Linn Basic LVX or Rega RB300 ?

I have an RB300 on a Linn LP12. I have had many cartridge combinations on it with excellent results (Blackbird, Benz Glider).There are NO compatibility issues with the Lin LP12.

I have rewired the arm with a concomitant boost in sound quality. I also had a Linn Basik LV X. There is just no comparison. I am looking to unload the Basik LVX....

The Linn Basik LVX is a great sounding tonearm (and as a plus, has a detachable headshell). On my Linn Basik Turntable with a Shure VN5MR Cartridge, I acheived surprising synergy and sound that bested over half a dozen other turntable/cart combos including the Linn LP12, Oracle Alexandria, and a Rega Rp3 in my system. The sound was warmer than most with great soundstage, extention, and organic realism (to give a feel for what I mean, the sound was open, natural and warm with great soundstage, but not dull like a Grado cart might move the sound nor bright like an Ortofon cart or some Oracle turntables sound to me).

I liked the sound so much that I had a Cocobolo plinth built for the Linn Basik turntable and made sure to leave the wooden top alone as the steel topped Linn LP12 sounded just that, a little steely.

After selling 2 LP12's 4500.00 and 3500.00 I got the Rega RP3 with the RB 303 arm. Then I got a smoking deal on another LP12 with a Black Ittok LVII arm and rebuilt it with a custom plinth. The Rega was sold and is crap IMO with a cheap plinth and not very good build quality. The Rega will work and I didn't think I'd miss the more expensive Linns I sold due to price, but after a few albums I realized the Rega wasn't for me. Best of luck.