Sean de Silva
Well-Known Member
@jls001 @Hari Iyer @prem @G401fan please help me..
I recently picked up the vibrasorber on hifimart to control accidental finger taps and acoustic feedback. https://hifimart.com/product/sf-vibrasorber-set-of-4/
I've placed one under each foot and on tapping the glass shelf accidentally, the intensity of the output on the speakers has greatly reduced as compared to earlier. Tapping in the immediate vicinity of the vibrasorber feet produces a muffled output and tapping equidistant between the feet does nothing thankfully and has no effect on speakers. I have also unscrewed the TT dust cover so that I can keep it aside while playing and not tap it accidentally.. also using the subsonic filter on the phono preamp.
The acoustic feedback boom too seems to have disappeared hence allowing me to crank up the vol. So I've kinda killed two birds with one stone.
BUT now I have problems that never ever existed i.e. horrible IGD where the vocals sound terribly scratchy and bad especially when the cart approaches the inner grooves. Additionally, the cart tends to skip and jump around in a prolonged loop on quite a few tracks on perfectly clean unused/unscratched LPs. Initially I assumed it was a one-off problem but on playing a couple more LPs the same issues persist so imo it definitely seems like some alignment issue with the cart/tonearm
The twat who fabricated the wrought iron wall mount stand long ago didn't level it and hence I have had to compensate by adding layers of cardboard underneath the rear feet and level the TT using a spirit level. This has always worked beautifully with no complaints whatsoever hence I'm a bit upset as these issues have suddenly cropped up. A minor issue of speed fluctuation when the TT isn't used for a long time but which subsides on regular use. As it didn't settle down this time, I fiddled around with the 33 pitch control/stroboscope and got that sorted out.
I have never ever experienced the dreaded infamous IGD until now! I'm at my wit's end without throwing a fit. I can't play any Xmas LP. I can't play any LP for that matter. Only CDs for now until this gets sorted.
1) Should I use a light wood sheet iso the glass to prevent any resonant vibrations?
2) Could the cart / tonearm suddenly have gotten misaligned? anti-skate has always been set to 2 and tracking force has always been 2g. The
sumiko pearl tracks beautifully at 2g.
Your advice would be much appreciated. Thanks in advance.
I recently picked up the vibrasorber on hifimart to control accidental finger taps and acoustic feedback. https://hifimart.com/product/sf-vibrasorber-set-of-4/
I've placed one under each foot and on tapping the glass shelf accidentally, the intensity of the output on the speakers has greatly reduced as compared to earlier. Tapping in the immediate vicinity of the vibrasorber feet produces a muffled output and tapping equidistant between the feet does nothing thankfully and has no effect on speakers. I have also unscrewed the TT dust cover so that I can keep it aside while playing and not tap it accidentally.. also using the subsonic filter on the phono preamp.
The acoustic feedback boom too seems to have disappeared hence allowing me to crank up the vol. So I've kinda killed two birds with one stone.
BUT now I have problems that never ever existed i.e. horrible IGD where the vocals sound terribly scratchy and bad especially when the cart approaches the inner grooves. Additionally, the cart tends to skip and jump around in a prolonged loop on quite a few tracks on perfectly clean unused/unscratched LPs. Initially I assumed it was a one-off problem but on playing a couple more LPs the same issues persist so imo it definitely seems like some alignment issue with the cart/tonearm
The twat who fabricated the wrought iron wall mount stand long ago didn't level it and hence I have had to compensate by adding layers of cardboard underneath the rear feet and level the TT using a spirit level. This has always worked beautifully with no complaints whatsoever hence I'm a bit upset as these issues have suddenly cropped up. A minor issue of speed fluctuation when the TT isn't used for a long time but which subsides on regular use. As it didn't settle down this time, I fiddled around with the 33 pitch control/stroboscope and got that sorted out.
I have never ever experienced the dreaded infamous IGD until now! I'm at my wit's end without throwing a fit. I can't play any Xmas LP. I can't play any LP for that matter. Only CDs for now until this gets sorted.
1) Should I use a light wood sheet iso the glass to prevent any resonant vibrations?
2) Could the cart / tonearm suddenly have gotten misaligned? anti-skate has always been set to 2 and tracking force has always been 2g. The
sumiko pearl tracks beautifully at 2g.
Your advice would be much appreciated. Thanks in advance.
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