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Micro Seiki MA 505 Arm - how good is it?

I have a Micro Seiki MA 505 Mk I arm on my Spacedeck. I am wondering just how it rates against more modern - and expensive - arms such as, say, a Kuzma Stogi Reference, a Graham Phantom, a Triplanar, an Ortofon, or maybe an SME M2.

The arm is being used with a 15g AT headshell and extra sub-weight with a Koetsu Rosewood and the sound is truly excellent. It certainly sounds a lot better than the SME IV which it replaced (which sounded boring with just about any cartridge I tried with it). The MA 505 is also more versatile and by using different headshell weights I am able to use a wide variety of cartridges with it.

The real test of course is how it sounds, and it really does sound excellent, and I have nothing to complain about, as I did when I had an ARO on my LP12 (sounded thin and lightweight) and the SME IV (boring). And yet I have a nagging doubt that I should be spending a lot of money on a more recent arm, particularly as the MA 505 was not even one of Micro Seiki's "high end" arms.

I'd be interested if anyone has any thoughts on how the MA 505 Mk I compares to more recently produced and more expensive arms.
rossb

Showing 2 responses by lewm

lewm
12,433 posts
 
I own an MA505 MkIII and like it very much. These are the weaknesses in the design, as I see them: (1) Too many pressure-fit connectors between cartridge and preamp. You have the headshell to arm tube, arm tube to pivot assembly, pivot assembly to phono input (via DIN plug). These might not be any problem if you are using an HOMC or MM cartridge but might degrade the signal if using a LOMC. (2) Tonearm counter-weight is not in the plane of the LP. (3) No azimuth adjustment.

Of course, not all modern, big-buck tonearms are without at least some of these same design flaws.
lewm
12,433 posts
 
Now he tells me!
Sadly for me, I sold my MA505 MkIII long ago. Azimuth or no azimuth, I regret the decision.
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