o_holter

Responses from o_holter

Why are my woofers pumping?
Before going on, I need to tighten the center shaft (with the magnets) to the plinth on my Hanss T-30. It is fastened by four screws from the underside of the plinth. Does anyone know the type and dimension? The screws are very hard to see unless ... 
Phono stage
I would like to correct a rather broad statement I made above. The Aesthetix is very quiet with the best low noise tubes. These are not very expensive (new production). Even with somewhat worn (but wonderfully musical) Telefunken NOS tubes in the ... 
Why are my woofers pumping?
Han_n - yes I will test this more. The "low cut" option may be what I lack. Toddc2 - thanks, I have followed up. I mailed an audio tech the other day, is it likely my woofers are getting worn out? Even if I don't hear clear problems? Answer: afte... 
Why are my woofers pumping?
Thanks, all! I think we can conclude that1) the Atlas / SME V combo is very “receptive” in the lowest frequencies, and that in some resolving systems this may give unwanted effects like woofer pumping. 2) this is mainly a resonance problem, not a ... 
Why are my woofers pumping?
There must be other Lyra cartridge / SME V owners out there, who have or don't have woofer pumping - ? Would be nice to hear from you! And maybe J Carr from Lyra could give a comment?Atmasphere's advice reminded me of the old trick with the SME V ... 
Why are my woofers pumping?
Invictus005: I've tried your suggestion now, holding the plinth, but it makes no difference. This is a very heavy player (83 lbs). I used the runout on the Hifi News test record. And noticed, once more, that the woofer pumping is much reduced, com... 
Why are my woofers pumping?
tzh21y - yes I think the same. Maybe even small things help, getting the resonance up. Stripping the arm of all extra mass and changing the counterweight position, like Atmasphere suggested. Invictus, Almarg - I don’t think the player is the probl... 
Why are my woofers pumping?
Thanks, all! Great to get so much expertise input!Cartridge is probably OK, not worn, no sign of wear, or mistracking. Like I said, it is not the Io phono stage, since when the stylus is lifted from the groove, the woofers stop pumping. I have tri... 
Why are my woofers pumping?
Thanks, Raul. I will test some of your suggetions - platter mat - and report back. But like I said before, it seems very basically "physical" - it happens before eventual mechanical turntable etc problems.  
Why are my woofers pumping?
From the A-gon opinions so far, here, such examples are not very interesting. It seems that the SME V can work OK with the Atlas, but it is not the ideal arm - ? I will look for other cart / arm combinations, when my current one runs out, and I ha... 
Why are my woofers pumping?
Example - audio review - SME V works well with the Atlashttp://www.tonepublications.com/review/review-lyra-atlas-cartridge/ 
Why are my woofers pumping?
Thanks Cleeds, but I don't agree. Please prove the case. Why does the arm kill the cartridge?  
Why are my woofers pumping?
I am happy with everything this combo does, except that it overarches in the low region, takes in too much. What about a simple cut off below 10 hz. Maybe a DIY. I use XLR cables. Suggestions, anyone? 
Why are my woofers pumping?
Thanks Cleeds - yes, I just tried with and without oil in the fluid damping trough on the arm. Made no difference.  
Why are my woofers pumping?
It is a long-term discussion - https://forum.audiogon.com/discussions/how-to-change-effective-mass-of-a-sme-vAtmasphere, isn’t your Triplanar arm mass higher than the SME V? I should get the arm mass down, to get the resonance frequency up - true?...