Originally Posted by TJ7
HDMI Control must be turned ON for pqls to work and FWIW don't bother. You won't be able to hear any difference and HDMI Control makes a mess of user friendliness.
I have to respectfully disagree. Yes opinions on this vary (widely) - the PQLS does make some difference when you compare transports without the feature connected to the same receiver (all using HDMI, all using same cables) and all using same power sources and speakers.
It's a very subtle difference some can hear (the Jitter effect) but is more pronounced depending on the non-PQLS sources you have connected playing the same CD source materials. Some non PQLS gear has very low jitter so the difference is not really present by comparison.
I can affirm that on my professionally calibrated SC-07, with the same CD source material (quiet source material - not compressed rock, pop etc) I sometimes favor the PQLS transport. My two sources are DV58AV -HDMI Control no PQLS and 05FD - PQLS HDMI Control enabled. Pure Pioneer system (with the SC-07 and a Pioneer 111FD plasma in the same chain).
I can't speak to a non-Pioneer system so YMMV as may our ears.
My point of reference is vocals from old quiet analog masters (Dean Martin 1950's recordings for example). There i hear slight diffrences in tonality (and no I can't describe it better than to say the 05FD is slightly superior in that regard). Could be mojo but I can hear a difference with some discs and some music.
Does it make a difference for all music? No - not on pop, not on compressed junk - probably because the recording and mastering don't help with the low dynamic range.
Do the transports differ yes - but digital is digital right? Ha.
Bottom line - if I had to get a transport for the SC-07 and I could get a 51FD or a 05FD cheap for single disc playback - I'd pay an extra $50-100 for it.
PS - you can turn the display off with the display remote and playback will continue. Yes it is a pain.