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Mft 's suggested VTF: Follow or not to follow???

Dear all,
I would like to seek your advice on this issue: Should we or should we not always follow the manufacturer's suggested VTF???

I've been dealing with female vocal's sibilance since like forever and NOTHING seems to help totally eliminate the phenomenon of sibilance pulls to the left channel !!! I have read numorous posts and try them all without achieving the level of satisfaction i expect.

I ran though this problem with an Avid Acutus-Origin Live Conqueror tonearm - Koetsu Urushi, SME 20/2 - SME VI.Vi - Lyra Helikon - Project Perspective - Sumiko Blackbird on discs like Holly Cole " Dont Smoke In Bed", Diana Krall " From this moment on"...(All of them are Classic Records). Using Feikert Protractor AND Wally's universal tractors (have settings for most of popular arms), I can achieve rock solid imaging, huge soundstage and make the speakers totally disappear with LP playing, EXCEPT making that siblance disappear ! With other discs like Classical, Jazz, 60s-70s-80s-90s pop/rock, I DO NOT detect (or extremely rare) distortion/mistracking. ONLY Female vocals, especially discs from Classic Records.

I'm very careful and patient in setting up turntables, also played around with VTF, VTA, Azimuth...etc..etc but i cannot get rid of that annoying sibliance. On some discs, that pull-to-left-channel never seems to happen, but it always happens to some degree in Classic Records' female vocals. Until now, i'm so frustrated I dont know which to assump: my setup or those discs??? Would greatly appreciate if someone can point me to some directions.

(I have the tendency to refuse in believing that Classic Record's mastering-cutting head is cutting these bad sibilance in discs like this..hm..)

now, a question also emerges during my LONG setting-up sessions:
ALL of the cartridges-arms-tables combo that i have tried (listed above)only pass 2nd track and NEVER get passed the 3rd Anti-skating track on Hi Fi+ Test record (the 300hz, 14dB). With all other parameters (VTA, VTF, Alignment, Azimuth..) carefully checked, IF i use more VTF (up to 2.1-2.2gr for Lyra Helikon, 2.3-2.4gr. for Blackbird), the cartridges tracks a bit better.

So..Should i use the VTF which helps the catridges track better or just stick with what the manufacturer suggested VTF and forget about the HiFi+ test record? My concern is that those sibilances are mistrakings, and that will ruin my records ( i care more about records than cartridges !!)

PS. Even with the cartridges tracking better, the sibilance issue doesnt improve much.
Thanks in advance.
jaytea
jaytea OP
78 posts
 
Hello all,
I'm extremely happy to inform you that i have solved the sibilance & tracking problem that i recently encountered in my system.

The thing was that i had been using the Loefgren alignment for most of my turntables (since this is recommended for modern records that have the modulated grooves (musical signal) no less than 65-66mm from the center of the record, as stated by Mr. Wally Malewick). When i encountered the sibilance & tracking error problem, i tried many different suggestions from members from audioasylum and audiogon with little success, I got very frustrated and i decided to re-align my setup again. This time, i took time to read the manual of the tonearm i am using (SME IV.Vi) very carefully. I discovered that i have overlooked the SME arm's nullpoints, which coincide with the Baerwald alignment's nullpoints !!! (Stupid me). I decided to try this alignment since it makes more sense on the SME tonearm.

After carefully seting up my tonearm this time using the Baerwald method, the tonearm/cartridge now sounds much cleaner with less, tighter and cleaner sibilance and distortion. The sound now is more natural than before!

Now, I am not very sure if those two alignment methods could be used interchangeably on different tonearms, but if the tonearm manual specifies the nullpoints, better choose the alignment scheme that is closest to ur tonearm geometry. Given that those two methods only result in addressing the tracking error differently, i made an assumption that I could just pick either one and it just did not work that way, at least for me.

I also tried to use the WallySkater to set the anti-skating and it is almost identical to what is suggested by SME 's manual. As Doug pointed out, the HiFiNews test record suggest too much anti-skating (Thanks, Doug).

I'd like to thank all and everyone of you who have contributed to this post to help me solve this problem. I really appreciate all of your inputs.

Best regards.
buffyjames
38 posts
 
When setting up my Superscoutmaster, the instruction book was clear on leveling the table. It MUST be level, and the best way is to put a level on the platter front to back, and then side to side. I had an SME V sometime ago, which didn't seem to be problematical, however with my VPI unipivot arm it was stressed that laveling is VERY important. Try to level yours as discribed above.
dougdeacon
3,338 posts
 
Aha! Glad to hear you found a way to eliminate (or at least reduce) the problem.

I don't think your improvement is particularly because the SME is designed for Baerwald. It's because Baerwald results in lower overall tracking distortion than most other schemes, on any pivoting arm.

I've always preferred Baerwald, even on arms designed for something else, like Rega's. (Using Baerwald with a Rega usually requires a table with a moveable armboard, but that's another story).

Enjoy
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