leo said:
Your certainly welcome. 🙂
Oooooh, well I can honestly say if you have not heard it drive cans directly balanced yet, the best is yet to come for you. 🙂
It has seriously spoiled me.
Enjoy!! 😀
Cheers!
Russ
So, Russ, I suppose the new Placid has little in common with the previous version.. 😉
Please let us know how the whole project goes.
A separate thread might be useful since it's a PSU after all and I'm sure people will use it in various projects other than the Buffalo.
But, please, do let us know how it sounds on the 32S compared to the "stock" PSUs. Are there any gains when using a "cleaner" supply, after all? 🙂
The fact that you proceed with this project is an answer in itself for me, but feel free to elaborate! 😀
Please let us know how the whole project goes.
A separate thread might be useful since it's a PSU after all and I'm sure people will use it in various projects other than the Buffalo.
But, please, do let us know how it sounds on the 32S compared to the "stock" PSUs. Are there any gains when using a "cleaner" supply, after all? 🙂
The fact that you proceed with this project is an answer in itself for me, but feel free to elaborate! 😀
Russ White said:
Oooooh, I completely forgot about Placid. I was promised a Placid last July due to an order SNAFU, but I would be more than happy to guinea pig the new version for you if it goes beyond a prototype 🙂
But my shipping address has changed since that last order. Brian would need to contact me......
Somehow i seem to like the sound more when the dip switch 3 is in low position (slow roll off). Even tho the measurements a few pages back suggested the fast roll off would give straighter 0-20Khz performance, I find the sound to be more lively with the slow roll off.
Even if A/B comparing the treble performance with Benchmark DAC-1 the slow roff off seems to give better result in my case. I havent noticed any high pitched aliasign or defects of that sort either. I am feeding B32s with 44.1khz/16bit.
Any ideas why this could be? Am i turning into a bat?
Even if A/B comparing the treble performance with Benchmark DAC-1 the slow roff off seems to give better result in my case. I havent noticed any high pitched aliasign or defects of that sort either. I am feeding B32s with 44.1khz/16bit.
Any ideas why this could be? Am i turning into a bat?
With slow rolloff you will have aliasing artefacts with treble rich, full frequency band program material; there is no way around it. For example, with a single sine wave, aliasing will add a slight tremolo effect. It is entirely possible that some may find this pleasing; this is why the rolloff is switchable to your taste. Don't feel like a bat; enjoy it the way you like it!
Kurt
Just purchased the dac sans power supplies. I'm going to use my own design for the power supplies as well as Paul Hynes' shunt regulators. Thanks Brian and Russ. Will let you know how it sounds. A colleague of mine is pretty enthused with your standard Buffalo dac (i.e. not the 32 bit version) stating that it has beaten some of the finer PCM1794 dacs with asynchronous sample coversion and tube differential outputs!
So I thought I might as well purchase one to see for myself!
Anand.
So I thought I might as well purchase one to see for myself!
Anand.
Oh yeh! My buffalo32s arrived last friday after being stuck at someone's desk for about two weeks (who was probably wondering "what the f%^& is this and how much duties should be charged"). Yesterday evening my brother and I build the PSU's and dac. After about 4 hours of work it worked the first time we powered in on.
First impression is along the lines of earlier impressions mentioned above. More detail, less "sharp" treble and very neutral. Very pleasing. It was 01.00 when we finished it so we only got a change to listen very briefly and at a low volume. But it definitely sounds better then the CS4398 based DAC in my Marantz CD6002. That was pretty clear after about 15 minutes of listening.
It's not in a case yet but that will come in the following weeks.
Thanks Russ and Brain! Great product. Very easy to build and very good results.
Scanspeakman
First impression is along the lines of earlier impressions mentioned above. More detail, less "sharp" treble and very neutral. Very pleasing. It was 01.00 when we finished it so we only got a change to listen very briefly and at a low volume. But it definitely sounds better then the CS4398 based DAC in my Marantz CD6002. That was pretty clear after about 15 minutes of listening.
It's not in a case yet but that will come in the following weeks.
Thanks Russ and Brain! Great product. Very easy to build and very good results.
Scanspeakman
Attachments
BrianDonegan said:
We did that and also cut the traces near the outputs. For this quick-and-dirty setup we left out the "thumpbuster" relays. The "thump" you get without them is minimal by the way. I am already wondering how this DAC will sound after a week of burning-in.
Scanspeakman
Brian, Russ, What is the best way to connect I2S wires from the juli@ soundcard to the B32S (to prevent ringing) Better use serie resistors (20-30ohm) or straight connection? plz advise..
I'll be running the following setup:
[PC] Emu 0404 AES/EBU -> Behringer DEQ2496 AES/EBU -> Buffalo32 -> JLTI Tube buffered chip-amp.
Do I need to cut the output traces?
[PC] Emu 0404 AES/EBU -> Behringer DEQ2496 AES/EBU -> Buffalo32 -> JLTI Tube buffered chip-amp.
Do I need to cut the output traces?
hybride said:
The digital lines already have a series resistance, but it is ok to add a bit more if you like.
I would just wire it directly and try that first.
Ok,
Two questions:
1. I ordered one of these:
http://www1.conrad.nl/scripts/wgate...=612529&no_brotkrumennavi=1&zhmmh_area_kz=8A#
I don't think it comes with a fuse. What fuse should I use?
2. Am I supposed to do something with the potentiometers on the power supplies?
Two questions:
1. I ordered one of these:
An externally hosted image should be here but it was not working when we last tested it.
http://www1.conrad.nl/scripts/wgate...=612529&no_brotkrumennavi=1&zhmmh_area_kz=8A#
I don't think it comes with a fuse. What fuse should I use?
2. Am I supposed to do something with the potentiometers on the power supplies?
Nielsio said:
1) 1A fuse should be fine.
2) Yes, you adjust the voltages to those recommended in the manual with them.
Please be careful. You may want some help.
Russ White said:
Hi Russ,
I have been thinking about the measurments on my Buffalo32 and I of supposedly would execute those at full volume with my JT2. Isn't the JT2 just a bit of cable extension at that point?
Would it not be better to also enable the resistors for this case? Will it have ayn detrimental effect on the signal if you enable the resistors on the board and then run the signal through a specific set of volume resistors on the JT2.
Cheers
Thomas
Russ White said:
1A is fine but 500mA works as well. I expect even 250mA to be fine. The DAC does not draw that much.
Nielsio: if you need advice how to adjust the power supplies send me an email lekkerlichaam<apestaart>hotmail<punt>com
Scanspeakman
I ordered two of those a few weeks ago. They came with a fuse. However, they had bare connections and wiring with the mains voltage exposed on the back, so be careful!
Kurt
Yesterday evening I listened to the Buffalo32s more closely. I found two "disadvantages".
1) CD's with crappy recordings already sounded like crap on my Marantz CD6002 but now they sound even worse....
2) The bass seems to be extended to even lower frequencies; now my couch is sometimes vibrating
More serious: this DAC is brutally detailled. It has been a while since the haires at the back of my neck raised with some live recordings. I can only confirm what other people said before; very good imaging and depth. With great recordings my audio system now really sings! And it is still improving.
Scanspeakman
1) CD's with crappy recordings already sounded like crap on my Marantz CD6002 but now they sound even worse....
2) The bass seems to be extended to even lower frequencies; now my couch is sometimes vibrating
More serious: this DAC is brutally detailled. It has been a while since the haires at the back of my neck raised with some live recordings. I can only confirm what other people said before; very good imaging and depth. With great recordings my audio system now really sings! And it is still improving.
Scanspeakman
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