Eminent Technology ET-2 Tonearm Owners

Yes when you talk to Dover and I you are conversing with the future.

Richard/Dover – have you figured out a way to tell me how the stock markets will open in Toronto or New York ?

Small correction to my previous post. humidity is good I have found for vinyl (as we deal with static), but not good for ESL’s especially my Quads which are very sensitive to levels. They like it really dry. So its like being between a rock and a hard place in a way. Still Quad 57 and 63 are designed differently. Some info I got from a respected rebuilder - The 63 panels will be destroyed soon if placed in rooms with high humidity. Not as hardy as the 57’s – now there’s an oxymoron for you.

The Acoustats do not seem affected by humidity – are they like Hercules of ESL’s ? Both in their ability to withstand conditions over time and accept wattage without problems. Wondering if this is due to the amount of space between the mylar?

Cheers

The base of the ET2 is mounted with one bolt and has 3 grub screw spikes for proper leveling on any surface or armboard.
We have discussed removing the aluminium shim. If your worried about marring your surface, Dover had mentioned filing down the grub screw points.

Can the bracket be improved or .......removed...? Another material? It is the part that holds all of the goods.

Cheers

Can you please advise (and of course fellow posters) what speakers you were using in your system when you set up the loose counterweight decoupling method.

I am interested in this approach and its effect on the sound, particularly in the bass region. Thank you.

For clarity: the question in my last post was addressed to Mr Dover.

I have been researching possible bearings for a new Arm and I came across the Kuzma web site and the Airline Arm. This appears to be unique in using a porous material rather than multiple drilled holes like the ET. It also has a sliding sleeve instead of the sliding spindle of the ET

Wow this is a spectacular looking arm which is definately on my wish list.

This brings me to the subject of horizontal effective mass again. I asked them for this figure for the Airline. It is probably not appropriate for me to publish this here, since it was a private conversation and the number is not shown in their specs. But I can say that it is higher than my heavy modified ET2 arm. We went on to talk about potential problems with cantiliver flex. His response was the resonant frequency due to the combination of a typical low compliance cartridge and horizontal effective mass was in the region of 2.5 -3.5 hz.(this has been published by them elsewhere), this is well above the 0.55 or 0.75 hz for 33 or 45 rpm eccentric records. Therefore the cartridge does not "see" this movement.

He directed me to a video of the arm and cartridge tracking the lead out grooves with a oscillation amplitude of 12mm. See www.Kuzma.si ,tech support,tech info, Airline video.

This Video was posted by them to allay fears of cartridge damage due to high horizontal mass.

This arm is amongst the best currently available. It has a large differential between its vert and horizontal effective mass figures and does not appear to be a cartridge killer.

I'm sure you will agree that this motion is violent and way beyond what any record eccentricity would produce. He assures me that there is no problem with the cantilever under these extreme circumstances.

I want one.