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Aria Line-Stage
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Humboldt View Drop Down
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Points: 251 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Humboldt Quote  Post ReplyReply Direct Link To This Post Posted: 13 Dec 2012 at 10:17am
Is this project still alive? Any idea when the line stage could be ready for production?
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Graham Slee View Drop Down
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Points: 16314 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Graham Slee Quote  Post ReplyReply Direct Link To This Post Posted: 13 Dec 2012 at 11:08am
Yes, well and truly still alive.

Much hinges on the quality of the balanced line outputs and here I have not been satisfied with any of the electronic balanced configurations in existence. The preamp must appear "invisible" to the music and nothing does it the way I want and that search has taken around 3 years so far.

I am currently looking into transformer balancing but that may not be the answer either.

There will be a way but unfortunately the depth of study this standard of performance requires is very time consuming.
That none should be able to park up and enjoy the view without a smartphone and the knowledge in how to use apps
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BackinBlack View Drop Down
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Points: 2139 		Post Options Post Options   Thanks (0) Thanks(0)   Quote BackinBlack Quote  Post ReplyReply Direct Link To This Post Posted: 13 Dec 2012 at 2:10pm
Very glad to hear that the Aria is progressing. Sorry to hear that balanced Audio Nirvana is proving elusive! Hopefully there will be a Eureka moment.
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less View Drop Down
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Points: 334 		Post Options Post Options   Thanks (0) Thanks(0)   Quote less Quote  Post ReplyReply Direct Link To This Post Posted: 17 Dec 2012 at 9:48am
Originally posted by Humboldt Humboldt wrote:

Is this project still alive? Any idea when the line stage could be ready for production?


All good things come to those who wait!

However, I do agree that the waiting is always the hardest part. Suffice in the knowledge that Graham is driven by the desire to "get it right" and not by the whims and demands of a marketing department whose product knowledge is almost zero.

When the Aria is available bags me the first one of the production line!

Les.    
I don't do mediocrity!

Les Sutherland
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Graham Slee View Drop Down
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Points: 16314 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Graham Slee Quote  Post ReplyReply Direct Link To This Post Posted: 18 Dec 2012 at 11:07pm
Now testing a transformer balanced output stage for the Aria (and big DAC)...

The test circuit is built on an old Era Gold V chassis but is nothing like its circuit

Transformer Balanced Output Test Circuit

The transformers look like Lundahl's but they're made by our local transformer manufacturer and are different in size and weight. Amazing measured performance!
That none should be able to park up and enjoy the view without a smartphone and the knowledge in how to use apps
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Fatmangolf View Drop Down
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Points: 9695 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Fatmangolf Quote  Post ReplyReply Direct Link To This Post Posted: 19 Dec 2012 at 8:10pm

Very nice and getting closer!
Jon

Open mind and ears whilst owning GSP Genera, Accession M, Accession MC, Elevator EXP, Solo ULDE, Proprius amps, Cusat50 cables, Lautus digital cable, Spatia cables and links, and a Majestic DAC.
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Graham Slee View Drop Down
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Points: 16314 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Graham Slee Quote  Post ReplyReply Direct Link To This Post Posted: 19 Dec 2012 at 9:11pm
Unfortunately one measurement doesn't tally: that at 600Ohm loading - it should be -6dB. OK, I know nobody will use it in such an old-fashioned way, but I find it important...
That none should be able to park up and enjoy the view without a smartphone and the knowledge in how to use apps
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