What is my tonearm??

I'd say that the RB-300 is probably the weak link with that table. But there are a lot of nice options for tonearms with the Rega geometry. I am a big fan of the Audiomods arms.

I have one also. Basis used to (maybe they still do) sell these with the 2000 and 2001 turntables as an entry level arm. They have a smooth sleeve instead of threads on the outside.

If you want a big upgrade in your sound replace this with a Basis Vector tonearm. It is a drop in replacement. They come up for sale occasionally. I replaced mine with a Basis Vector 3 and the improvement was amazing.

Do not buy a Basis Vector tonearm for the 2200 - 2800 models. You need the low cup model for a 2000 or 2001.

You should check with Basis to see if the Vector arm is a good match with you Lyra cartridge. Just send an e-mail with the Lyra specs. I think it should be fine because the weight and compliance of the Lyra is similar to my Shelter 901.

Aren't the rega 250 & 300 typically black? Seems like it looks like a 600??