A while back Lynn Olson (if I may paraphrase) looked for spurs up out of the noise floor, and found 75 ohms or less to be ok.
My ears were/are happy with a 50 ohm "i/v" load feeding a Lundahl LL1674 amorphous core 1:8. Lowish output voltage, but very good sonics.
Share and Enjoy,
WMS
My ears were/are happy with a 50 ohm "i/v" load feeding a Lundahl LL1674 amorphous core 1:8. Lowish output voltage, but very good sonics.
Share and Enjoy,
WMS
wildmonkeysects said:A while back Lynn Olson (if I may paraphrase) looked for spurs up out of the noise floor, and found 75 ohms or less to be ok.
My ears were/are happy with a 50 ohm "i/v" load feeding a Lundahl LL1674 amorphous core 1:8. Lowish output voltage, but very good sonics.
Share and Enjoy,
WMS
Hi,
We have encountered long ago that 50 ohm might be some max value, consider the fact that the current output of the PCM DACs is not so good, and diodes start conducting a bit already at much lower voltages. Doede has done some measurements:
http://www.dddac.de/pcm63/DAC_I-V_Resistor.htm
We know use less than 1 ohm in our IV converter for the PCM1704
best
Guido
I always thought that DACs don't have current outputs but switched resistors or caps and they need to be fed into a perfect (virtual?) ground in order to sum correctly.consider the fact that the current output of the PCM DACs is not so good
Is there measured data confirming that simple resistors or transformers can do the job?
regards
My ears were/are happy with a 50 ohm "i/v" load feeding a Lundahl LL1674 amorphous core 1:8. Lowish output voltage, but very good sonics.
Share and Enjoy,
WMS
would you please give detail about that setup
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