The best modification "Mods" to EMU 1820M Output of Audio
The best Mod Modification for EMU 1820M Output of Audio.
After several JRC 2068 configuration tests, I discovered that the output of the DAC converter used in the EMU 1820M supports a good current level. So I first modified an EMU 1010 board and now an 1820M dock.
Currently, I have not implemented the balanced output for balanced signal on this EMU 1820M. Already in the EMU 1010 card was implemented and tested, and the operation is sensational.
IC JRC2068, Resistors and Capacitors of the Filters were removed and direct connection of the DAC Converter output to pin number 4 output where there was the respective JRC2068.
The approximate measured values of the output resistance of the Hot pin at the 4 pin output is 310 ohms, and the Cold pin up to the pin 7 output is 620 ohms.
After several JRC 2068 configuration tests, I discovered that the output of the DAC converter used in the EMU 1820M supports a good current level. So I first modified an EMU 1010 board and now an 1820M dock.
Currently, I have not implemented the balanced output for balanced signal on this EMU 1820M. Already in the EMU 1010 card was implemented and tested, and the operation is sensational.
IC JRC2068, Resistors and Capacitors of the Filters were removed and direct connection of the DAC Converter output to pin number 4 output where there was the respective JRC2068.
The approximate measured values of the output resistance of the Hot pin at the 4 pin output is 310 ohms, and the Cold pin up to the pin 7 output is 620 ohms.
Comentários
Postar um comentário