I didn't take a camera, but here is their website.
www.ttweights.com
Just click on the link to the Black Onyx. There are a few nice shots. |
Sorry about that guys. I should have taken a camera. I did see a non assembled table, so I will try my best to describe what I saw, as well as what Larry told me of his machining process
The drive motor sits under the plinth, near the back outer edge, but just inside the outer edge of where the platter will end. The motors shaft protrudes up through the plinth, and is therefore hidden from sight once the platter is installed. The motor can be seen if you look under the plinth.
The motor shaft has 4 o-rings installed with these o-rings driving the outer edge of a sub-platter (idler wheel?). That sub-platter is somehow attached to the main platter. I have no more information since I did not see this sub-platter/Idler wheel installed on the main platter. I believe "Direct through o-ring coupling Idler Drive" may be a more correct description?. The motor is decoupled from the plinth with a carbon fiber mat, and the o-rings further decoupling the motor drive shaft from the sub-platter 'idler wheel'. This is identical to 'Christine', with the exception 'Christine' has her motor in the front left corner as opposed to the back left.
The main bearing housing is first installed onto the plinth, but with no hole drilled. The plinth is then bolted to one of the machines Larry uses to make aircraft parts. He first drills an ~1" hole dead center and true. Into this hole he inserts a piece of cryo treated porous Brass. As the brass warms to room temperature it expands. This brass insert sleeve cannot be removed, nor can it move, and is now drilled by the same machine, but different drill bit of course. A small recess was also drilled in the top of this sleeve for two reasons. To hold excess oil for the absorption by the porous brass, and to have extra oil so that no future oiling be needed. Larry told me that while the platter/bearing are seating themselves, you can see oil starting to show itself along the top edge of this porous brass. Cool.
The main platter bearing is carbide steel, with the thrust ball still being experimented with. Do they make carbide ball bearings?.
The platter is as described on his website, multiple layers of material.
The tonearm mount is decoupled from the plinth with carbon fiber, the bolts holding the TriPlanar tonearm (in his demo unit) are decoupled using brass washers.
The motor controller is a thing of technical beauty. There are three speeds, 33.33, 45, and 78. Each setting has it's own seperate fine adjustment. I do not know how many masters where made slightly off speed, but at least now I can experiment. |
I would agree with you Lewm. The motor for the Black Onyx is probably so quiet, that only one interface is needed. All I know is I feel in love with it as soon as I heard it. |
Well put Ken
Larry is a mad man on a mission. He is just as big a perfectonist as the rest of us. He will read your post, probably start experimenting with larger shaft's and O-rings, and decide if it is needed. I have no doubt having been to his shop, that retrofitting these changes on an existing table will not be a difficult process.
No different then my dealings with Frank Schroeder or Chris Brady, he is a man all about customer satisfaction. I can't wait for my Platinum Onyx, and what ever else Larry has in the wings. |
Alec, I too was waiting for Lew's answer. I will say that what I heard at TTWeights is exactly as Lew describes. The pitch control of the Black Onyx was something I have never experienced. Listening to the Black Onyx raised the hairs all over from top to bottom. When listening to Bruce Cockburn's singing, it was as if his voice hung in the air. I swear I could see his vocal cords moving. It was the best I had ever heard bar none.
When I listen to my tape drive Teres, I like the presentation. Up intil now I have never heard better. I will however say there is no comparison, the Black Onyx Idler drive is heads and shoulders above my Teres. I will go on record that I have never listened to an idler design before, so I cannot compare it to any other idler table. I do not doubt that Lew's Lenco is fabulous. The Saskia is, from what I have read, also in that 'fabulous' category. The new VPI idler recently won best of in one of the top magazines.
I should have my new table in the near future. |
I have really good news, and a little bitty bad news. Larry is a man on a mission. He is taking his table design to the nth degree. He is trying out even better motors then the one I heard. He is experimenting with other even more 'processing power' controllers, he is trying even larger plinth's that will accomodate 12" arms. I was suppose to have #0001, but now I have told him to send it to the Europeans, I will wait for the Platunum table. I will get back to you folks next week. Larry will have his prototype of the larger platinum up and running next week, and I have to hear it. I will go with the same albums, listen, and report back.
PS; It pains me to say: 'My JA Michell/Triplanar/ZYX Universe' smokes the EMM Labs CDSAse. I can't wait to hear Larry's new table, which originally easily bested my Teres 340. |
Hey Oil Man
The Black Onyx is in fact a rim drive. Larry has changed the wording of his little beauty.
My Teres was not a rim drive, it was still a tape drive. It is now sold, so I hope I remember what it sounded like. Maybe I had the setup wrong, but it never produced perfect pitch, if my wording is correct. The JA Michell is not as good as the Teres was, but I remember the differences. When I finally decide on which version of the Onyx to get, I should be able to give a more exact description on my system.
I am also breaking in a few pairs of the Shuguang Treasure CV181-z, so far they are not fairing well. |
HiFiTime
You are absolutely correct. Larry has already informed all who look at this table that O-ring replacement will be an integral part of maintenance. This will need to be done every couple of years, or, with extensive play, even bi-yearly. This is not different from changing the tape drive on my now sold Teres, the neoprene drive of my JA Michell, or the tubes in my amp. How many of us check VTA, VTF, Anti-skating, Azimuth (all as the cartridge breaks in), levelling, cleaning of records, etc., etc., on a monthly basis.
An even bigger problem however is getting the platter out of the bearing 'before' changing the O rings. The tolerance's are sooooooo tight, that this is an execise in patience. You literally have to lift the platter, allow the air to enter and pass through the Olite sleeve, and keep lifting. I do not know how long this will be, but seconds are not the time scale used, minutes may also not be the time of this event, we are talking possibly hours. When seating the platter in the bearing, you literally have to install the recommended amount of fluid into the bearing, oil the shaft, get the bearing in place, and leave. This is not a Plug and Play table. It may be hours before the platter has seated itself. This is a design parameter I am willing to live with. From what I heard the first time I listened, I was floored. Nothing could have prepared me for that experience. Changing the O-rings, that's an excercise in passion. It may be needed/better to remove the arm, turn the table upside down, put shims under the plinth and let gravity do the work on releasing the platter, change the O-rings, and start the process over. Remember; It is not the destination, but the journey. I love playing with my stereo (though not as much as listening).
I for one am willing to go through this ritual. With the amount of time I spend retesting and matching 6SN7, 12AT7, and 12SX7 tube's (28 in total between the Atma-Sphere MP-1 and MA-1), in my amp and preamp, changing 4 O-rings on a Sunday afternoon seems not too bad. We are all excessive compulsive's. This is just another thing we get to do on a Sunday afternoon to achieve our ultimate goal; Live Music In The Home. |
I will be visiting Larry again this week. I will take the same albums, relisten, and get back to you all. But, having said that;
I too will have a second look at the O-rings. Another 'BUT',: having looked at the website, thought, and used my tiny little analytical brain, have come to a realisation:: 1) there are four O-rings, not one. This immediately says to me he has already thought of the torque and possible problems with 'creep', pitting, thermal expansion, bulging, etc.. 2) the O-rings appear in the photograph to be very well seated, and tight. Creap is not a concern to me. 3) Larry deals with Aircraft type tolerence's and products. I will ask, but I highly doubt, that he uses anything less then aircraft quality O-rings.
Case in point, his Olite bearing is used in military helicopters, this is because no other bearing can withstand the stress involved with helicopter rotors. I doubt a turntable will develop the same stresses, but he uses it anyways.
I will ask and querry Larry, but I already know he has addressed this topic in his equally little feeble brilliant mind.
LOL
Billy |
Sorry Cpk, you are absolutely correct, mine was an inappropriate comment. Larry is all brilliance. He reminds me of a new age Albert Einstein, and that is why I made the comment. He is both brilliant and simplistic at the same time. He is re-evaluating every decision he has made, and rethinking every aspect of his table. He is making sure, that when his table is ready, no stone was left unturned. My table is not yet ready, through no fault of Larry's. I told him to continue his quest, and to let me know when he is ready. He is a man on a mission, and I like that. He is trying out new combinations of everything.
To answer the O-ring question; He is using a non-molded o-ring. I can't remember exactly what he said, but 'formed' o-rings are much 'truer', they are also more expensive. This is why they are used in aircraft, and the Black Onyx.
These o-rings will not be user servicable. He wouldn't go into details, but these o-rings will not move. The drive shaft will be manufactured to be user replaceable. Larry has told me that this will not occur for a number of years, but replacement assemblies will not be expensive, $30.00 - $35.00. This is no different then replacing tape drives or rubber/neoprene belts. |
My little Black beauty has finally arrived;
Forget the fact that I have waited 3 extra months longer than I wanted.
Forget the fact that the shipping was UPS proof, with more bubble wrap than bubble boy has.
Forget the fact that upon unpacking even my wife was impessed with the velvet bag acroutements (did I spell that right?).
Forget the fact that I was too lazy to read the instructions and simply assembled it using common sense.
Forget the fact that I had no want or desire to deal with VTA, VTF, Azimuth, or any other parameter that I know is of importance. I just wanted to hear it as a starting point. Everything was lined up as a best guess.
First album was 'eURYTHMICs, touch', one of my wifes favorites.,,,,,,,,are you ready,,,,,,,. UNBELIEVEABLE. My wife gave me that 'what the heck just happened', Annie Lennox was playing for us in our basement. Forget soundstaging, highs, lows, PRAT, depth, etc.,,,,,,,. irrelevant. Annie was in our basement. Can you imagine what will happen when I actually take the time to adjust everything.
Are you ready for this; The screws supplied with my TriPlanar are not the same as Larry's. This simply means the Tri was not securely affixed to the arm board. The M5 screws I used simply held the arm at the proper spindle to pivot length. I AM IN AWE!!. Can you imagine what will happen when the Tri is actually firmly affixed?.
The JA Michell gyrodeck has been obliterated.
From my recollection of my Teres 340,....., no contest.
The roofing season is upon us. I am already really busy. I will take the time to set everything up correctly, but it will take time, and after that give further thoughts.
Larry, I have no objection to the system you have at your shop,....., but,....., you have no idea what you have created!!!!!!!.
Cousin Bill
PS If I wasn't in love with the most spectacular woman on the planet, I would ask you to marry me.
PSS If any of you out there would like to hear just how good the Black Onyx is, my home is your home. |
Thank you Doug and Hiho
I am going to go and do a bit more tuning. I'll let you know how it progresses.
Hiho; The motor shaft is driving the inside of platter, not the inside of the rim. You are correct in saying that an exterior motor driving the outside of the rim would have made changing o-rings easier. Larry may try that in the future.
Larry's next part is a remote arm mount. He is going to send it to me early next week. I will say he is obsessed with resonance control, and it shows in the table. There are way too many little tweaks that deal with this. I may one day sit down and list them all.
I will now conduct an experiment. First I will say I own an RS Labs A1 arm. That arm, when set up properly, is amazing. There is no way of bolting it down. It is meant to simply sit on the armboard. When I put the TriPlanar on last night, I did not have the proper bolts. The Tri reminded me of the RS A-1. There is a clarity in the mids and highs which for me is mesmerizing. I will listen to the Tri unbolted first, and then install the screws.
LOL
Billy |
My Black Onyx is back.
There is now a seperate stand alone armboard. Pictures are on Larry's website. Because my speakers are 17 years old, they are now the limiting component in my system. From memory it is ever so slightly better than the plinth mounted option, though I can't quite put my finger on why.
The large feet of the table no longer sit on carbon fiber pads, they now have a seperate coupling for each foot. I guess the carbon fiber was slippery, so minor movement of the table would affect spindle to pivot distance/alignment. No issue with the plinth mounted arm.
There is now a large copper plate 'under and attached to' the plinth. This probably aids in even more resonance control.
The housing that surrounds the motor is now filled with dampening material.
The things I originally loved about the table are all still there. I will go so far as to say there is even more space between instruments, though I had no complaints originally.
There are a few things I would like to note;
If I am using TTweights largest peripheral ring, the small knob of the TriPlanar arm touches the ring at the end of the album. I simply moved the remote armboard 2mm away, and moved the cartridge slightly further forward in the headshell. Obviously redid all tweaking.
When standing close to the table you can slightly hear the drive o-ring turning the platter. I tried listening for any indication of this between tracks, but heard non.
I remember the first time I read Doug Deacons post about using post-it notes for VTA adjustments. He stated each album had it's own fine setting for his Triplanar. I chuckled inwardly, and thought 'that'll be the day'. Opps!. My wife now gives me the thumbs up, or thumbs down. Thumbs up means raise the arm, too much base, or thumbs down for too much treble. Who invited her anyway!!!!. Post-it notes now on 15 albums. More listening tonight.
Cousin Billy
PS. Larry was over and heard the Atma-Sphere MP-1 and MA-1 combo, and, well, realised his rig at work was not so good. I love Ralph. |
