I cannot remember how, but I have solved the problem, and have not experienced it in a long, long time. I might have changed the grounding scheme or something, but I honestly cannot remember. Maybe it was the amanero firmware change...
OK, thanks. I usually use a line conditioner but had the system on the bench for repairs/upgrades and the frequency of volume jumps was much higher. I'm guessing that the (not cheap) power switches I use are somehow 'noisy' so soon they will be left on and logic-controlled outlets will manage power. I also added a software 'band-aid' by making full volume illegal. If it ever happens its reversed in 1/3 of a second.
Thanks for that.Hex files are always there in Buffalo-III-SE-Pro-On-Board-Firmware/Release
I installed a fresh copy of the master firmware and the trusync firmware.
If I play the music @ 44.1k PCM the sound gets a bit worse when disabling OSF, but high bitrate music has no audible effect and none of the filter settings have any audible effect when changing between them at any bitrate. Is this normal?
Also the difference between normal operation and trusync seemingly not audible.
Also using the trusync firmware the SW1 that is supposed to switch the dac setting between trusync and normal operation actually just makes the dac do nothing if I switch it to "normal" setting. This makes me think "normal" is actually spdif mode and I'm not actually in trusync at all when SW1 is set to trusync because this is the same behavior as the master firmware.
Any advice?
Because simple on/off of DIP switch does not take effect until the DAC is reset by power-off and on again. Also, "normal operation" means the DAC should be set to async mode with the on-board XO active. Rgds,Also the difference between normal operation and trusync seemingly not audible.
Hi Nic
It's the same, if I remember correctly. I'm using it in a Buffalo III Pro SE with Sen using the the fets you kindly matched for me. I was surprised by how much better it sounded that my Buffalo II with a 9018
Best
Paul N
Hi Paul,
Good to hear from you and thanks for the information!!!
Cheers,
Nic
I would like confirmation about my integration.
I have the 9038, using Chronus/Hermes/Amanero stack.
Chronus is connected to 9038 with D1/D2/DCK via u.fl.
All settings are "default", including Amanero firmware
Music plays, so thats a good sign.
Various questions:
1) How important is Chronus reclocking, given that the 9038 has DPLL ?
2) Which is the "best" Amanero firmware to use?
3) DSD files don't work for me. They either play really fast or there is silence. I use the DSD over WASAPI plugin in foobar. I am able to play DSD when connecting my Chord mojo with the same player
4) Would this integration yield the lowest measurable jitter?
5) How does using the ext_mck (currently not used) change things?
I have the 9038, using Chronus/Hermes/Amanero stack.
Chronus is connected to 9038 with D1/D2/DCK via u.fl.
All settings are "default", including Amanero firmware
Music plays, so thats a good sign.
Various questions:
1) How important is Chronus reclocking, given that the 9038 has DPLL ?
2) Which is the "best" Amanero firmware to use?
3) DSD files don't work for me. They either play really fast or there is silence. I use the DSD over WASAPI plugin in foobar. I am able to play DSD when connecting my Chord mojo with the same player
4) Would this integration yield the lowest measurable jitter?
5) How does using the ext_mck (currently not used) change things?
Your question had been well answered in the introduction of Cronus by Russ White here.-snip-
Various questions:
1) How important is Chronus reclocking, given that the 9038 has DPLL ?
The "best" depends on the OS used for playing music. In case of Windows, 1099c firmware will be most stable, capable of playing music up to DSD512. If DSD512 on linux is pursued, there is no stable firmware for now. DSD512 on linux appears to require a big endian (BE) format and the 2005be firmware, the latest, is still buggy, though almost close to being completed.2) Which is the "best" Amanero firmware to use?
WASAPI does not work for DSD in Amanero. You need an ASIO driver for Windows provided by the Amanero site.3) DSD files don't work for me. They either play really fast or there is silence. I use the DSD over WASAPI plugin in foobar. I am able to play DSD when connecting my Chord mojo with the same player
The answer is already there in your question 1).4) Would this integration yield the lowest measurable jitter?
For ordinary use, you can forget it. It is used for an SMA receptacle receiving the clock signal elsewhere (instead of on-board clocks on the Cronus) via an SMA cable.5) How does using the ext_mck (currently not used) change things?
Regards,
FYI: We have added some Combination deals to the web site for the Buffalo 9038Pro.
Buffalo-IIIsePro38 Complete Kit Combo for $699
[1] Buffalo-IIIsePro38 2-Channel DAC w/Full Series Regulator Set
[1] Centaur 2A Power Supply Complete Kit
[1] Mercury Balanced I/V Stage v1.1 Kit
[1] Placid HD BP Power Supply Kit
Buffalo-IIIsePro38 Complete Kit Combo + Power Transformers for $749
[1] Buffalo-IIIsePro38 Complete Kit Combo (see above)
[1] 9V+9V (30VA) Power Transformer
[1] 15V+15V (50VA) Power Transformer
Buffalo-IIIsePro38 Complete Kit Combo for $699
[1] Buffalo-IIIsePro38 2-Channel DAC w/Full Series Regulator Set
[1] Centaur 2A Power Supply Complete Kit
[1] Mercury Balanced I/V Stage v1.1 Kit
[1] Placid HD BP Power Supply Kit
Buffalo-IIIsePro38 Complete Kit Combo + Power Transformers for $749
[1] Buffalo-IIIsePro38 Complete Kit Combo (see above)
[1] 9V+9V (30VA) Power Transformer
[1] 15V+15V (50VA) Power Transformer
Hi Guys , I've built a B3-SE pro and the unit sounds great. Currently using the merciry and Sypativo amps. However I have found that when OSF is enabled the DAC is rolling off the treble from about 10khz quite badly and is very audible. I prefer the sound with the oversampling on but it seems the system sparkles quite softly with it on. Any ideas what might cause this? I'm using LVPS as power for the DAC. I've tried all combinations of filter settings but the treble still rolls off badly. I'm using UMIC measuring mic and software.
What do you use for source? The XMOS chips support SPDIF input and can feed the Buffalo MCLK for synchronous operation.
Thanks for the tip. I was thinking of direct toslink to B3Pro, but perhaps another option is available.
...
So one cool option is that the ES9028/38 allows you to assign GPIOs to SPDIF input. The default firmware could be altered to allow for that - then you could have 2 SPDIF sources (one consumer level coax, and one TTL/CMOS) without needing any external switching. If anyone is interested I can create a branch that does that.
...
Cheers!
Russ
Hi,
I would like this firmware branch to use two spdif inputs.
Where to find it?
BR
Branko
Is anybody else getting frequency response changes due to OSF enabled at all?
Never heard of this... The OSF is enabled by default (register 37) and the default filter type is 'fast roll-off, minimum phase' (register 7). How are you controlling the DAC?
Hello
I have seen that the B3se Combo Kit now includes the PSU Centaur and no longer Placid-HD.
This is due to higher current needed by the ES9038 board, true ?
Without using 384fs a Pacid-HD would be sufficient ?
Centaur is not that low-noise - is there any noticeable effect in sound quality ?
BR
Andreas
I have seen that the B3se Combo Kit now includes the PSU Centaur and no longer Placid-HD.
This is due to higher current needed by the ES9038 board, true ?
Without using 384fs a Pacid-HD would be sufficient ?
Centaur is not that low-noise - is there any noticeable effect in sound quality ?
BR
Andreas
Hello
I have seen that the B3se Combo Kit now includes the PSU Centaur and no longer Placid-HD.
This is due to higher current needed by the ES9038 board, true ?
Without using 384fs a Pacid-HD would be sufficient ?
Centaur is not that low-noise - is there any noticeable effect in sound quality ?
BR
Andreas
Yes, the Centaur is for providing higher current, and ease of setup.
All critical sections of the Buffalo are powered by Tridents (or the reg of your choice), which dominate noise performance. They are very low noise, making the pre-regulator noise less of an issue.
While the M350 is not considered "low noise" by today's standards, it is also not "noisy" by any means.
Has anyone here tried to run multiple Buffalo dacs over spdif with an aes/ebu soundcard
as a multichannel solution ? If so what's the experience regarding noise free and stable lock ?
Is spdif generally more reliable then i2s (usb) in that regard ? I did this but with the "Najda"
dsp for some years and it was very reliable with these dacs (3xBuffaloIIIse).
Lynx Studio AES-16e PCI Express – Thomann Sverige
as a multichannel solution ? If so what's the experience regarding noise free and stable lock ?
Is spdif generally more reliable then i2s (usb) in that regard ? I did this but with the "Najda"
dsp for some years and it was very reliable with these dacs (3xBuffaloIIIse).
Lynx Studio AES-16e PCI Express – Thomann Sverige
For me, SPDIF seems very robust as long as wire runs are tidy and short.
That's an interesting sound card. It *appears* from the specifications that it has no built-in clock switching capability. As an interface from a digital audio workstation, of course, there may be less need to restore a signal using the original clock frequency. However, as an engine for music REproduction (vs. original production), I would expect better sound from any DAC interface that restores the original clock frequency. Six channels? With patience, there may be a solution in the future. I'm pulling 6 channels from a BBB/Hermes/Cronus. the BBB does not give powerful processing capability to the music rendering programs, but the audio is great and the hardware is significantly less costly than the Lynx PCI express interface you mentioned.
That's an interesting sound card. It *appears* from the specifications that it has no built-in clock switching capability. As an interface from a digital audio workstation, of course, there may be less need to restore a signal using the original clock frequency. However, as an engine for music REproduction (vs. original production), I would expect better sound from any DAC interface that restores the original clock frequency. Six channels? With patience, there may be a solution in the future. I'm pulling 6 channels from a BBB/Hermes/Cronus. the BBB does not give powerful processing capability to the music rendering programs, but the audio is great and the hardware is significantly less costly than the Lynx PCI express interface you mentioned.
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