Nielsio said:
Same here; have not received my package yet.
I do not understand the "attempted delivery abroad may 21" line(unless us postal service is able to look in the future). The website mentioned this line already on the may the 20th.
Nielsio: have you received your package in the meantime?
Scanspeakman
Herei s a pic of my board all mounted down, all I have left do to is panel work from front panel express, case is from Modushop.biz
An externally hosted image should be here but it was not working when we last tested it.
Hmm... so it sounds like maybe I should just slap a volumite on the Buffalo and setup my B22 without a volume control? I guess I have an extra Joshua Tree attenuator then.
Re: The Evolving Buffalo
I'm in the process of adding a board to my active ground B22 to make it balanced. Thus, why I'm building the Buffalo. It's currently being fed by my Gamma1. I'm certainly curious about how the Buffalo will sound directly as well. I can't believe that it will sound as good as the B22, but I'll let you know what happens. Might be a while depending on how successful I am at the pre-orders.
I'm in the process of adding a board to my active ground B22 to make it balanced. Thus, why I'm building the Buffalo. It's currently being fed by my Gamma1. I'm certainly curious about how the Buffalo will sound directly as well. I can't believe that it will sound as good as the B22, but I'll let you know what happens. Might be a while depending on how successful I am at the pre-orders.
slartibartfasst said:
Re: The Evolving Buffalo
I have seen you are interested in batteries, probably you are interested in my report.
Go to pg.67 nr. 1668 of the Sabre Buffalo DAC thread. There are also posts in the Art of Sound Forum.
Now I have removed all the regulators, even those on the receiver. For the 1.2 Volt supply I had to switch to a NiMh. I have chosen a Sanyo Eneloop, because normal NiMh have a high self discharging rate and the Eneloops have a nice flat curve.
I have asked ESS about the safe limit of the 1.2V supplies, no answer yet, until now I have charged it to not more than 1.32 Volt.
I was certain that there would be no difference between the 1.2V reg and the battery. Unfortunately I was wrong. Now with the new dac there will be 9 batteries.
At the same time the biggest surprise came with the naked Texas TX2575 resistors, which had replaced the Vishay bulk metal I/V resistors (also made by Texas Components). Somebody in the net said they were 10 times better than the older ones. Blabla?, NO! He is right! Now I think about using these for volume control (instead of TVC or LDR) or in amplifiers.
regards Andre
slartibartfasst said:
I have seen you are interested in batteries, probably you are interested in my report.
Go to pg.67 nr. 1668 of the Sabre Buffalo DAC thread. There are also posts in the Art of Sound Forum.
Now I have removed all the regulators, even those on the receiver. For the 1.2 Volt supply I had to switch to a NiMh. I have chosen a Sanyo Eneloop, because normal NiMh have a high self discharging rate and the Eneloops have a nice flat curve.
I have asked ESS about the safe limit of the 1.2V supplies, no answer yet, until now I have charged it to not more than 1.32 Volt.
I was certain that there would be no difference between the 1.2V reg and the battery. Unfortunately I was wrong. Now with the new dac there will be 9 batteries.
At the same time the biggest surprise came with the naked Texas TX2575 resistors, which had replaced the Vishay bulk metal I/V resistors (also made by Texas Components). Somebody in the net said they were 10 times better than the older ones. Blabla?, NO! He is right! Now I think about using these for volume control (instead of TVC or LDR) or in amplifiers.
regards Andre
Well, I just cut the traces and it was a noticable difference, I can say this because one speaker was working as advertised and the other was much softer...
Rolls,
Did you ever try a Silonex LDR as I/V resistor - I'm wondering how it might sound compared to the TX2575 Rs - and also wondered if it could be used in this I/V position as a volume (gain) control - I think I even suggested it on AOS but heard no comments - maybe it wouldn't be stable enough or accurate enough to give good tracking between channels - maybe it's just harebrained?
Did you ever try a Silonex LDR as I/V resistor - I'm wondering how it might sound compared to the TX2575 Rs - and also wondered if it could be used in this I/V position as a volume (gain) control - I think I even suggested it on AOS but heard no comments - maybe it wouldn't be stable enough or accurate enough to give good tracking between channels - maybe it's just harebrained?
jkeny said:
I haven't tried them yet, even if i have 50 of them in stock and even if there is EVA from DIY paradise waiting to be played. I have always been busy with my Dacs.
Since my experience with the 2575, what they do to my CD's is so unbelievable, that I wonder if this could be topped, but the whole is a match. There are the 7 or 9 batteries directly supplying the chips, there are the transformers and I/V resistors.
I have tried a pot as I/V resistor, It did not work very well. At low volume the reflected impedance would be lower than the primary dc resistance, a nonsense in transformer engineering i was told years ago by a local winder.
regards Andre
Ah, so DIYParadise have done a uC controlled preamp using unmatched LDRs - wow you're a mine of information - I hadn't known that they had completed this!
Hmm, low volume/gain a problem - how low could it go without problem - depends on the transformer used, I guess?
Hmm, low volume/gain a problem - how low could it go without problem - depends on the transformer used, I guess?
Hey guys, lets try to stay on topic. 🙂
I don't mind the LDR discourse etc..., but you might want to move it to your tweaking thread. Especially since it has nothing really to do with the Buffalo32S in specific.
Cheers!
Russ
I don't mind the LDR discourse etc..., but you might want to move it to your tweaking thread. Especially since it has nothing really to do with the Buffalo32S in specific.
Cheers!
Russ
Ordered a 32S
After a lot of discussion with my wife
finally got her so far that she agreed. It took a lot to convince her that the guy's at Twisted Pear had something better than my (vintage) Buffalo 1.0
Russ and Brian please help me save my marriage and don't come in a few months with the new Buffalo XXXXXX please
😀
I am so curious about the sound because my 1.0 is so good I cannot imagine an even better sound coming out off the 32S.
Regards Rene.
After a lot of discussion with my wife
finally got her so far that she agreed. It took a lot to convince her that the guy's at Twisted Pear had something better than my (vintage) Buffalo 1.0 Russ and Brian please help me save my marriage and don't come in a few months with the new Buffalo XXXXXX please
😀
I am so curious about the sound because my 1.0 is so good I cannot imagine an even better sound coming out off the 32S.
Regards Rene.
Re: Re: Re: Re: Roaming Buffalo now at home
Interesting perspective. Do you have any sense of how much of the -117dnTHD+N you lose if you run the signal through a balanced JT2 with the volume at about half open.
Cheers
Thomas
Russ White said:
No, I don't have an LSA to measure, but I know do know how LDRs work. And I can read the distortion charts 🙂. LDRs add a pretty hefty amount of distortion especially once you get over 1VRMS. I for one would not be willing to take a -50db THD+N distortion figure over a -117db THD+N.Even if were all 2nd order...
The DNR of the Buf32S at -60dbfs is 127db. If you run that clean signal through a set of interconnects and then some more passives (even the best quality) it will be less. 🙂 Add to that the output impedance will be higher. So the best approach in my book, is to put nothing at all between the source and the amp. 🙂 Then you will have the purest possibly signal and good line driving capability.
Russ
Interesting perspective. Do you have any sense of how much of the -117dnTHD+N you lose if you run the signal through a balanced JT2 with the volume at about half open.
Cheers
Thomas
Re: Re: Re: Re: Re: Roaming Buffalo now at home
Hi Thomas,
Honestly I do not, but what I can say is that I purposefully kept the series resistance low to reduce noise/distortion on the JT2 especially from 25% volume on. But I don't have gear to accurately measure it.
The nice thing is, as volume(voltage) goes up, distortion actually goes down with the JT2. This is the opposite of the LDR.
For a DAC like the Buffalo32S I personally would not use either the JT2 or the LDR. I would only use the Volumite.
Now for some DACs the JT2 is a perfect fit. One example is the COD.
Cheers!
Russ
thomaspf said:
Hi Thomas,
Honestly I do not, but what I can say is that I purposefully kept the series resistance low to reduce noise/distortion on the JT2 especially from 25% volume on. But I don't have gear to accurately measure it.
The nice thing is, as volume(voltage) goes up, distortion actually goes down with the JT2. This is the opposite of the LDR.
For a DAC like the Buffalo32S I personally would not use either the JT2 or the LDR. I would only use the Volumite.
Now for some DACs the JT2 is a perfect fit. One example is the COD.
Cheers!
Russ
Russ,
If my understanding is correct, the input quality for Buffalo should be I2S > AES > SPDIF, am I right?
I am wondering if there is a way that I can connect AES(XLR) input direct to new Buffalo32 without MUX-CS8416? I checked all documents which I can found, but didn't get a clear answer.
Thanks in advance.
Roland
If my understanding is correct, the input quality for Buffalo should be I2S > AES > SPDIF, am I right?
I am wondering if there is a way that I can connect AES(XLR) input direct to new Buffalo32 without MUX-CS8416? I checked all documents which I can found, but didn't get a clear answer.
Thanks in advance.
Roland
I was thinking buying the buffalo but it seems very expensive for what it is.500 usd for a small board with parts is a lot even if the chip is an "expensive" 29 usd .
With all respect to Russ and Brian ,who seem very nice, I remember twistedpearaudio were a bit more diy friendly in terms of price when they started out.
I imagine some small chinese company selling this in a couple of months for 100 usd.
With all respect to Russ and Brian ,who seem very nice, I remember twistedpearaudio were a bit more diy friendly in terms of price when they started out.
I imagine some small chinese company selling this in a couple of months for 100 usd.
protos said:
Hi Protos thanks for the encouragement. 🙂
With all respect, your estimation of the costs involved is not even close and very simplistic. This topic has been covered before, so I won't do it again.
If its not a good value to you, then by all means look elsewhere.
Cheers!
Russ
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