Hello Alun. I use an original koetsu rosewood [circa 1980]in my ET-2. When I had to send it to Japan for a rebuild, I used both the shelter 501 and a grado statement with very good results. The et-2 lends itself to a wide assortment of different cartridges.Hopefully others will chime in here. All the best.
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I concur with the above comments.
At the time I had my et-2, I was most frequently running wood bodied Benz (an M0.9). I heard wonderful sounds coming out of my former collaborator's et-2 with an Ortofon SPU Royal N which is on the stiff side of a Koetsu.
So ... good results I've heard have been from medium to fairly low compliance. I'll leave it to others to comment on high compliance cartridges.
Thom @ Galibier
Alun, here's some reasonably concise information from the SME web site about the ranges for high, medium and low compliance, and why it all matters:
With one compliance unit (lcu) equivalent to l x l0-6 cm.dyne, a low-to-moderate compliance design has a relatively stiff stylus cantilever suspension in the 8-15cu range. The medium compliance range runs approximately from 15 to 25cu, while very softly suspended cantilevers fit in the high compliance range, from 25 to 50cu. In the bad old days when low frequency trackability was just about the only well-regarded performance parameter, cartridge compliances over 60cu were achieved, the Empire ZX1000, for example...
And Galen Carol Audio also has a good explanation at their web site:
Thank you Rushton,those were good reads, however I'm a little confused as the effective mass for the ET tonearm is given in two planes, vetical (7gram) and horizontal (25-35 grams). If the vertical is the mass I use to help, it goes against the low compliance figures that Bruce Thigpen has recommended.
Alun, confusing is right! The horizontal mass is what creates the challenge for cartridge matching and why a medium-to-lower compliance cartridge works best in the arm. And, with respect to our more mathmetically inclined forum members, I think it's easy to get *too* caught up in the compliance calculations. There's a lot more going on in the cartridge/arm interactions, and a lot more going on with the cartridge itself, than is reflected just in the compliance/mass calculation data. My philosophy has always been to use this piece of information to make sure I don't have a major mis-match, but not to obsess over it. The only real test is going to be how a given cartridge actually sounds in the arm, to the point of the original question you posed.
To echo Thom's comment on his experience, I expect that any medium-to-fairly low compliance cartridge will work just fine in the ET arm, choose based on the sonic characteristics important to you and the rest of your system.
Hi Alun. Yeah, nice idea in theory anyway. However,in practice... it's not really that "semi rapid" as properly adjusting the ET-2 to employ the other wands and cartridges is somewhat labour intensive and time consuming to say the least.Even more so if your working with a suspended table.I periodically swap wands between an original koetsu rosewood,grado statement and a recent koetsu rosewood red and each change is a minimum 15 minute ordeal for even the most experienced set up man.