Quote:
Originally Posted by Cankin  I've read that, a true balanced DAC must have dual differential output from the chip itself, not just wired with XLR(or TRS) connectors.
Does 0404USB have true balanced output from the AK chip??
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The E-MU spec is not explicit in that regard under "Analog Line Outputs" at
E-MU Systems - Established 1971 - Emulator X2, Proteus X2, Digital Audio Systems, USB Audio/MIDI Interfaces, USB MIDI ControllersType: balanced, AC-coupled, 2-pole low-pass differential filter
D/A converter: AK4396
Level (auto detect):
- Professional: +12dBV max (balanced)
- Consumer: +6dBV max (unbalanced)
The AKM datasheet for the AK4396 does state......
".....The AK4396 has full differential SCF outputs, removing the need for AC coupling capacitors...."
......but the 0404 USB has AC coupling capacitors. The AK pinout diagram shows hot and cold pins for both analog output channels.
Guess we need someone who really knows what to look for to trace that out!
EDIT: Looking toward the back of that datasheet pdf, it appears that all of the suggested output circuitry terminates in an unbalanced signal.......something tells me that the actual topology ends up being an unbalanced signal from that point, sent to a balanced line driver....which I've been told is typical for a lot of pro gear. The inputs and outputs are designed to accept a balanced input and drive a balanced line, but that's primarily due to distances and to provide common mode rejection.
