Salas hotrodded blue DCB1 build - Page 80 - diyAudio
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Old 12th March 2011, 01:49 PM   #791
Salas is offline Salas  Greece
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Quote:
Originally Posted by 10y View Post
Hi Salas!

thanks for your reply.

Yes I will substitute the sinks with more efficient models.

My audio chain tourns around altec 414 onken bass with medium 288 16g/ 311-60 altec horn system and gauss 1505 tweeter.

Pre diy: ugs all inclusive, l'euridice (tube pre with ec8010 and output tx).

Ampli diy : aleph 30 ( hotroddedd at 1,10 A per mosfet)
up
il triodino (single ended 6c5 fivre with electro harmonix 300b)

Dac : assembled around four 1704 burr brown and ecc 188 tube I/V
conversion

I'm very happy with it.

Ciao,

Anto
Interesting system. And what are you planning to do with DCB1? Use it alternatively to a preamp, or just buffer a DAC? You should watch grounds with so sensitive loudspeakers for no buzz. Let us know impressions. Regards.
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Old 12th March 2011, 01:53 PM   #792
AndrewT is offline AndrewT  Scotland
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To buffer the Lightspeed in the earlier post.
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regards Andrew T.
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Old 12th March 2011, 02:15 PM   #793
Salas is offline Salas  Greece
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The future LSPD yes, but still as a general pre or for the DAC only?
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Old 12th March 2011, 02:44 PM   #794
10y is offline 10y  Italy
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Hi,

I have built pass f5, penasa my ref and my evo too...

For now I will use dcb1 with lightspeed as general pre swapping it with the others pre.

Very interesting idea buffer dac with it.

Could be put into a greater case with one of penasa's ampli in order to obtain an integrated amplifier for a second smaller hifi chain.

Will post some listening impression soon....

Ciao,

Anto
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Old 12th March 2011, 06:27 PM   #795
Salas is offline Salas  Greece
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I see many pairings with DCB1 & F5 but I wonder if the total gain is enough in all those cases. Takes about 3V RMS capable source. Its much easier with horn speakers on the other hand.
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Old 13th March 2011, 08:53 AM   #796
10y is offline 10y  Italy
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Quote:
Originally Posted by Salas View Post
I see many pairings with DCB1 & F5 but I wonder if the total gain is enough in all those cases. Takes about 3V RMS capable source. Its much easier with horn speakers on the other hand.
I will tell about this combination;
anyway my dac can output that signal level

Anto
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Old 15th March 2011, 06:10 PM   #797
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Default Vishay 234R

I have on hand few Vishay 234R. Can I use them instead of 220R?
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Old 15th March 2011, 06:37 PM   #798
Atilla is offline Atilla  Norway
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Yeah, that's a fairly small difference, it shouldn't be a problem.
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Old 16th March 2011, 12:19 AM   #799
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Hello Salas, Iím trying to find out as much as I can regarding balancing a blue DCB1 build (using 2 boards). I have not come across any completed builds that have are balanced as yet, information is sparse, I have spend considerable time searching in vain. Iíve posted this layout in the Mesmerize build thread, AndrewT responded kindly regarding the importance of matched impedances for the input and output, thanks Andrew.

Click the image to open in full size.

Is there anything else that would be of importance with such an undertaking would any component changes benefit from balanced operation? Is this layout workable?

Thanks for a wonderful project.
John
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Old 16th March 2011, 01:11 AM   #800
Salas is offline Salas  Greece
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Hello. Since I don't have balanced DIY gear, I never attempted a balanced DCB1. Thus I can't give you any expert advice. I can only comment that whatever applies for balanced wiring in a regular B1 applies to DCB1 equally. There were a couple of connection schematics proposed in B1 & DCB1 threads, not some finished application shown yet. Yours looks logical for connectivity too. Why the Zobel? To track Zo better supersonically between phases?
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