Which is the Better Tonearm - Pro-Ject or Rega?

Rotarius - here's a link that explains some of the advantages of casting. Granted, it talks to steel, but wouldn't the same be true of any metal?

http://www.afsinc.org/content.cfm?ItemNumber=6931

One valid point about casting...

"It puts the metal where it is needed"

Here's another link that measures attributes of the Rega 301 arm against other arms...

http://www.hi-fiworld.co.uk/index.php/vinyl-lp/70-tests/104-arm-tests.html

Also a quote from Wikipedia...

"which has a now tapered cast alloy tube[22] that offered greater rigidity and better control of resonance"  

As for your statement...

"So maybe Rega uses cast pieces for economic reasons"  

It took them over two years of R & D to get it right -  "economic reasons" - I doubt it.

What you say may have some merit, but I think Rega's reputation and track record carries more weight than your conjecture.

Regards...

but I think Rega's reputation and track record carries more weight than your conjecture.

+1

Williewonka, that link talks about weldments and welded joints etc.  Please, this is not relevant to the topic at hand.  I design pressure vessels for a living, I know my materials as well as the quality of castings coming out of China (we buy by the boatload).  I am not going to  argue about elementary material science on an audio forum....believe what you must.  I am out.

Seadweller - 

I am on my 3rd ProJect table and currently have the latest incarnation of the carbon 9cc evolution.

Some of its positive virtues are:
- Rock solid bearings without any slop at all
- Tracks exceptionally well
-Setting up VTA is simple and straight forward
-Simple to adjust perfect channel bias (verified w/ test record)
- Achieves ideal LF resonance range (also verified w/ test record)
- Can typically set up a cartridge perfectly in under 30 minutes (with caveat for anti skate noted below)
- Comes w/ 3 weights to accommodate any cartridge and the included scale is within .05g as compared with a digital force gauge
- stock wiring is pretty good (caveats below)

Some of the negatives
- The tonearm lift and arm wand rest are pretty cheap
- The anti-skate post (fishing tackle) only offers 3 settings so I've always generally set them up w/ too little than too much
- Unless purchased with as a bundle with a table, seems a little expensive for what it is.
- Wiring lugs are very very soft and delicate (common)

After looking up the audiomods tonearm after following this thread, I do like the idea of having the micron adjustment for VTA and it might be fun to put one together from kit.  That said, after reading a 6moons review I personally don't see it as an upgrade (most notably the bearing slop noted).

Take care

Greg

Greg - a comment on the  the Audiomods review by 6Moons - it  was completed in 2012 - Jeff (Audiomods) appears to have taken note of comments from that review - the more recent  arms now come with much better ceramic bearings :-)

I have the Series II with the new ceramic bearing and I cannot detect any "bearing slop" as noted in the review.

Regards...