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Why are the vocals on some records hidden behind the music on my system?

Help! I am new to this forum, but have been into audio for over 45 years and have never had this problem before. I was lucky enough to come into some money and decided to use some of it to up grade my system for the first time in almost 30 yrs. The system consists of McIntosh MC-402, McIntosh C-100, McIntosh MCD-500, VPI HW19 MKIII, Soundsmith Aida, Furutech Ag-12 phono cable, Furutech silver head shell wires, Furutech interconnects and Furutech speaker cables (yes I like Furutech) and Raidho XT-3 speakers. Now on some albums the vocals are buried behind the music and you have a really hard time hearing the singer? Not all albums are voiced in this manner but enough that it is bothersome. I have a large dedicated man room (24 x 27) with minimum treatment. CDs sound just fine so I feel that it is with the phono preamp in the C-100? I have moved the speakers 100s of times and have them at 5' 8" apart and 8' 1" to the focal point and the soundstage is good and the vocals are better, but you still have to really listen hard to hear certain vocals on some albums. Most of my albums are 30 to 50 years old and have been cleaned with a sonic cleaner (best thing ever imho). Even some of my new heavy vinyl has this problem.
scooby2do
raymonda
847 posts
 
You also indicated that you have aftermarket leads in your head shell. They should be check to ensure you did not inadvertently connect the wrong.
lewm
6,770 posts
 
Just to complete the list of suggestions, so that every possible nook and cranny of LP playing has been covered, try playing with VTA/SRA by raising or lowering the tonearm pivot a tiny bit.  But like I wrote up above, I really think you are hearing a characteristic that may be inherent to this particular cartridge, albeit you probably can change the soundstaging or tonal balance or whatever you want to call this problem at least a bit by making very small changes here and there.  Good luck.


coldears
71 posts
 
I had this happen just recently. I changed amplifiers from Unison S6 to an Allnic  T1500. I really love the Allnic but at times it would seem to emphasize sibilants. Swapped in some TEO liquid metal and sibilants got really bad. As the cables broke in sibilants got far better but vocals are recessed behind the instruments on some recordings. This did even out somewhat as things broke in but does remain. Tubes, cables, cartridge.... synergy. ..., or a more accurate presentation of the recording. 
stevecham
3,298 posts
 
You have phase cancellations that are likely cause by a misaligned catridge. I too have had this happen and proper ailgnment totally solved the problem. Be aware that not all protractors work properly. I was using a dB and found that it was 2-3 mm too far forward on overhang. Once that problem was solved everything came into sharp focus.
czarivey
4,494 posts
 
As an additional idea, I would suggest calling to McIntosh to find out what's the best solution on using your cartridge. It also seems to me that you should not have these problems regardless of how far you underdriving your input and they can probably test it on their equipment. I used .5mV Shelter cartridge on my Musical Fidelity V-LPS MM phonostage and was able to bring volume. Vocals were OK and balanced every record played.
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