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RS241

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  1. Next try: In this respect it would be interesting to hear from @louisxiawei and @wolft if they have heard of any progress with that update tool ?
  2. ... sorry it should have read: In this respect it would be interesting to hear from @louisxiawei and @ wolft if they have heard of any progress with that update tool ?
  3. Regarding firmware upgrade and Linux compatibility I received this statement from T+A: Linux is not officially supported by the DAC8DSD as operating system for the USB source. T+A has never claimed that the DAC8 or DAC8DSD are Linux compatible. According to our tests DAC8DSD works with Linux sources with PCM up to 192/32 and with DSD up to DSD128 (DoP). Updating the DAC8DSD firmware is normally not necessary. There is no difference in sound quality between the different versions of DAC8DSD firmware. Also there are only some minor new features. List of new features for DAC8DSD and firmware version of introduction: V 2.20: Auto Power Down feature V 2.30: Additional volume display mode (Volume display either in dB or volume steps 1...63) V 2.60: Service routine for flashing Amanero USB receiver firmware Support for new remote control hanset FM8 Support for MusicNavigator APP (via MP8) V 2.70: Additions for "Roon Ready" in combination with MP8 The major improvements were the "Roon Ready" feature and the control through the T+A Music Navigator App. Both features are only available in combination with the network player MP8. In this case the necessary firmware update will be done by the MP8. So for the moment according to T+A there is no need for firmware updates, except when using a DAC8DSD in combination with a MP8 and in this case MP8 takes care of the necessary updates. An other quote from T+A regarding Linux + DSD512: We have made extensive tests with the latest Amanero firmware versions and we still found some glitches like occasional distortion when playing back DSD512 from a Linux PC. As long as these problems are not completely solved we will not officially release a Linux compatible DAC8DSD firmware. I think that those who want to try the latest Amanero firmware on their DAC8DSD an update tool like mentioned above would be a nice thing to have. It would give total freedom to use any of the original Amanero USB receiver firmware versions and to experiment. If they are buggy it would be easy to go back to the standard Amanero firmware. The only disadvantage of changing over to Amanero firmware is that the DAC8DSD will be detected as an Amanero device by the computer and thatthe Amanero (Windows) driver will have to be used instead of the T+A driver. For Linux this does not make a difference. In this respect it would be interesting to hear from @louisxiawei if he has heard of any progress with that update tool ?
  4. ... something obviously went wrong. Can't edit my foregoing post. So here an other try with the service doc S0133_Erasing_Amanero_Firmware_DAC8DSD.pdf
  5. I had a chat with a T+A technical guy on Munich HighEnd show last week about this topic. Here in brief the most interesting things: 1.) T+A is really working with Amanero on this topic 2.) The T+A USB receiver hardware is identical to Amanero 3.) Any Amanero firmware will run on the DAC8DSD (so in principle any of the new versions could be flashed into the DAC8DSD) 4.) Currently T+A uses Amanero firmware 1096c and CPLD version 1080. According to T+A these give the best results. 5.) T+A is currently testing new Amanero firmware versions and will release them as soon as everything works flawlessly. 6.) Now the tricky part: How to upgrade existing DAC8DSD ? T+A recommends to send them in for firmware upgrade. This would be the "official" way. Can it be done by the user without sending the DAC8 in ? In principle: yes - but.... The "but" is this: for re-flashing the firmware you need to have access to the Amanero firmware server with the T+A log-in credentials. T+A is not willing to disclose these (as T+A has to pay license fees for each programming). So there is no access to the original T+A/Amanero firmware. But [see 1.) and 2.) above] the original Amanero firmware could be used. This would mean the T+A DAC would be seen as an Amanero device by the computer. This is because re-flashing with with the Amanero original firmware would re-program the USB VID and PID to the Amanero standard values in stead of the T+A PID/VID for DAC8DSD. So the T+A drivers for DAC8DSD will not work any more and the original Amanero drivers will have to be installed on the PC (at least on Windows PCs - no idea what will happen with Linux based sources). HowTo reprogram The "official" way is described in this T+A document T+A RS232 Interface document for DAC8DSD But I got hold of T+A Service Document S_0133 describing a "quick and dirty" way to erase the USB receiver firmware. After erasing the USB receiver is in a virgin state meaning that now any Amanero firmware can be flashed into it.
  6. I had a chat with a T+A technical guy on Munich HighEnd show last week about this topic. Here in brief the most interesting things: 1.) T+A is really working with Amanero on this topic 2.) The T+A USB receiver hardware is identical to Amanero 3.) Any Amanero firmware will run on the DAC8DSD (so in principle any of the new versions could be flashed into the DAC8DSD) 4.) Currently T+A uses Amanero firmware 1096c and CPLD version 1080. According to T+A these give the best results. 5.) T+A is currently testing new Amanero firmware versions and will release them as soon as everything works flawlessly. 6.) Now the tricky part: How to upgrade existing DAC8DSD ? T+A recommends to send them in for firmware upgrade. This would be the "official" way. Can it be done by the user without sending the DAC8 in ? In principle: yes - but.... The "but" is this: for re-flashing the firmware you need to have access to the Amanero firmware server with the T+A log-in credentials. T+A is not willing to disclose these (as T+A has to pay license fees for each programming). So there is no access to the original T+A/Amanero firmware. But [see 1.) and 2.) above] the original Amanero firmware could be used. This would mean the T+A DAC would be seen as an Amanero device by the computer. This is because re-flashing with with the Amanero original firmware would re-program the USB VID and PID to the Amanero standard values in stead of the T+A PID/VID for DAC8DSD. So the T+A drivers for DAC8DSD will not work any more and the original Amanero drivers will have to be installed on the PC (at least on Windows PCs - no idea what will happen with Linux based sources). HowTo reprogram The "official" way is described in this T+A document T+A RS232 Interface document for DAC8DSD But I got hold of T+A Service Document S_0133 describing a "quick and dirty" way to erase the USB receiver firmware. After erasing the USB receiver is in a virgin state meaning that now any Amanero firmware (from the Amanero web site) can be flashed into it. Warranty I think if you brick your DAC8 by erasing/reflashing the USB receiver this will not be covered by warranty. So it is in your personal responsibility if you do it. On the other hand: erasing and re-programming can be repeated as often as you like. So if one firmware version does not work properly there is a way back - even to the original 1096c version. Only the Amanero driver will have to be used in stead of the T+A driver. This of course means that re-programming can not be hidden. A re-flashed DAC8DSD can always be recognized by not having the original T+A PID/VID values.... Anybody dares to try this ? I think I will wait for the official release of new firmware and let T+A do it.... RS S0133_Erasing_USB_Firmware_DAC8DSD.pdf
  7. Yesterday I found this document on the T+A website: http://www.ta-hifi.de/fileadmin/software/rs232/DAC8_DSD_RS232.pdf It describes how to control the DAC8DSD from a PC via RS232. Interesting is chapter 3.2.11 -> Service Mode 97 : "Erase & re-program USB receiver firmware" Is this what we need to install the latest Amanero USB receiver firmware ?
  8. According to this information from the T+A website the MkII model of the MP 2000 R can do DSD512: http://ta-hifi.de/fileadmin/pdf/r-serie/Specifications_MP2000_R_MKII.pdf I contacted T+A for details and I was told, that all MkI models also support DSD512 even though in the brochure only DSD256 was specified. Furthermore I was told that the D/A converter section of the MP2000R (MkI and MkII) is identical to the DAC 8 DSD. The difference between the MkI and MkII models is the streaming client module. The new streaming client supports streaming services and is Roon ready.
  9. I had a look at the T+A products in Munich last week. The SACD player PDP3000HV and the network player MP2000R share the same DAC architecture (i.e. 4 x BURR BROWN PCM1795 for PCM, discrete DAC for DSD, jitter attenuation / re-clocking with local VCXOs, discrete analog I/V and filter stages). Both above products have no volume control.
  10. Amanero firmware 1096c is currently used for the DAC8DSD at present due to a phase shift problem between L/R channels which randomly occurs with newer versions. AFAIK work on this issue is in progress - so there is hope to see DSD512 Linux support in the near future....
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