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In Reply to: RE: Jpp for DAC as Master (using 24/88.2) yields an additonal 4ps of Jitter posted by cics on March 31, 2008 at 08:38:13
Did you made all the necessary modifications in the control software of the RME to put it on Slave?
Also, did you terminate to 75 Ohm the WC input on the RME? In the manual it says that the WC input is not terminated:
"When shipped, the word clock input is not terminated. Termination with 75 Ohm is available via jumper X105 on the Expansion Board.
The HDSP 9652’s word clock input can be high-impedance or terminated internally, ensuring maximum flexibility. If termination is necessary (e.g. because HDSP 9652 is the last device in the chain), bring jumper X105 on the Expansion Board into position 75 Ohm."
If properly setup it is very unlikely for the DAC to have more jitter when clocked internally than when it receives the clock from the soundcard. Did you repeat the measurements to see if they are consistent?
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