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12th October 2011, 04:15 AM
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#1 |
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diyAudio Member
Join Date: Oct 2006
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Legato 3.1 balanced out to my Aleph J (Common mode DC)
Just wondering if the common mode DC on the outputs of the Legato(Dac output stage) would be a problem for my Aleph J. Voltage between signal ground and +/- out is 7vdc. Voltage between the +/- out is 0vdc. Would it be better just to add a coupling cap to the + in on the Aleph J? Thanks for any help. I'm really looking forward to hearing these togeather
 Dave |
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12th October 2011, 04:17 AM
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#2 |
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diyAudio Member
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
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either caps or xformer
__________________
my Papa is smarter than your Nelson ! tnx to  clean  thread ; Cook Book ; PSM LS Cook Book ; Baby Diyaudio FORUM ; BAF Forum & Gallery;I'm dumb
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12th October 2011, 04:20 AM
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#3 |
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diyAudio Member
Join Date: Oct 2006
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Wow that was a fast reply
Thanks. Caps it is. On the negitive input to the Aleph J the cap is after the 22.1k resistor. Do you think I should copy that on the + side?Dave |
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12th October 2011, 04:31 AM
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#4 |
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diyAudio Member
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
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caps from legato then 100K bleeders to gnd then Aleph
4u7 caps are big enough
__________________
my Papa is smarter than your Nelson ! tnx to clean thread ; Cook Book ; PSM LS Cook Book ; Baby Diyaudio FORUM ; BAF Forum & Gallery;I'm dumb
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13th October 2011, 02:46 AM
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#6 |
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diyAudio Member
Join Date: Oct 2006
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Is this what you mean?
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13th October 2011, 08:10 PM
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#7 |
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diyAudio Member
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
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yup
__________________
my Papa is smarter than your Nelson ! tnx to clean thread ; Cook Book ; PSM LS Cook Book ; Baby Diyaudio FORUM ; BAF Forum & Gallery;I'm dumb
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13th October 2011, 10:32 PM
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#8 |
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diyAudio Member
Join Date: Oct 2006
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Ok, great. Thanks for the help.
Dave |
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13th October 2011, 10:40 PM
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#9 |
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diyAudio Member
Join Date: Jan 2003
Location: ancient Batsch , behind Iron Curtain
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and , yes - short instead of C1
those CR cells are intended to be on Legato side ; that's why resistors are on outer side , to prevent any cap leakage/discharge during re/connecting procedure
__________________
my Papa is smarter than your Nelson ! tnx to clean thread ; Cook Book ; PSM LS Cook Book ; Baby Diyaudio FORUM ; BAF Forum & Gallery;I'm dumb
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