I don't think that it is a suspension issue at all, but the frequency of the warp wow amplified by a phono preamp with no high-pass filter being fed to vented speakers that, by definition are undamped below their primary resonance. Remove any of the factors and the problem goes away. There is a little test that you can do to determine if the problem relates to acoustic feedback. Without the motor on, lower the cartridge onto the groove, advance the volume to the maximum level you listen at and, with your hand on the volume, gently tap the plinth and the surface that the table sits on. Begin tapping harder if the sound of the taps seems well damped. Acoustic feedback, breakthrough if you will, will cause the table to begin feeding back. That's why you need to keep one hand on the volume control - you will need to turn it down quickly if howling begins. If this problem shows itself it is indeed acoustic feedback and is related to the suspension/support/proximity to loudspeakers. Report back as it is possible to fix it. My question is did you have this problem with your current table but with your former phono preamp?
OK, I said it...
Just got the new turntable running this morning. Installed the Kontrapunkt B on the Rega P9; a most nerve wracking job. Well I can't find a crow and I am not yet ready to eat some, but here are my very preliminary findings based on listening to one side of two albums (one brand new, Art Blakey's "Indestructible"), one that's been on hand for a while, (Dire Straits "Communiqué"):
my greatest peeve, surface noise: way less, but still a bother on softer cuts or portions of pieces where the volume is low;
soundstage: quite incredible;
layering of instruments: quite incredible;
natural tone of the instruments: stunning;
treble: well the cymbals are back the way I like them; sharp attack and decay when hit near the centre, sharp attack and shimmering decay when hit nearer the edge;
bass: not the subwoofer-type of bass, but the overtones are more present, that is an acoustic bass has that plummy quality.
Well I am not a "convert", in the sense at looking at the experience as crossing a threshold from where you never go back. I still think that digital is better at doing silence, which is so necessary in music, and, in letting the sound of soft music come out without the anxiety of tick and pops.
So far, I have not listened to enough music to have a real hard opinion about the merits of better analog equipment. Suffice it to say that in answer to the post wondering if any progress has been made in the last twenty years, I would have to say quite a lot. This is based on a very quick, very subjective appreciation at the moment. What is the table's, what is the arm's, what is the cartridge's contribution in all this: very hard to say, and will never be known since I have no intention of playing mix and match.
Am still using the Sumiko Phono Box for the time being. The next move is a new phono section. Is there another level yet to be achieved with that upgrade? I while back I would have been extremely sceptical, now I hope there is. What bugs me, is to have to make another leap of faith.
Well, I will keep you posted. Good day.
my greatest peeve, surface noise: way less, but still a bother on softer cuts or portions of pieces where the volume is low;
soundstage: quite incredible;
layering of instruments: quite incredible;
natural tone of the instruments: stunning;
treble: well the cymbals are back the way I like them; sharp attack and decay when hit near the centre, sharp attack and shimmering decay when hit nearer the edge;
bass: not the subwoofer-type of bass, but the overtones are more present, that is an acoustic bass has that plummy quality.
Well I am not a "convert", in the sense at looking at the experience as crossing a threshold from where you never go back. I still think that digital is better at doing silence, which is so necessary in music, and, in letting the sound of soft music come out without the anxiety of tick and pops.
So far, I have not listened to enough music to have a real hard opinion about the merits of better analog equipment. Suffice it to say that in answer to the post wondering if any progress has been made in the last twenty years, I would have to say quite a lot. This is based on a very quick, very subjective appreciation at the moment. What is the table's, what is the arm's, what is the cartridge's contribution in all this: very hard to say, and will never be known since I have no intention of playing mix and match.
Am still using the Sumiko Phono Box for the time being. The next move is a new phono section. Is there another level yet to be achieved with that upgrade? I while back I would have been extremely sceptical, now I hope there is. What bugs me, is to have to make another leap of faith.
Well, I will keep you posted. Good day.
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- 48 posts total
- 48 posts total