Been listening a couple hours today. SC-Pure Clocks have definitely opened up today. On Sunday I did a couple hours and they weren’t like this. If you get SC-Pures be patient for 7 full days. Leave them powered as much as you can. I probably had mine powered for at least 85% of that time.
Raspberry 5 Released!!!
https://www.raspberrypi.com/products/raspberry-pi-5/
on Ian stuff, if we plan this latest option, hopefully this will accommodate already existing and happening plans without much limitations.... particularly on the power terms which not it says 5V with 5A @ 27W.
From my end about to start the streamer and dac build plan which needed to analyze more detailed way to plan better....
https://www.raspberrypi.com/products/raspberry-pi-5/
on Ian stuff, if we plan this latest option, hopefully this will accommodate already existing and happening plans without much limitations.... particularly on the power terms which not it says 5V with 5A @ 27W.
From my end about to start the streamer and dac build plan which needed to analyze more detailed way to plan better....
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I came from the default clocks on the FiFoPiQ7. From what I heard yesterday yes I prefer them. They really do have to settle in. There are minor changes at first power up, but after 7 days the soundstage opens up - at least that was my experience and if you look at what others are saying that is the biggest improvement. I found better bass as well.
Hello,
A more spacious sound can also be created by improving acoustics.
Why would theaters and recording studios focus on acoustics and we, the music lovers just spending more and more on our gear?
After a small investment ( compared to electronics and speakers) you will notice that the sound can be enjoyed in a greater area of your room.
Even news announcement on the simple stereo set combined with my plasma screen sounds better.
Greetings Eduard
A more spacious sound can also be created by improving acoustics.
Why would theaters and recording studios focus on acoustics and we, the music lovers just spending more and more on our gear?
After a small investment ( compared to electronics and speakers) you will notice that the sound can be enjoyed in a greater area of your room.
Even news announcement on the simple stereo set combined with my plasma screen sounds better.
Greetings Eduard
I need more listening time but I would say in general - “same but better” - so all the qualities of the original clocks and similar timbre and tones but more clarity, deeper and wider with more instrument definition and tighter bass. But for me it’s a bit hard to describe these things. It’s like a good wine. You know it right away but to put in words is sometimes difficult
+100 to @eduard
In any case FWIW I think that everyone should also consider to audition clocks at room temperature or at running temperature (my clocks sound consistently better around 45 minuts after turning them on from cold.. It is probably the only appliance in the house I am keeping on all the time with good will, killing for instance tv red off status led with a hard switch..)
In any case FWIW I think that everyone should also consider to audition clocks at room temperature or at running temperature (my clocks sound consistently better around 45 minuts after turning them on from cold.. It is probably the only appliance in the house I am keeping on all the time with good will, killing for instance tv red off status led with a hard switch..)
I think this is a good point. My music room has “grass cloth” wallpaper and acoustic tile in ceiling and maple hardwood floors with an area rug and a couch cabinets etc.
The wallpaper and the hardwood seem to complement each other and the natural wood I think helps. I haven’t messed with acoustic treatments specifically yet. I have recently put my speakers on stands which also helped….
After 7 days have you tried going back to the stock clocks? It would be particularly interesting to put in one stock and one Pure to compare the two. Same tune but different sample rates would make for an easy A B comparison of just the clock impact.
Hello,
We did not hear much lately about the stove Ian designed to keep the clocks at a certain temperature.
The new clock have a big volume so they will take longer to reach a certain temperature.
The French ( again!) published an article about thermal distortion in solid state gear. The idea behind the solution ( have to find it my library) was to keep the transistors at a temperature a bit higher than normal to keep the lowest and highest temperature during actual use closer together.
If the clock during ticking generates some heath we could try keeping the heat inside. Maybe it is possible to make a kind of ''cover'' using some visco elastic material and a 3D printer??? Remember the '' rubber '' part of a washing machine door that some people did '' clamp '' around their turntable platter.
It could be that there are some solutions that just could be judged by measuring.
Greetings, Eduard
P.s A few days ago i mentioned a trick i used in the past to increase internal height of a chassis. I made a new chassis for my Virtue Sensation that i use in my cinema setup. The circuitboard is mounted onto the aluminium bottomplate but i have access to all soldering joints because i can remove the cover that closes the two big rectangular holes. If you mount that cover at 15 mm distance by means of metal stand offs you can create extra height. Usually you will have 15 mm free space under your chassis if the feet you are using are let us say 20 mm height. This way you can create some extra airflow if you like. Same trick can be done at the top plate.
We did not hear much lately about the stove Ian designed to keep the clocks at a certain temperature.
The new clock have a big volume so they will take longer to reach a certain temperature.
The French ( again!) published an article about thermal distortion in solid state gear. The idea behind the solution ( have to find it my library) was to keep the transistors at a temperature a bit higher than normal to keep the lowest and highest temperature during actual use closer together.
If the clock during ticking generates some heath we could try keeping the heat inside. Maybe it is possible to make a kind of ''cover'' using some visco elastic material and a 3D printer??? Remember the '' rubber '' part of a washing machine door that some people did '' clamp '' around their turntable platter.
It could be that there are some solutions that just could be judged by measuring.
Greetings, Eduard
P.s A few days ago i mentioned a trick i used in the past to increase internal height of a chassis. I made a new chassis for my Virtue Sensation that i use in my cinema setup. The circuitboard is mounted onto the aluminium bottomplate but i have access to all soldering joints because i can remove the cover that closes the two big rectangular holes. If you mount that cover at 15 mm distance by means of metal stand offs you can create extra height. Usually you will have 15 mm free space under your chassis if the feet you are using are let us say 20 mm height. This way you can create some extra airflow if you like. Same trick can be done at the top plate.
Attachments
I finally got up nerve to charge my UC pack.
In the manual it says current can be 1000A.
Is that a typo. The fifoPi clean 3.3v can’t possibly draw that much current. Does the UCPureIII board control the current from the UCaps ?
I wouldn’t want to bring one of these through Pearson security gates 🤪
In the manual it says current can be 1000A.
Is that a typo. The fifoPi clean 3.3v can’t possibly draw that much current. Does the UCPureIII board control the current from the UCaps ?
I wouldn’t want to bring one of these through Pearson security gates 🤪
In the lower frequencies the 22/24 has better specs,(phase noise) and the bass is fantastic in my setup. My SC clocks have been powered on all the time for 6 days, and I think they are very good sounding. Compared to Accusilicon 338, they are better in all aspects, period.
I don’t think it’s a stove, just double EM shielding. Sure it will insulate (as well as absorb and radiate) some heat but that’s not its purpose.
The matching that you describe is indeed a fine method keep transistors and other solid state components closer to their design points, which may matter a lot in a system with dozens or hundreds of components. For a VCXO package it is unlikely to matter much - just a handful of components and also close together so with a relatively common temperature. Note also that with greater temperature come higher noise floors: Johnson noise.
If you would want to control temperature for lower jitter or greater stability, then you need to know the temperature sweet spot for the oscillators. It would be a fun experiment to find out, but you’d really need to measure and have some means to actually control the temperature to a certain set point. Note that “that Italian guy” has repeatedly shown that temperature control did not matter to close-in phase noise.
The matching that you describe is indeed a fine method keep transistors and other solid state components closer to their design points, which may matter a lot in a system with dozens or hundreds of components. For a VCXO package it is unlikely to matter much - just a handful of components and also close together so with a relatively common temperature. Note also that with greater temperature come higher noise floors: Johnson noise.
If you would want to control temperature for lower jitter or greater stability, then you need to know the temperature sweet spot for the oscillators. It would be a fun experiment to find out, but you’d really need to measure and have some means to actually control the temperature to a certain set point. Note that “that Italian guy” has repeatedly shown that temperature control did not matter to close-in phase noise.
It’s been charging for 2 hours. D8 hasn’t come in yet.
The switch is in the off position…