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-   -   What I will need to assemble working Buffalo kit (http://www.diyaudio.com/forums/twisted-pear/190427-what-i-will-need-assemble-working-buffalo-kit.html)

tubeme 7th June 2011 06:51 PM

What I will need to assemble working Buffalo kit
 
Buffalo III is coming and USB to I2S & S/PDIF module is available now. I will try to catch all modules I need. But am newbie and want to be sure what to buy so I'll better ask here.

Inputs I want: USB, SPDIF, TOSLINK.
I will output to headphones tube amplifier or regular tube amplifier with speakers.

I think it will be sufficient for me to have one Buffalo module for both channels.

So I suppose I will need the following:
  • Buffalo-II or III DAC Module
  • Placid Power Supply Kit for Buffalo
  • IVY-III Kit
  • Placid HD Bipolar Power Supply Kit for IVY-III
  • USB Receiver Module
  • TOSLINK Optical Input Module Kit
  • S/PDIF (WM8804) Receiver Module.
Do I need S/PDIF (WM8804) Receiver for TOSLINK right?

And I need two power transformers, right? One for Placid and one for Placid HD Bipolar. One is 15V+15V (30VA) Power Transformer and one 9V+9V (15VA) Power Transformer.

Please correct me if I am wrong somewhere.

And regarding orders from Twisted Pear. Maybe you know, is it possible to order with late shipping. I mean I want all items at once to save some money on shipping and it looks almost impossible to order all at once. Can I ask owners of TP to collect items and send them later together?

Thank you.

zkdaz 8th June 2011 02:45 PM

I have just been through a similar process of working out how all their parts fit together and which ones to order.

The only things I can think of that you may want to consider are a way to switch between inputs, volume control and power regulation for the input modules.

The BII can take one s/pdif input directly so the reciever shouldn't be needed, however the TOSLINK module outputs s/pdif so you would need a way to switch between them.

I think the BIII has more input options and volume control built in but we are waiting for the manual for more details, especially concerning switching between inputs.

I would want to run the power for the input modules from a separate supply to the placid used for the Buffalo, so another Placid or LCDPS. If you use the 9v-0-9v transformer you will have a spare 9v ac already.

I am planning on using a 6v transformer for the placid feeding my Buffalo rather than the 9v-0-9v unless someone gives me a good reason not to.

There is a new and improved USB module in the pipeline, look for the thread called "TPA -USB Transport" for all the details. The current one only supports 16 bit audio, I don't know if this is an issue for you. In my case I would like 24 bit to allow headroom for equalization on the PC from 16 bit files.

There has also been talk of an upgraded input selecting module, but references to that are scattered between many threads.

Finally if your preference is for tube sound you may prefer the sound of the Legato I-V stage to the IVY.

From comments I have read here and on their own forums Brian is good at holding orders until all is ready. I have currently ordered a mixture of preorder and available items and all is being shipped together.

Now we are all just waiting for the Buffalo III to come available, hopefully with some trident regulators as an extra special treat.

Good luck in the scramble when the do eventually release them.

Dan

LeonvB 8th June 2011 05:47 PM

First of all, the BII will likely not become available again. Brian stated he kept just a few boards apart for people who want to expand their existing setup to a dual mono setup.
The BOM for the BIII will be a bit different for your setup than that of the BII. First, the BIII has a built-in capability to switch between 4 SPDIF inputs. These need to be TTL level, or you'll need a new module that converts the SPDIF. Also, the BIII features a built-in Volumite module for which you just need a pot to use it. And with the BIII it's even more attractive to use the Trident regulators. So I'd suggest the following list:

- BIII
- IVY3
- LCDPS (1 half for BIII/Trident combo, 1 half for rest of modules)
- Placid HD BP
- Trident set
- Toslink module
- New Mux module for BIII
- New or old USB module depending on your requirements.
- 15+15V transformer
- 9+9V transformer

tubeme 17th June 2011 06:39 AM

Thank you very much Dan and LeonvB for your response!

Dan,
Why do you think Legato I-V is better for tube amps? Did you tried both Legato I-V and IVY with tube amp?

LeonvB,
Why LCDPS instead of Placid HD BP for BIII/Trident? It's cheaper and suits first stage (DAC)?

Thanks!

MrMajestic 17th June 2011 11:58 AM

Quote:

Originally Posted by tubeme (Post 2608934)
Why LCDPS instead of Placid HD BP for BIII/Trident? It's cheaper and suits first stage (DAC)?

Thanks!

There is no point running the shunting power supplies (in the Buffalo) from a shunting power supply (Placid). Also, you cant use the Placid HD BP for the Buffalo, but I think you meant the regular Placid. Also, if you use the LCDPS you can use one half to run the Buffalo and the other to run other modules from.

zkdaz 17th June 2011 04:17 PM

Quote:

Originally Posted by tubeme (Post 2608934)
Dan,
Why do you think Legato I-V is better for tube amps? Did you tried both Legato I-V and IVY with tube amp?

My comment is not based on side by side listening yet, I have only recently ordered the first of my components. It was based on a thread about to the differences between IVY and Legato, and trying to decide which to use. My job is quiet at the moment and I have a lot of time to trawl forums.

The consensus I filtered from all the comments was that both were superb but the Legato was generally described as warmer and more musical whereas the IVY tended to be described as accurate and precise, these are the same sorts of subjective vocabulary that we often attribute to valve and solid state circuits respectively.

Depending on your tastes you may either want to counter or compliment the characteristics of your amp with your selection of the linestage. For example, a friend is using a Benchmark DAC1 with built in linestage, which we both consider to be very analytical when listened to it on good headphones, but with vintage Quad II valve amps the characteristics of each combine to a neutral sound that is very easy on the ears.

For my part I have ordered the IVY, mostly because my open baffle speaker plans needs a lot of reinforcement of the bass and the IVY is a more efficient circuit so will run cooler with the extra load. I am designing backwards from the room and the speakers since they are the least accurate part of the chain. For reference, I like the sound of tube amps with electrostatics but generally prefer solid state circuits for dynamic drivers.

I still plan on buying the Legato and comparing the two for myself, but that's something to play with once I have a working system. It's not exactly an expensive item, I just wish there was a simple way to swap back and forwards without having to de-solder and adjust the power supply each time.

Dan

LeonvB 17th June 2011 06:45 PM

Quote:

There is no point running the shunting power supplies (in the Buffalo) from a shunting power supply (Placid). Also, you cant use the Placid HD BP for the Buffalo, but I think you meant the regular Placid. Also, if you use the LCDPS you can use one half to run the Buffalo and the other to run other modules from.
Exactly, the noise level from the Tridents will determine the amount of noise injected into the DAC. Using a low noise shunt PSU to them adds 0 value. But the LCDPS has 2 halves, which allows you to separate the DAC and the rest of the modules. Since the DAC with Tridents uses almost all of the capacity of 1 circuit using 2 circuits DOES offer some advantages.

BrianDonegan 18th June 2011 12:53 PM

Quote:

Buffalo-II or III DAC Module
The Buffalo-II will no longer be available, so that part of the question is easy :)

zkdaz 19th June 2011 05:04 PM

Quote:

Originally Posted by MrMajestic (Post 2609143)
There is no point running the shunting power supplies (in the Buffalo) from a shunting power supply (Placid).

The only reason I chose to power my Buffalo from a Placid is so I can get it up and running while I wait for the mythical Tridents to become available again. I might have chosen differently if everything was in stock.

BrianDonegan 19th June 2011 05:11 PM

Quote:

Originally Posted by zkdaz (Post 2611680)
The only reason I chose to power my Buffalo from a Placid is so I can get it up and running while I wait for the mythical Tridents to become available again. I might have chosen differently if everything was in stock.

Hey, if you feel like doing my day job for me and playing with my kids for a day, I'll get some built for you.


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