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Old 11th May 2013, 08:01 PM   #81
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tda1543 decoupling. no comment needed.

Last edited by PreSapian; 11th May 2013 at 08:05 PM.
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Old 13th May 2013, 07:39 AM   #82
qusp is offline qusp  Australia
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Quote:
Originally Posted by McGyver View Post
What??? Where do you see any russian capacitor in my DAC?
my apologies, I mistakenly mixed your post up with presapian's words

large film/foil/oil caps are effectively useless for HF decoupling in digital circuits, can even be detrimental, as they act as dipole antennas with long leads. I blame lampizator for this sort of practice.

Last edited by qusp; 13th May 2013 at 07:43 AM.
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Old 13th May 2013, 11:01 PM   #83
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a terrible practice to go with what sounds good to one's ears indeed.
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Old 20th May 2013, 08:07 AM   #84
qusp is offline qusp  Australia
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ears alone, absolutely ...

especially when doing things that are known to cause degradation, not improvement
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Old 20th May 2013, 09:42 PM   #85
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known, yes. heard, no. different strokes.

Last edited by PreSapian; 20th May 2013 at 09:58 PM.
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Old 11th June 2013, 02:19 AM   #86
wa2ise is offline wa2ise  United States
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PCM61P DAC chips feeding 820 ohm I/V resistors and then a 5963 cathode follower buffer stage.
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Old 17th June 2013, 09:06 PM   #87
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the last tower type 1543 i will make. huge rating caps make everything sound very ambient.
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Old 15th July 2013, 10:57 PM   #88
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Default 1541 A Dacasarus Rex Mark I

My first DAC build. The name is in reference to it's large size. Spared no space. Just put on the Maple front.
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Old 15th July 2013, 11:09 PM   #89
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Default Under the hood

The dac is based on the flawed Analogmetric design. Gone is the reclocker. Corrected spdif input. Using a CS8412 replacement board. Output is Sony 2's complement, MSB first to a NPC SM5814 digital filter. I2S to dac chip a TDA1541A S1 Crown. I/V is OPA627AU, 7th order GIC Bessel filter with AD8065 output buffer. Rocking sound. Will post second build the Mark II, soon. Dave
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Old 16th July 2013, 12:46 AM   #90
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Talking Later picture.... Under the hood

A more recent picture of the inside can be found here. DAC build TDA1541A/SAA7220P/B *will take som time*
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