|
|
Post by HD Music & Test on Sept 1, 2023 13:04:10 GMT
All I can say is this is going to be rather good, Both Leo & myself have invested heavily in phase noise measurement equipment, I am in the processes of tabulating a master list of reference clocks with their cleimed spec's and real world measurments. Assembling a team of five gents with wide varying systems who are not brand hoggers or buy with their eye's or review type of chaps. Hoping we can assemble around 15 or so master clocks for a FAIR & genuinelly honest comparison right across the price spectrums.
Will also produce videos of the testing as well if I can find the time!
|
|
|
|
Post by julesd68 on Sept 1, 2023 18:39:35 GMT
Five gents? Where are the audiophile ladies? It's crazy this game seems to be so male dominated ... I'm keeping my powder dry and will await the reputable, sound of mind and body, gentlemen's testing results. But I sense that the second hand market will be awash with 1st gen LB clocks before too long.  |
|
|
|
Post by HD Music & Test on Sept 2, 2023 14:13:47 GMT
Five gents? Where are the audiophile ladies? It's crazy this game seems to be so male dominated ... I'm keeping my powder dry and will await the reputable, sound of mind and body, gentlemen's testing results. But I sense that the second hand market will be awash with 1st gen LB clocks before too long. We have music loveing ladies clients a single dozen and these are real music lovers not kit swappers, they would only be interested in a finished product to try, they have busy lives listnening to muci as apposed to worrying about what new toy 'x' does over the previous 'x' lol
I suspect not that many current LB clocks will come up for sale, the new one is a very different product aimed squarely at the audio section with performance & connectability in mind Jules. |
|
|
|
Post by julesd68 on Sept 2, 2023 14:51:46 GMT
Five gents? Where are the audiophile ladies? It's crazy this game seems to be so male dominated ... I'm keeping my powder dry and will await the reputable, sound of mind and body, gentlemen's testing results. But I sense that the second hand market will be awash with 1st gen LB clocks before too long. I suspect not that many current LB clocks will come up for sale, the new one is a very different product aimed squarely at the audio section with performance & connectability in mind Jules. Ah, is that a coded warning that it's going to be very expensive Tony?? |
|
|
|
Post by brettj on Sept 3, 2023 0:36:13 GMT
I'm very interested in the final LB product.
|
|
realfx
Rank: Soloist
Posts: 18
|
Post by realfx on Oct 6, 2023 14:19:12 GMT
I am in the processes of tabulating a master list of reference clocks with their cleimed spec's and real world measurments. Hi. Have you been able to test or measure any of the Afterdark clocks? If so, what opinion do you have of them? Thank you! |
|
|
|
Post by HD Music & Test on Oct 14, 2023 9:15:18 GMT
Apologies all windows updated and I lost a lot of passwords, well now back.
|
|
|
|
Post by HD Music & Test on Oct 14, 2023 9:20:41 GMT
I am in the processes of tabulating a master list of reference clocks with their cleimed spec's and real world measurments. Hi. Have you been able to test or measure any of the Afterdark clocks? If so, what opinion do you have of them? Thank you!
Hello realx
I have along with many other timing devices both audio and non audio.
My suggestion would be to try one for yourself and see what you feel, personally I do not use them, I don't use a cybershaft either while I do have both of these makes (and many others) in my range of clocks that I have.
Like many products in life not just audio, they obatin internet cult fanboy status while the real performance may not live up to the hype. Only in a one on one situtaion will you then be able to obtain a real world perspective imho.
|
|
realfx
Rank: Soloist
Posts: 18
|
Post by realfx on Oct 14, 2023 10:04:21 GMT
To help you chaps with setting up the Bodnar GPS ref clock and keeping at peek performance for Audio I would suggest the following setting highlighted below. Make sure you have the most up to date firmware see link below: Bodnar clock firmware download pageREAD the MANUAL FIRST Connect up clock to your pc of choice via the usb cable and make sure they are talking to each other. Place your GPS anntena is a good spot high enough in the room to maximise gps tracking consistancy. From six years using these devices I have found the following setting below to give very good results. Yes a good LPS makes a difference as does as impedence matched quality cable as well.
MAKE SURE YOU SET OUTPUT ONE TO 10000000 or 10Mhz in factory trim it reads 100Mhz
Looking at the settings you recommend, is it better to use only one output of the LB for optimum performance? I’m asking cause I was thinking of using one output to DDC and another to R26. |
|
realfx
Rank: Soloist
Posts: 18
|
Post by realfx on Oct 14, 2023 10:06:07 GMT
By the way, which is the latest LB clock firmware? 1.17?
|
|
|
|
Post by HD Music & Test on Oct 14, 2023 10:25:32 GMT
I actually don't know sorry, pretty sure one of the chaps on here will be able to assist with that. On Wednesday after being in bed for three days with the blasted flu I ventured out the EDS in Coventry to take a look at our next lab aquistion and I missed Leo on the Teledyne Lecroy stand by a few minutes! (timing eh? lol) he had left one of his new 30pS rise time generators to try on Wavemeaster 8000HD.
The demonstration unit was only a 33Ghz unit with a paultry 160GS/s  with a rise time of 11pS  You can double the sample rate to 320GS/s if you have a large enough bank balance 
Its absolutely warp drive fast with 20 cores as standard and it computational abilities for filters/eye/pcie/usb4 are just bonkers.
Its not that large or heavy either, I have a space mapped out in the lab, now just need to find a few kidneys
|
|
realfx
Rank: Soloist
Posts: 18
|
Post by realfx on Oct 14, 2023 10:32:23 GMT
In your recommended setting you pointed out (in a yellow window) to enable only output 1. Did you recommend to use just one output for better performance or it was just to disable the unused output?
|
|
bencat
Rank: Quartet
Posts: 355
|
Post by bencat on Oct 17, 2023 10:53:23 GMT
I have noticed at various times the LB Clock will lose the signal and stay with the red light blinking for a considerable time . Then later in the day it will lock again and be stable . Is this normal or is there a fault with the LB that might need attention ? I at first thought this might be just that I need to set the LB via PC again but having done that and putting it back in the system it would be stable but then later that same day it would again lapse in to the blinking mode . Presume this it not being able to lock on to a GPS signal I have tried a few different places for aerial but this still happens .
|
|
|
|
Post by stellabagpuss on Oct 17, 2023 12:21:21 GMT
Antenna placement is important, if you can...place near window, just like a car sat nav.
And your location can make a difference, if you are in a basement flat, that's not ideal, if the antenna can see the sky, that's half the battle.
|
|
realfx
Rank: Soloist
Posts: 18
|
Post by realfx on Nov 4, 2023 11:13:05 GMT
I have noticed that when I enable only the output 1 the output 2 LED is always blinking. Is this normal behaviour? I´m asking cause if I enable only the output 2 the output 1 LED is off.
Thanks in advance.
|
|
bencat
Rank: Quartet
Posts: 355
|
Post by bencat on Nov 4, 2023 21:43:20 GMT
Mine does the same .
|
|
realfx
Rank: Soloist
Posts: 18
|
Post by realfx on Nov 5, 2023 8:47:07 GMT
I received the following kind answer from Leo Bodnar himself.
Output 2 is special in a sense that it provides 1PPS output when it is disabled. This is what its LED is indicating.
Output 1 is fully off when disabled.
Output 2 has extra circuitry for 1PPS output but we have not found any difference in performance — you can use either.
I would suggest using Output 2 for your signal and disable Output 1 if LED blinking is annoying and you don’t need 1PPS for other purposes.
|
|
sqml
Rank: Soloist
Posts: 18
|
Post by sqml on Nov 14, 2023 2:46:52 GMT
Hi guys, first time poster long time lurker here. I was able to use BNC male to BNC male adapter from the LB clock to Kitsune singxer SU-2 DDC. I just have to reset the LB clock and it worked. Sounds completely different. Was using 12" Amphenol RG58 cable from amazon. With the amphenol cable sounds a little muddy on complex songs. With the adapter directly, sounds absolutely live, but a little forward.
|
|
|
|
Post by John on Nov 14, 2023 6:31:29 GMT
It might be worth playing with different cables to get a less forward sound
|
|
bencat
Rank: Quartet
Posts: 355
|
Post by bencat on Nov 14, 2023 12:52:04 GMT
Sorry I am a little puzzled by what you say you use . Both the LB Clock and the Singer have word clock outputs on BNC sockets . So are you using a BNC to BNC cable for this connection or BNC adapters to RCA and an RCA cable ?
A BNC to BNC cable would be best . The LB Clock outputs at 50 OHM but reading the details of the Singer there does not seem to be any statement on the External Clock inputs OHM loading . If this is 75 OHM 9lots of hifi units use this then you may find that a 75 OHM BNC to BNC cable with a 50 OHM through plug at the LB end works better than a 50 OHM cable . But this is not the same in all systems so you may well find a decent 50 OHM BNC cable is best there is mention of some trials done here that give advice on the best ones to use .
|
|
with a rise time of 11pS 
