Legato 3.1 balanced out to my Aleph J (Common mode DC)

[habsrock93]

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

 

[Zen Mod]

either caps or xformer

 

[habsrock93]

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

 

[Zen Mod]

caps from legato then 100K bleeders to gnd then Aleph

4u7 caps are big enough

 

[oneoclock]

An externally hosted image should be here but it was not working when we last tested it.

Is that a possible solution?

 

[habsrock93]

Is this what you mean?

 

[Zen Mod]

yup

 

[habsrock93]

Ok, great. Thanks for the help.

Dave

 

[Zen Mod]

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