lewm

Responses from lewm

Pioneer PL630- upgrading the phono cable?
If it's a cable that was OEM to go with the Pioneer TT, chances are that you can easily do better without spending a lot of money.  On the other hand, there is no urgency.  Why not listen to the OEM cable for a few weeks, then purchase a reasonabl... 
Investigating if ultrasound is harming LPs
Ijgerens, I didn’t get to see your first post until after I wrote mine. I thought it was excellent.  
The Mood Was Ruined
In your desire to show your displeasure, which is understandable, some meaning was lost.  Are you saying that the LP was grossly defective or just dirty?  And what Technics are you using that still has autolift? I am not aware they have made such ... 
Investigating if ultrasound is harming LPs
Then there is me, who doesn't even own a US RCM and does not even care if US can damage an LP.  But for the umpteenth time, the question put forth by the OP was about a METHOD to determine whether US RCMs can damage an LP.  Not per se whether US d... 
Discuss The Viv Lab Rigid Arm
I like and respect PL of SS, but I would not value his opinion of underhung tonearms any more than I value the opinion of any other smart vinylphile.  Then, regardless of what any such qualified individual would opine, I would still want to take a... 
Investigating if ultrasound is harming LPs
Pindac, If you can bear to read all the posts on this thread (and I don't blame you if you cannot bear it), I invite you to look for mine back up near the beginning, where I suggested that one proper way to make the assessment is to use test LPs w... 
What's A Good Upgrade From A Manley Steelhead?
Using what with a SUT?  The Steelhead has three pairs of phono inputs.  Two are for MC cartridges, and one is for MM.  You can choose up to 65db of phono gain.  So there would be no need for a SUT with most LOMC cartridges down to about 0.2mV outp... 
Discuss The Viv Lab Rigid Arm
Dover, perhaps to add to what Intact wrote, or not, if you move the pivot forward so the tonearm is not underhung but becomes either overhung or even set to hit the center of the spindle (I guess we can call this "un-hung" or neutral hung), then y... 
Investigating if ultrasound is harming LPs
Cleeds, if you want to know whether your US RCM can damage your LPs, then you have to design an experiment to answer THAT question on the physical level. If you want to know whether you can hear a problem, then just listen. Aural memory is so poor... 
Investigating if ultrasound is harming LPs
No objection to any of your finer points.  But you posit all good reasons why the weigh method is not the right approach, on which we agree.  
Discuss The Viv Lab Rigid Arm
rsf, In my opinion, the pivot point should be fixed in space.  I do not view Roy Gregory's report that you cite as a good thing. Dover, I have to think about this some more, but off the top of my head, I do not think it is possible to set up an u... 
Investigating if ultrasound is harming LPs
How bad can the damage be? Good question. But I thought the question was how to detect damage, not whether it’s bad (or noticeable) or not. Whether it's noticeable in your test of course would be a function of the listener’s acuity as well as the ... 
Discuss The Viv Lab Rigid Arm
Raul, I get your position vis a vis tube vs transistor.  You are entitled to it.  But you cannot seriously be thinking that the idea of an underhung tonearm is or ever was foisted upon us by the evil "AHEE", can you?  I hope not.  It's quite the o... 
Investigating if ultrasound is harming LPs
Like I said above, but which gleaned no attention at all, if you want to find out whether US cleaning can damage the encoded music signal on an LP, the way to go is to look directly at the signal on an LP before vs after US cleaning, not the weigh... 
What's A Good Upgrade From A Manley Steelhead?
Tomic, any time you wanna talk Beveridge direct drive amplifiers or spkrs, you can pm me. It’s a labor of love. I’ve probably got a few thousand dollars worth of spare tubes, capacitors, resistors, and even transistors in my basement workspace. F...