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Digital Line Level DACs, Digital Crossovers, Equalizers, etc.

Effects of DACs defaults on our listening experience.
Effects of DACs defaults on our listening experience.
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Old 16th May 2019, 12:19 AM   #31
phase is offline phase  United States
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Well MY observation...
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Old 16th May 2019, 12:30 AM   #32
Tournesol is online now Tournesol  Belgium
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Quote:
Originally Posted by gabdx View Post
True, Tournesol, you would love the tda1541 is OS4x mode.
The problem is that i do need 24/96 and 32Bits internal for volume control.
I have some DACS in various gears: DAT and minidisk Sony, CD Marantz, creative EMU, Chromecast ...
i have a friend with a VERY good system (JBL M2), and often the same 'taste' than me, that seems satisfied with his 3098 OPPO.
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Old 16th May 2019, 12:48 AM   #33
gabdx is online now gabdx  Canada
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I already improved that design but you can have fun with it and post your improvements,

It is fed with a regulated supply of +-15V to 18V. You have mono boards or stereo boards, I used mine with mono boards with a DC servo to get rid of the output capacitor, however I prefer it without the DC servo, here is a schematic for multisim without the servo and power supply which is proprietary the trimpot in the schematic is to null the DC out of the tdat1541 for best performance!

I included picture too of my own revision, https://www.diyaudio.com/forums/atta...1&d=1557967885NOTE: the 2.7K input resistor is for a V-OUT dac, you bypass it to feed a I-OUT dac.

Not shown: regulated power supply with adjustable bias to nul the DC output, however it can be used with output capacitor after the 200ohm output resistor into a 10K to 100K input stage.

Please rename the TXT file to ms12 to open in multisim
Attached Images
File Type: jpg tda1541 IV.jpg (414.4 KB, 58 views)
Attached Files
File Type: txt discrete tda1541 stage - Copy.txt (184.1 KB, 2 views)
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Last edited by gabdx; 16th May 2019 at 12:51 AM.
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Old 16th May 2019, 01:36 AM   #34
gabdx is online now gabdx  Canada
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I do love that : DAC2.1 abbasaudio KIT,5v RMS,6sn7,TDA1541R1,CS8414,klangfilm parts | eBay

Direct to the Cir logic receive, no input transformer, not even the is2 attenuator, no re-clocking LOL, N.OS and look at that USB supply!!! wow. (I cannot find my old board with all dexa and reclockers I think it is gone in garbage)
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Old 16th May 2019, 01:51 AM   #35
abraxalito is offline abraxalito  United Kingdom
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Quote:
Originally Posted by AudioLapDance View Post
You can't cutnstrap a Topping and make it better, ... only worse.
How do you know? Have you tried? Or do you mean by 'worse' only 'worse numbers' not 'worse sound' ?
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Old 16th May 2019, 09:24 PM   #36
phase is offline phase  United States
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Usually blanket statements like that donít carry much weight without at least some additional clarification.
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