Click title to read one, or click date to read all below it.
01-02-12
Hello, i currently own an et-2 and an et-2.5 tonearm. my et ... Ketchup
01-02-12
Mods for et2 removed heatshrink from arm tube removed foam f ... Dover
01-03-12
I still have the original 2.0, but plan to upgrade to the 2. ... Mkiser
01-03-12
Dover, what was involved in having a custom armtube bracket ... Mkiser
01-03-12
hi dover – i’d love to see a picture of the set up, wiring, ... Ct0517
01-03-12
I recently took advantage of the .5 upgrade i had bruce perf ... Slaw
01-03-12
Slaw, your pictures came through. looks good! you mention ... Ketchup
01-03-12
Ketchup, i thank chris for putting me on to this. adding so ... Slaw
01-03-12
chris, i don't know exactly what wire i'm using right now ... Ketchup
01-03-12
Guys i wish we started this thread when i was off work last ... Ct0517
01-03-12
Away on holiday so can't do pics at moment Dover
01-04-12
Hi ketchup – that phoenix wire looks interesting – is anyon ... Ct0517
01-04-12
Chris, funny, this morning i happened to see the post where ... Ketchup
01-04-12
Thx for the link ketchup will read through - olimanmojo, rus ... Ct0517
01-04-12
Great tonearm. i have used one for many years and now sits o ... Frogman
01-05-12
I have used an et-2 since they first came out. it is now mo ... Apbiii
01-05-12
On weight placement: whether you want the weights close to ... Apbiii
01-05-12
hi frogman are we to take your words literally ? the cart ... Ct0517
01-05-12
Thanks ct, i seem to remember reading in past about the hose ... Apbiii
01-05-12
have a look at this hi apbiii – i would much rather be wh ... Ct0517
01-05-12
****are we to take your words literally ? the cartridge is a ... Frogman
01-06-12
Frogman, do you mean 19 was a little too much and ... i thi ... Apbiii
01-06-12
Apbii, yes 17 was the best in my system. but keep in mind th ... Frogman
01-06-12
My account is all buggered up – cannot login – but able to n ... Ct0517
01-06-12
Chris, do you sill have the springs in your tnt? i have see ... Apbiii
01-07-12
Apbii – you can see what i did to my tnt in my virtual syste ... Ct0517
01-08-12
Great, informative thread that any airbearing tonearm user c ... Oilmanmojo
01-08-12
Re compliance of the i beam springs: my et2 came with two i ... Frogman
01-08-12
In brief summary - don't want to get too much involved here ... Dertonarm
01-08-12
Dertonarm's observations are spot on, and mirror mine. his ... Frogman
01-08-12
I wanted to back up here a bit in regards to my system and m ... Slaw
01-08-12
..... i posted my "virtual system" only for the so ... Slaw
01-08-12
Oilmanmojo, thanks a lot for posting about your tonearm wir ... Ketchup
01-08-12
Frogman... as a funny antidote... are you any kin to r. vand ... Slaw
01-08-12
Another important factor as far as my limited experience is ... Slaw
01-08-12
Oilmanmojo, daniel thanks for chiming in here with your exp ... Ct0517
01-08-12
Slaw, i will post a picture of my et on my tnt6 next time my ... Frogman
01-09-12
Dear chris, i preferred the ikeda silver litz - here in par ... Dertonarm
01-09-12
From the et2 manual: *****it is desirable in most cases (lo ... Frogman
01-09-12: Ct0517
Hi Frogman - both my I-Beams have a single spring in them.
Thank you for the wire info Daniel.
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I havent figured out how to convert a bitmap to text. Need to download some program. Quicker to type it out :^(
Adjusting the Arms Mass.
From the manual page 9
Adjustable effective mass
The effective mass of the tonearm is adjustable both vertically and horizontally. The arm has low-medium mass vertically and medium to high mass horizontally. Four counterweights allow the vertical/horizontal mass to be changed. For example: if the user decreases the amount of counterweights used ,and moved this position back (higher on the scale number) the horizontal inertia of the tonearm would go down and the vertical inertia would go up.
Decoupled Counterweights
The effective mass of the arm horizontally is equal to to the sum of its component parts (It does not pivot) it needs to be as light as possible for low mass, however, making the arm too light sacrifices rigidity.
DOES MOVING THE WEIGHT OUT NOT MAKE IT LESS RIGID – A NO NO for this type of arm)
By decoupling the counterweight system horizontally, but not vertically, the mass is of the counterweight is not seen by the cartridge above a certain frequency.
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Now what I am hearing.
See first sentence under decoupled counterweights again.
IT NEEDS TO BE AS LIGHT AS POSSIBLE FOR LOW MASS, HOWEVER, MAKING THE ARM TOO LIGHT SACRIFICES RIGIDITY.
In my system when I replaced the counterweight bolt with a longer one and added a “little” more weight closer to the spindle there was noticeable bass change and overall presentation. I made the arm I believe more rigid by doing this. You can hear it in the sound. Based on the music you listen to and more importantly "the cartridge" you may prefer this or not. How much weight you add is a variable. The extreme limiter is bottoming of the spindle - but you will "hear" sonic problems “rumble” long before that according to Bruce - I have so far added just a bit more lead with no issues. I am not done with this yet.
I have discussed this with Bruce and he told me as the manual says that by doing this I am increasing the horizontal inertia but also he said that I am “increasing the vertical weight”.
VERY IMPORTANT
Don’t try this until you have figured out how to properly setup the arm. Level platter/level Spindle/Cartridge setup properly..
Bruce also told me that the effect will be different by cartridge/compliance. So I cannot say that you will get more or less bass attack or solid/leaner overall sound by doing this because -I don’t know what cartridge you are using and the compliance. I am basing what I am hearing on two test Empire 4000DIII MM cartridges 30 x 10(-6)cm/dyne that were mounted on an ET-2 and ET 2.5 at 19 PSI that I did my comparisons with in 2011.
This is a mod I feel u need to try for your own system/room / music preference because it costs nothing to do. Bolt was .75 cents. Lead weights are free from auto shops or order some from Bruce.
Cheers
Ct0517 (System | Reviews | Threads | Answers | This Thread)
01-09-12
i think what he's talking about here is the construction of ... Ketchup
01-09-12
The whole paragraph from page 9 of the manual: "the ef ... Ketchup
01-09-12
Ct, as i quoted before, moving the weight further out on the ... Frogman
01-09-12
Frogman - thx - yes i agree - i will contact bruce and get t ... Ct0517
01-09-12
****throwing weight at the i-beam near the spindle pivot doe ... Frogman
01-09-12
Frogman... this was just a humorous ( i guess to me only ) a ... Slaw
01-09-12
You can also buy shim stock in just about any thickness to m ... Ketchup
01-09-12
" ain't this fun " makes me feel like a little k ... Ct0517
01-09-12
Slaw, sorry i missed that. :-) Frogman
01-09-12
Ketchup i cannot access my virtual system yet either. Ct0517
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