Eminent Technology ET-2 Tonearm Owners

Oh dear, Andy Payor doesn't know what he's doing either.

He's just added distortion by incresing the weight of his arm.

The world according to Dover.

05-19-13: Ha_ha_he_man
Hi,
I was wondering when someone will add something useful to this thread that is more in line with modifications with results as opposed to a subjective debate?

Regards
Alx
Ha_ha_he_man

Alx – Much is covered at the beginning of the thread.

Based on my 10 years now with the ET2 and ET2.5.

The recently discussed aluminum gooseneck is very nice but it is unique and costs a lot to make (labor wise). A few hundred dollars. I received only a few emails of interest so far. I am willing to pursue reproductions if more interest is shown.

The biggest mods in my 10 years with the ET2 and ET2.5 has been the quality pump, wiring loom and the leaf spring mod.

For those reading who do not own this tonearm.

The ET2 is like a race car.
It can be tuned for our rooms/gear which represent the different tracks.
For a plug and play audiophile this can represent disaster. A bad nightmare.
If you are plug and play and your dealer sets up your cartridge for you or a friend does it – stay away.
It must be obvious by now to anyone reading here that if your are using an ET2 or Et2.5;

you need to be thinking about what you are doing.

If not mistakes will happen; the poor cartridge is always the victim; even though we feel bad ourselves about it.
So many adjustments can be made.

RichardKrebs
This is very hard to reproduce and I do not hear this effect with light linear arms when carrying low compliance cartridges.

Richard your arm started life as an ET 2.0. We have already discussed here how for a really low compliance cartridges the ET 2.5 works best with the double or triple leaf spring.

05-16-13: Dover
Spock15
I currently own an ET2, Naim Aro & Hadcock unipivot and have just sold off my Bluenote Borromeo ( Titanium tubed unipivot ).

Congratulations Dover on reacquiring an ET2.

Frogman introduced the leaf spring mod to us early on in this thread.

One is able tune this tonearm with different leaf springs (single, double, triple) corresponding to the stiffness of the cantilever being used, and the reactions of the resonances in each of our rooms; and to stay within BT’s decoupled design.

Based on my direct experience I encourage both Richard and Dover to order some loose leaf springs and a Two I Beams from Bruce to make up a double and triple I-Beam setup.

I look forward to impressions of a low compliance cartridge with the double and triple leaf spring.

I have already mentioned here I base my vinyl tuning on what I hear with master tape dubs at 15 IPS.
I start the LP then 10 seconds later the tape. I toggle between the two.

I don’t have any issues with my XV1 when I use the double and triple spring in my room.

I believe you can have your cake and eat it too with the double and triple leaf springs and to stay within Bruce’ genius design.

Chris,

The thicker spring results in a higher resonance frequency. Thanks

brucet

Chris,

You always want the horizontal natural frequency of the counterweight to be less than the cartridge/arm resonance, this is the case 98% of the time.
The natural frequency of the I-beam/leaf spring depends on the thickness of the spring, the amount of weight, and where the weight is on the beam. The natural frequency goes down as the weight moves further out on the beam which is where we want it to be.

brucet

Cheers

Welcome to the thread Ha_ha_he_man.

Not a bad moniker :^)

CT0517
Based on my direct experience I encourage both Richard and Dover to order some loose leaf springs and a Two I Beams from Bruce to make up a double and triple I-Beam setup.

I look forward to impressions of a low compliance cartridge with the double and triple leaf spring.

I modify my recommendation. It applies to Dover only.

RK you have come down too far a path with your Krebs arm. You are truly enjoying it. I would never ask you to do something unless you are curious yourself. If you did pursue it you would need to implement a wiring scheme similar to Frogmans - to be the least intrusive on the ET2 based on your plinth design.

Dover is about to reacquaint himself with an ET2 and a sound that is very .. well I really like the word that Spock15 used alot ....persuasive.

I am sure his system must have changed in the years that have passed.

Cheers

Richard/John47 thanks for making me curious about the damping trough again.

Arrived the in mail one kit from Bruce.

This kit reminds me of my flu shot ?

I don’t like needles and syringes.

But it went on real smooth

I think Frogman still has his paddle lifted not touching ?

I think SLAW is however still liquified ?

Added 1 CC per Bruce’ instructions – paddle just touching.
Its been over 8 years for me in using one. Will report back later ... so far pretty good !

Cheers