Popular Post wittao Posted March 31, 2021 Popular Post Share Posted March 31, 2021 We finished some weeks ago our first own developed USB card family’s first two pieces: - USB P24 - USB P24 OCXO I am planning to finalize on our webpage the USB card’s subpage. Some parameters about the cards: 1. USB P24: - 2pcs USB 3.0 port - low profile bracket option - normal bracket with external 24MHz clock input (miniXLR socket) - 4pin molex inside PSU connection (5V@1A DC) 2. USB P24 OCXO: - 2pcs USB 3.0 port - low profile bracket option - normal bracket with external 10MHz clock input (miniXLR socket) - 4pin molex inside PSU connection (5V@1A DC) - 24MHz VCTCXO in PLL with onboard 10MHz OCXO Can order from 15th April. If you need further information, please ask me. Thanks, Viktor Exocer and 87mpi 2 Manufacturer of Core Audio equipments www.coreaudio.eu Source: Core Audio DAIDO ULTIMATE + CA KARUNA ULTIMATE USB/SPDIF Bridge + CA DENPO ULTIMATE DAC Amplifiers: MBL 6010D preamp + MBL 9008A monoblocks Loudspeakers: MBL 101emkII, YG Hailey 2.2 Cables: TARALABS USB, Muse Digit, Muse IC + ZERO Evolution, Muse SP Link to comment
Popular Post wittao Posted April 1, 2021 Popular Post Share Posted April 1, 2021 11 hours ago, Savolax said: The prices (or approximates at this point) would be interesting to know and maybe a general designing and end product goals regarding the known top cards JCAT USB XE and Pink Faun USB Bridge Ultra OCXO. With this miniXLR clock connection the cards seem to have designed use just with your devices transmitting clock on such plug though? Hi Savalox, thanks for the question: “As far as availability and prices, I can share the following actual infos: - USB P24 card: 300 € gross enduser price Early bird introductory price: gross 250 € till May 31, 2021 - USB P24 OCXO card: 490 € gross enduser price Early bird introductory price: gross 400 € till May 31, 2021 We appreciate the loyalty of those already chosen our USB cards! Best regards: the Core Audio team” About the clock connectivity: i’ll share some pictures about the clock connection between our P24 system parts (music server - usb/spdif reclocker - dac) in the next few days, thank you for your parience. The reclocker (called KARUNA P24) have 4 clocks inside: 22.5792 MHz and 24.576MHz for the audio frequencies, 24 MHz for the USB connection via XMOS. The 10 MHz OCXO inside generate and control the PLL. We made 2pcs 24 MHz clock output to chassis with miniXLR 50ohm connectors. The reclocker can send the 24 MHz signal to the USB-card (USB P24) and the other one to the dac (DENPO P24). Used that 3 equipments all parts are on the same PLL and works like every part have a very good OCXO clock. That lift up the level of SQ. Of course the components works in stand alone version too. Comparison with high level cards (like Pink Faun, Pink Faun OCXO, Pink Faun ULTRA OCXO, JCAT Femto, JCAT USB XE, MATRIX Femto, PP V6 etc.): we listen a couple of weeks different cards and setups during the development phases. Included the cheapest 30-50USD normal PCIe USB cards too. It was necessary to know why so good or bad are some solution. Today i think the first class is the PF Ultra OCXO card. i didn’t can’t/want to compare our cards with these cards, that wouldn’t be a fairplay thing. I hope our customers will try them and compare and make a decision and write a review. Now we are in a development phase to make our flagship USB card too what use ASM chipset (the USB P24 and USB P24 OCXO use Renesas chipset, we found them a great sounding controller on the market). Thank you for your interesting. 87mpi and mikicasellas 2 Manufacturer of Core Audio equipments www.coreaudio.eu Source: Core Audio DAIDO ULTIMATE + CA KARUNA ULTIMATE USB/SPDIF Bridge + CA DENPO ULTIMATE DAC Amplifiers: MBL 6010D preamp + MBL 9008A monoblocks Loudspeakers: MBL 101emkII, YG Hailey 2.2 Cables: TARALABS USB, Muse Digit, Muse IC + ZERO Evolution, Muse SP Link to comment
wittao Posted April 1, 2021 Share Posted April 1, 2021 1 hour ago, matthias said: Yes, Taiko do not use the ASM. Very often there is no relation between specs and musicality so there is no way than to do a listening comparison. Matt Hi Matt, do you know which type of chipset is preferred by Emile? I didn’t find it. thanks, Viktor Manufacturer of Core Audio equipments www.coreaudio.eu Source: Core Audio DAIDO ULTIMATE + CA KARUNA ULTIMATE USB/SPDIF Bridge + CA DENPO ULTIMATE DAC Amplifiers: MBL 6010D preamp + MBL 9008A monoblocks Loudspeakers: MBL 101emkII, YG Hailey 2.2 Cables: TARALABS USB, Muse Digit, Muse IC + ZERO Evolution, Muse SP Link to comment
wittao Posted April 1, 2021 Share Posted April 1, 2021 6 minutes ago, OAudio said: Renasus UPD720202 from the package and circuit's pin out. The -711 variant is the -40 deg C temp range otherwise not sure what would attract the "industrial" commet if not this, there are only two variants. Yes, we are using the same. Manufacturer of Core Audio equipments www.coreaudio.eu Source: Core Audio DAIDO ULTIMATE + CA KARUNA ULTIMATE USB/SPDIF Bridge + CA DENPO ULTIMATE DAC Amplifiers: MBL 6010D preamp + MBL 9008A monoblocks Loudspeakers: MBL 101emkII, YG Hailey 2.2 Cables: TARALABS USB, Muse Digit, Muse IC + ZERO Evolution, Muse SP Link to comment
wittao Posted April 1, 2021 Share Posted April 1, 2021 1 hour ago, Nenon said: No DDCs between my server and DAC in my system anymore. @wittao - those are nice looking cards. I am interested to test one and write about it if you want to send me one. Now that we know the Taiko USB card would not be available to DIY, my alternatives for the new DIY server recipe I am working on are the JCAT XE and PinkFaun with ultraOCXO. Your reference card is worth considering as well. One thing that I can't get manufacturers to do is to give an option to separately power the clock than the card. Something for you to consider. Hi Nenon, first of all thank you for your kindly words. Of course we can discuss about the test card, the details we can fix in pm. About the USB cards and the design of our cards: I got a lot of question why planned that card with XO + OCXO PLL? Maybe it will be easier (and better?) to use 24 MHz OCXO on our cards than XO+OCXO? We have some year experience (our development teammates 15-30 years/person) HQ oscillator module development. At Core Audio we are using MasterClock panels (mono clocks, biclocks, triclocks with 1-2-3pcs XOs and 1pc OCXO) to make a great and most accurate PLL as it possible in our music servers, USB/SPDIF reclockers and DACs. We planned to transfer that technlogy into our new USB cards too. The XOs starting time is 1us, the USB controller chip's 500us. So 500 times faster is the XO as the Renesas chip. There is enough time for the XO to build up their accurate 24 MHz clock freq. The OCXO? It is much more slower, sometimes more than 1ms. But the card need enough time to start and the OCXO need enough time to heat up and fix the PLL (1-2 minutes). In our solution the XO, controller IC and OCXO have enough time with separately start, PSU line. It is some kind of "soft start" of the clock system and the clocks not push/pull the voltages on the card. The clocks are calm and works with lower distortions, freq movements. The noise floor is also important , our XOs can working on -105dB@10Hz phase noise and -120dB@10Hz with OCXO (an extra feature : when our card is connected to our music server's and reclocker's master clock PLL, the card can use across the MMCX clock IN port the better reference OCXO with -137dB@10Hz ... that is the reason for external miniXLR clock IN option on our cards on the normal profile bracket. In our new ULTIMATE Series we will use for all of our equipment and equipment's main part -147dB@10Hz phase noise reference clock, for example the P20 USB card will run with -141dB@10Hz phase noise clock signal). We didn't want to add a different PSU for the controller IC and the clock module. The separation of clock side (5V) and controller side (1.05V + 3.3V) is solved. We haven't any reason to add different PSU input to the card. BUT: Your question is absolute normally we will try to regulate the 5VDC/GND line to 1.05V and 3.3V for controller, the 12VDC/GND line to 5V for OCXO and XO. It will be a new development, i don't know if it will be finished this year (new P20 USB Card, new Reference Serie... lot of work :) ). Of course we need to listen both card and compare them, the different main voltages helps or not to increase the SQ. I am added a picture to this post. That is our basic 8 circuit PSU (120.000uF audiograde capacitors built in a Streacom FC10 case). There are normal ATX standard molex sockets + extra 3pcs 4pin molex socket: 1 x 5VDC-GND , 2 x 5VDC-GND-GND-12VDC. That 3pcs sockets are an extra separated PSU circuits from the music servers other circuits and can run with ultra low noise (under 20 uV on 5V rail with 2A load). Our customers can use easier and cheaper the USB-cards with a 4pin molex connectors. Not necessary to connect external PSU for USB card or ethernet card. (one of our customer solve that situation with our new card: he dismantled the clock IN miniXLR socket from the normal profile bracket and pulled the DC wires across the small hole... maybe in the near future we will make an own version, not easy to build it with good outfit and correct technical implementation. 87mpi 1 Manufacturer of Core Audio equipments www.coreaudio.eu Source: Core Audio DAIDO ULTIMATE + CA KARUNA ULTIMATE USB/SPDIF Bridge + CA DENPO ULTIMATE DAC Amplifiers: MBL 6010D preamp + MBL 9008A monoblocks Loudspeakers: MBL 101emkII, YG Hailey 2.2 Cables: TARALABS USB, Muse Digit, Muse IC + ZERO Evolution, Muse SP Link to comment
wittao Posted April 2, 2021 Share Posted April 2, 2021 5 hours ago, Dev said: Hi Victor, Fascinating development and the boards do look excellent. Very clean layout as well. I am currently using JCAT USB XE and would be interested in the USB P24 OCXO version. I agree with Nenon now that the Taiko USB card is out of DIY market, this would be a viable option given that you are using the same Renesas chipset. However, I am curious why didn't you choose to add an external input power connector in the PCI bracket to power it from externally power supply instead of only having a 4-pin molex internal connector ? The JCAT card actually has both - an internal molex as well as an external 5.5/2.1mm DC input so that it could be powered in both ways (and off-coarse from the PCIe if none of them are connected). Hi Dev, thanks for your comment. We are looking for a solution how to upgrade a card with external DC across the bracket (maybe our users can choose an option: external DC or external clock IN) The onboard dc socket wasn’t an option, it makes a degradation in SQ. Dev 1 Manufacturer of Core Audio equipments www.coreaudio.eu Source: Core Audio DAIDO ULTIMATE + CA KARUNA ULTIMATE USB/SPDIF Bridge + CA DENPO ULTIMATE DAC Amplifiers: MBL 6010D preamp + MBL 9008A monoblocks Loudspeakers: MBL 101emkII, YG Hailey 2.2 Cables: TARALABS USB, Muse Digit, Muse IC + ZERO Evolution, Muse SP Link to comment
Popular Post wittao Posted April 3, 2021 Popular Post Share Posted April 3, 2021 Some pics about the OCXO version: Exocer, 87mpi and Topk 1 1 1 Manufacturer of Core Audio equipments www.coreaudio.eu Source: Core Audio DAIDO ULTIMATE + CA KARUNA ULTIMATE USB/SPDIF Bridge + CA DENPO ULTIMATE DAC Amplifiers: MBL 6010D preamp + MBL 9008A monoblocks Loudspeakers: MBL 101emkII, YG Hailey 2.2 Cables: TARALABS USB, Muse Digit, Muse IC + ZERO Evolution, Muse SP Link to comment
Popular Post wittao Posted May 17, 2021 Popular Post Share Posted May 17, 2021 At the end of this week the first package of our USB P24 cards are shipping to the customers. Thank you guys for the patience! Viktor Exocer, Nikhil, NanoSword and 5 others 2 6 Manufacturer of Core Audio equipments www.coreaudio.eu Source: Core Audio DAIDO ULTIMATE + CA KARUNA ULTIMATE USB/SPDIF Bridge + CA DENPO ULTIMATE DAC Amplifiers: MBL 6010D preamp + MBL 9008A monoblocks Loudspeakers: MBL 101emkII, YG Hailey 2.2 Cables: TARALABS USB, Muse Digit, Muse IC + ZERO Evolution, Muse SP Link to comment
wittao Posted October 26, 2021 Share Posted October 26, 2021 Thank you for that great comparison and long test, and also congratulation for JCAT for their great card! We are ready now with the newest version of USB P24 OCXO rev1. The differences : - 1pcs USB port 3.0 - 1pc molex 4pin PSU (internal) connection … 5V@1A (our advise: 1.5A is safely better but works absolutely fine with 1A). 1pc DC 2.1-5.5mm external DC input (jumper selected between internal or external) 3pcs extra capacitor on DC output stage If the user dosn't need 2pcs USB ports, our advise is this version. Also can be order the new USB P20 OCXO card: ASMedia host controller IC 1pcs USB port 3.0 - 1pc molex 4pin PSU (internal) connection … 5V@1A (our advise: 1.5A is safely better but works absolutely fine with 1A). 1pc DC 2.1-5.5mm external DC input (jumper selected between internal or external) 4pcs extra capacitor on DC output stage 10 MHz in and 10 MHz out Clock connectors on the card (can connect to ETH25 OCXO ethernet card and use the same clock signal for both cards… it gives better result in stream solutions) Hope you will make more interesting tests and comparisons. Regards, Viktor Exocer 1 Manufacturer of Core Audio equipments www.coreaudio.eu Source: Core Audio DAIDO ULTIMATE + CA KARUNA ULTIMATE USB/SPDIF Bridge + CA DENPO ULTIMATE DAC Amplifiers: MBL 6010D preamp + MBL 9008A monoblocks Loudspeakers: MBL 101emkII, YG Hailey 2.2 Cables: TARALABS USB, Muse Digit, Muse IC + ZERO Evolution, Muse SP Link to comment
Popular Post wittao Posted February 17, 2023 Popular Post Share Posted February 17, 2023 As i see thanks to Marcin the topic is running again :) I would like to join to the conversation, show our new PCIe cards: - USB P20 OCXO usb card (based on ASMedia chipset, external DC 5V option, Core Audio's XO + OCXO PLL, communication port with our music servers) -ETH25 OCXO ethernet card (external DC 5V option, Core Audio's XO + OCXO PLL, communication port with our music servers) Both card can use the "daisy chain" option, one is the host of 10 MHz PLL the other is a slave, can connect via MMCX-MMCX cable. Used this solution the slave card's OCXO and PLL will switched OFF and the host card's 10 MHz OCXO PLL will make for both 20 MHz and 25 MHz the PLL. Price range is ca. 950 EUR/ea, included normal and long bracket. Can be ordered from 1st March, production time is ca. 4 weeks. (the oldest USB P24 OCXO rev2 Renesas based card will be also available from 790EUR/ea, with external 5V DC input option) IMG_5853.HEIC IMG_5854.HEIC Exocer, OAudio and Dev 1 2 Manufacturer of Core Audio equipments www.coreaudio.eu Source: Core Audio DAIDO ULTIMATE + CA KARUNA ULTIMATE USB/SPDIF Bridge + CA DENPO ULTIMATE DAC Amplifiers: MBL 6010D preamp + MBL 9008A monoblocks Loudspeakers: MBL 101emkII, YG Hailey 2.2 Cables: TARALABS USB, Muse Digit, Muse IC + ZERO Evolution, Muse SP Link to comment
wittao Posted February 17, 2023 Share Posted February 17, 2023 9 hours ago, Superdad said: It does take care. But not as much money as you state. You just need one of these: https://www.microsemi.com/product-directory/phase-noise-and-allan-deviation-testers/5565-53100a#overview. Plus a couple of good external OCXOs to connect for cross-correlation. It is an industry standard which has been built and sold under several names (TimePod, Symmetricom 5120A, Jackson Labs PhaseStation) for many years. Measures down to about -140dBc/Hz at 1Hz, and -178dBc/Hz at 1KHz About $23K. It is what we use. No, unfortunately that equipments aren't enough to measure the exact phase noise datas. We are using to measure our masterclocks and cards Rohde&Schwarz FSUP and R&S FSWP analyzers. Totaly different level. Of course the price range too... In addition about Crystec's 957 series oscillators: the theoretical parameters are ok and gives to the engineers important informations. Earlier (5-6 years ago) we used that Crystec oscillators in our USB/SPDIF converters 24 - 24.576 - 22.5792 MHz freqs and works well but unfortunately in the PCB the oscillators working different then alone connected to the measurement equipment... -90dB@10Hz is a typical phase noise at that oscillators. We dropped them finally and started to develop our own oscillators. That is true, the newst Crystec modells has better parameters but in audio industry the better parameters not equal always with better SQ. Manufacturer of Core Audio equipments www.coreaudio.eu Source: Core Audio DAIDO ULTIMATE + CA KARUNA ULTIMATE USB/SPDIF Bridge + CA DENPO ULTIMATE DAC Amplifiers: MBL 6010D preamp + MBL 9008A monoblocks Loudspeakers: MBL 101emkII, YG Hailey 2.2 Cables: TARALABS USB, Muse Digit, Muse IC + ZERO Evolution, Muse SP Link to comment
wittao Posted February 17, 2023 Share Posted February 17, 2023 5 minutes ago, MarcelNL said: PF shows phase noise as <-130dBc/Hz at 10Hz, the jump in SQ between the regular OCXO and the ultra is considerable....not being able to measure phase noise there is no way to correlate one to the other. Yes, i tried the PF USB card without OCXO and normal OCXO, then Ultra OCXO. The final sound quality jumped high and high. Gavin1977 1 Manufacturer of Core Audio equipments www.coreaudio.eu Source: Core Audio DAIDO ULTIMATE + CA KARUNA ULTIMATE USB/SPDIF Bridge + CA DENPO ULTIMATE DAC Amplifiers: MBL 6010D preamp + MBL 9008A monoblocks Loudspeakers: MBL 101emkII, YG Hailey 2.2 Cables: TARALABS USB, Muse Digit, Muse IC + ZERO Evolution, Muse SP Link to comment
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now