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In Reply to: RE: But the question is.... posted by Lew on February 10, 2014 at 18:05:30
In the XA5400ES service manual. Looks like I was pessimistic. The balanced outputs are directly derived from the decoder chip, but there is a low pass filter after the chip and before the XLR output. That filter probably is active and accounts for the reduction in output impedance to 600R, compared to the RCA outputs. There is a different buffer prior to the RCA outputs but no low pass filter. I have no idea why/how the output impedance from that buffer would be as high as 10K ohms, as stated.
Follow Ups:
I hope you read Bill Thalman's post above.
I am glad that we were all wrong on the interpretation of the specs. My XA5400ES sounds far too great in SE mode to be consistent with an output Z of 10K ohms.
You should look into the VSE modifications. They take the 5400 to an entirely new level. New internal clock, and analog stage, but I am pretty ignorant of the details even after Allen Wright tried to explain them to me. (I am just not a techie. to say the least.) Bill would be the guy to ask.
The Sony XA5400ES sounds best via HDMI ,then no mods are required ,used as a transport I find it is better than the Oppo 103 , Oppo Support say all Oppo transports sound the same very poor IMO for BD compared to a Sony BD player especially HF.
Edits: 02/22/14 02/22/14
Yea. well, you have no idea of what you are talking about, as usual. since you have never heard a VSE upgraded 5400. Your schtick was old four or five years ago, so why don't you give it a rest?
Edits: 02/22/14
I have to assume you have never used your XA 5400ES via HDMI , you obviously do not have the partnering DA5400ES, which costs less than your mod. furthermore you still do not have mch only possible via HDMI on the XA5400ES which is far superior to stereo for SACD, so the very expensive mod would be a complete waste of money for me. I am just not interested in hearing stereo only SACD so no point in me auditioning the VSE mod.
Edits: 02/22/14 02/22/14 02/22/14 02/22/14
nt
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