Ct,
Well, first of all, I like both the design and execution. I had two, but never really set one up well, and sold one to a gent in Australia along with a few cartridges. He wanted an arm for his sp10, so I tried my et2 on one of mine to see if it would fit. Around the same time I acquired a surge tank and very quiet Wisa pump. Anyway, I set one arm up on my sp10-2 and the other on my lenco L75 PTP and took my time setting them up, and you know, I was really impressed. Then I wanted to get an oem template and mag arm, which came attached to another arm. This last pair came on a whim offer which was accepted.
I have a thing for out of the box thinking, interesting design and small manufacturer craftsmanship. The et2 fits in with my audio mods, Helius, sme, alpha son arms..
So to answer you question, I don't know. |
Manitunc Oh, lord, got two more et2s. Oh - lordy - lordy - lordy - lordy - lordy - you now have five. Maybe one will be a 2.5 with the high pressure manifold. A dear friend of mine has 3 young children - all girls. But wanted at least one boy. They tried one more time even though times are tough. The next one was a boy. So Four kids. He next had done to him what they did to his dog :^0 - so no more kids. I hope you get a 2.5 in one of the two coming to you. Otherwise Bruce can act like the stork and miraculously bring you a 2.5. You just need to send him one of your ET 2's as a donor. He can even customize it to run at the pressure you desire. Now you can maybe sell Richard one of your extra Mag wands that he desires ? Me thinks you like this ET2 Manitunc ? Is it possible to tell us in a few words what made you buy 5 ? |
Hi RugyBoogie -
Your part is travelling 3000 miles.... the earth itself according to google is 25,000 miles.
You have quite the analog arsenal. Looking forward to your 2.5 impressions as I'm sure others here are.
Cheers |
Manitunc.
Now you are just being greedy!
Got to be fun, running all those arms.
cheers. |
Oh, lord, got two more et2s. Maybe one will be a 2.5 with the high pressure manifold. 3 more arm wands too, one definitely magnesium. Up to 5 now, so 2 go on the SP10mk2 and two on the Lenco PTP. Have to think about No.5. Maybe on the Empire 208. |
Received an e-mail from Bruce, ready for shipment in another week or two. Waiting for a fitting that I am sending him.
It's a quick connect air fitting ala Kuzma Airline, part is $5 bucks but has to be shipped 3000 miles....
Slaw, no problem with tools etc, trained as a cabinet maker. Will contact you via pm once I get the ET up and running. |
Dgarretson: Regarding your statewment about fashioning a tonearm wire from AN silver. That is on my list also. I'm seriously considering your "egg beater" design in the final product. Isn't that the whole point of these forums? To learn from others?........
A note. I'm considering drilling a slot on the opposite side of the ET armwand so one channel can exit from either side, thus a more stable tonearm wire set-up. IE: less opposing force, get it? I think it can be done without sacrificing armwand stability.
If you conceive it before me, I want the royalties. |
Rubyboogie: Sorry, I just assume others have access to the necessary equipment for these things. After cutting the pipe in half you could fashion an end piece. It can all be sealed by silicone. |
Rugyboogie: If you set your mind to it, you can make a trough fairly easily. Get the appropriate diameter pipe. Cut it in half. Find an adhesive similar to the 3M and GO FOR IT! It's really not that hard. |
Do you think there is a markup for medical equipment?
http://www.ebay.com/itm/Hiblow-Air-Pump-SPP-6GA-for-Tosoh-AIA-600-Immunoassay-/170637232077#ht_3419wt_1161
I just purchased the same pump on ebay for less than $50. good thing Bruce didnt see this. |
You raise a good point, Chris. It's those little details amd oversights on the part of a seller that are deal breakers for me when considering a used item. IOW, if the seller was so careless as to not even make sure the points of the cones are in the cups, what other things was he careless about that might have even more important ramifications re the condition of a fairly delicate piece of equipment? |
I don't even see a shipping price as this appears to be a US sale only.
I know a couple people looking on this side of the 49 parallel but they cant buy it.
I don't blame the seller - he's probably dealth with irate Canucks as US/Cdn customs are a huge - PITA. sorry just venting a bit.
As a seller I would have at least made sure the presentation is good.
if this was a car ad two of the four tires are not even touching the road in the first ad.
That ET2 will never get past the first groove if left in that condition - for those considering one. |
What's with the shipping on the 1st add? $150!!! Yikes!
Is that for him to deliver it himself?
Tim |
$1100 for that table with ET2 and cartridge is a fantastic buy; can't believe no one has snatched it up yet. |
|
|
"I broke the audiophile rule - don't change more than one variable at a time."
Guilty! |
Thanks you posting the reply. I will read over it a little later. I just mounted a Benz RubyZ think it sound fantastic.
Tim |
Something wasn't made clear in the my last post. Once installed the damping trough function is easily engaged and dis-engaged by just turning the paddle screw knob which raises and lowers it. The tip from Bruce was the paddle just touching the fluid not slugging its way through.
Cheers |
10-12-13: Flemke
What effect does the damping trough have on the arm? Tim - I have tried to answer your question the best way I can in parts. Here is Bruce's testing results with and without the damping trough. THE CARTRIDGE USED WAS OF VERY LOW COMPLIANCE AND THE TONEARM WAS SET UP SO THAT A HIGH AMPLITUDE HIGH Q RESONANCE EXISTED. The graph and text below taken from the manual. Damping Trough ResultsSurface irregularities on the vinyl of the LP record are the primary cause of rumble or
random low frequency noise, which causes the tonearm/cartridge spring system to start
oscillating. This oscillation occurs continuously during playback. It is a primary cause of wow and flutter and FM distortion in phono playback. Surface irregularities occur not as a part of the record cutting process, but result from the molding process used in making the record.
You can see visually small ripples on the surface of an LP as it is turning. These continuously excite the tonearm resonance.
TONEARM MEASUREMENTS
A LOW FREQUENCY SWEEP WAS PERFORMED TWICE ON A THE TONEARM, ONCE WITHOUT DAMPING AND ONE WITH THE DAMPING TROUGH. THE CARTRIDGE USED WAS OF VERY LOW COMPLIANCE AND THE TONEARM WAS SET UP SO THAT A HIGH AMPLITUDE HIGH Q RESONANCE EXISTED. THE RESULTS OF THE TEST SHOW A REDUCTION IN THE AMPLITUDE OF THE RESONANCE OF ABOUT 8 DB (HORIZONTAL). NOT SHOWN IS THE VERTICAL RESONANCE WHICH WAS 15 HZ WITH THIS CARTRIDGE AND WAS REDUCED ABOUT 2DB. The ET-2 Damping Trough Owners Manual is available here for download for anyone from Bruce' site. http://www.eminent-tech.com/Manuals/ET2damping.pdfMy personal experience has been. The manual is very clear not to install the damping trough until you thoroughly understand how the ET2 works. I error-ed and installed it very early on. Then removed it for a number of years and re-installed earlier this year. When experimenting with magnetic damping earlier I broke the audiophile rule - don't change more than one variable at a time. I tried it again later in isolation - inconclusive - meaning - magnetic damping doesn't do anything for me. The trough was re-installed and is staying on my ET 2.5. In three tries Manitunc didn't get one. I think they end up in a drawer somewhere and are forgotten? So they are rare. If anyone has one guard it for later use. They can get messy and the tip from Bruce was use only 1cc of fluid. As I am interested in a 2nd one for my ET 2.0 if RugyBoogie can convince Bruce to do a run with a group buy consider me in as well. As far as sonically what I hear - I prefer Frogman or Slaw to give us impressions as they have been using the trough for a long time continuously. I will say the trough makes this linear tracking tonearm sound more "linear" in response to me. it does smooth out the bumps in the road especially on some of the nasty lps I own - those vinyl surface irregularities can sometimes imo lead to sibilance and harshness. The trough has made these lps very playable for me. Cheers. |
I don't have a damping trough on any of my arms. Rugy, what upgrades are you getting and are you talking about a group purchase the troughs? If so, I am in. |
Was told that "troughs" are no longer available.
Sent my ET-2 in for upgrades which should be ready in few weeks.
Wonder if we get enough people together to make a group purchase that Bruce may make them available once again.
Anyone interested ?
|
What effect does the damping trough have on the arm?
Does Bruce still sell them?
Tim |
Manitunc - did a damping trough come with any of your three ET2's ? |
yeah, saw the ad. My system has enough going on without adding a step down transformer. |
|
Manitunc.
Sounds like you are going to build a shop air supply. Cool.
Don't forget to earth the air lines close to the arm. Don't know if you would need 3 earth lines or just 1. Suspect 1 would be best.
What pressure do the Wisas run into the arms?
thanks |
Yeah, I am now looking into creating an air supply system to run all 3 off a single supply. I intend to include separate filters for each arm and central water collection off the surge tank. I have a medical grade air pump, but I could just use my Wisas, either alone or parallel into the surge tank. I need to get a better guage and regulator to try playing with different air pressures. right now I only have one running, on the PTP Lenco L75 along with a Helius Aurora 10". I need to go back through this thread one evening to remind myself of the various tweaks others have found helpful. |
You now have ET2 triplets Manitunc - impressive. |
|
"All my spindles are the same size" maybe they are all 2.5's manitunc? :^) my ET 2.0 spindle appears to be about 5/8 inch. The 2.5 is about 3/4 inch. Here is a picture of the inside that ketchup was nice enough to post earlier on. http://i272.photobucket.com/albums/jj177/picswamp/20121124_150329s_zps44708d12.jpgIf you push yours out you can see the condition of it and determine if it needs cleaning. Bruce used to put the initials HP on 2.0 and 2.5 manifolds to indicate high pressure versions. |
I think I've got the 2.0 with the magnesium arm. All my spindles are the same size |
to my knowledge other than the different larger 2.5 spindle
all other changes are "under the hood" in support of it.
The I beam/leaf spring and lead weights;
and the different armwands are interchangeable between 2.0 and 2.5 |
I have no direct experience with the 2.5, but my understanding is that the larger diameter spindle also has a tighter gap between it and the manifold's interior creating a stiffer bearing. Chris can give you a much better description. |
Yeah, its the step that suggests to me its a magnesium arm, but it should arrive today, so I will check. That being said, is there any other difference between a 2 and a 2.5 than the spindle or manifold size? |
As Chris says, it's difficult to tell the 2 spindle from the 2.5; but not impossible. I can usually tell when it's a 2.5. Look at the diameter of the spindle in relation to the diameter of the arm wand. In photos, the 2 spindle usually looks to be about the same or slightly larger in diameter as the original aluminum arm wand or smaller than the magnesium. The 2.5 spindle clearly looks wider than the original wand and about the same or slightly larger than the mag. Based on the pic in the ebay link, I believe Manitunc has a 2.
BTW, there seem to be two different magnesium wands. Mine (I bought it years ago right after Bruce started making them) does not have the "step" in it's diameter toward the rear of the arm. |
You can put a Mag wand on an ET2 or a ET2.5. The gooseneck - the joint part that connects the wand to the spindle is the same design for both allowing for this to happen. One of the dark secrets - imo - for ET2, ET2.5 owners is why Bruce never bothered to put a ET 2.5 label on the ET 2.5 manifolds. They all say 2.0. It makes it very confusing because when looking at pictures themselves, the part you see - the spindle - it is impossible to tell. Its like an illusion. But when comparing the ET 2.0 and ET 2.5 in person it is very obvious. The ET 2.5 is bigger in diameter. The actual diameter measurements are published here "somewhere" . 5/8 inch rings a bell but not sure. or does the spindle look like this ? http://cgim.audiogon.com/i/vs/i/f/1366417696.jpgManitunc - Please compare with your others and let us know. You may have an ET 2.5 on your hands. Cheers |
It looks like the arm is the magnesium version. Isnt that what came with the 2.5? Is there any other way to tell? |
Yeah, I have 3. Or will have when it gets here, one for the lenco ptp, sp10 and then maybe the empire 208.
Cool air supply though. |
|
Hi Richardkrebs 10-03-13: Richardkrebs
Second thoughts....nope. I only want the mag wand and the sleeve/spindle. All other parts would be discarded. I imagine it might be a bit challenging producing these parts for a DIY enthusiast. Given you have access to CNC machines and a fully qualified engineer at your workplace who could design something for you, it surprises me given your criticisms of the ET design in this thread. There are companies that can design and fabricate these components for you. Here is a link to a company that could do the engineering design and fabrication... http://www.dovermotion.comCheers |
Manitunc.
Thanks for that. I thought that you would want to keep it, but it was worth a shot.
Cheers. |
Nah, I like them too much |
Second thoughts....nope. I only want the mag wand and the sleeve/spindle. All other parts would be discarded. |
You can get new arms from ET. I just bought one from Bruce a couple weeks ago.
Tim |
Hi Richardkrebs,
I was anticipating the presentation to the forum of your new arm which you were intending to build. Are you having second thoughts ? |
Manitunc.
Hi, if you are interested in on selling the arm without the jig, I would be interested.
please let me know.
thanks
Richard. |
Yeah, I picked it up. Didn't realize the carbon arm, but I really wanted the jig. This is my third. |
|
|
