amp allows use of different settings, which mine does'nt. ([URL]http://www.tnt-audio.com/sorgenti/xx2mk2_e.html[/URL]) Could anyone give any advice on both cartridges ive listed or different makes in a similar price range?. Am I looking to spend too much bearing in mind that my speakers were about £850.