lewm

Responses from lewm

Confused about compliance matching with airbearing
I am not at all clear on the significance of lateral mass. There are posts on the internet to indicate that ADDING lateral effective mass, e.g., by fixing weights to either side of the pivot (in a pivoted tonearm, of course) has a beneficial effec... 
Confused about compliance matching with airbearing
If you are concerned about lateral mass, contact Dave Garretson via this site or via Audio Asylum. With his custom-made parts, he has taken it down way below 80 gm for the Terminator. I expect he will chime in here anyway. He is using a high compl... 
What would be the best "attainable" Denon turntabl
http://www.hifido.co.jp/KW/G0301/P0/A10/E/30-10/S0I was surfing Hifido, when I found the above item. Great turntable and tonearm with decent plinth for less than $1K. Hifido will ship internationally. 
What would be the best "attainable" Denon turntabl
Electrically restored DP80 in a slate plinth is in the same ballpark with an electrically restored Technics SP10 Mk2 in a slate plinth, and the Denon is much less expensive for some mysterious reason. I own both. Electrical work on Denon includes ... 
Albert Porters after market panzerholz plinths
Mapman, Do not agonize over the science, because there IS no good science in this endeavor. Experiments could be done but who would fund them and who has the time (and who cares enough)? The path is open to you based on empiric observation. Obsidi... 
Albert Porters after market panzerholz plinths
Mapman, In less sophisticated terms, that's what I said to the guy who posted those data on Vinyl Engine, to which Tim referred. He responded that orientation of the grain structure of the slate would make no difference to the outcome of his study... 
Albert Porters after market panzerholz plinths
Tim, I saw that post several months ago. The guy is somewhat of an engineer and seems to know a lot more about materials science than I do, but his conclusions don't remotely compare to my personal experience, certainly as regards MDF vs slate. In... 
$12K Laser turntable vs $12k hi-fi turntable?
Mitch, From the tenor of your post, it would appear that you think there are a whole class of laser turntables. Not so. There is ELP and only ELP, as far as I know. Given the cost ($12K must be for their low end model; the top line one costs much ... 
Adjusting SRA using macro lens vs microscope
Doug, The Ortofon M20FL Super and the Azden P50VL (or something like that) are much improved with a bit of positive VTA. Also, back in the day I recall that my Grado TLZ also seemed to prefer slight positive VTA. (Paradoxically the bass response i... 
Adjusting SRA using macro lens vs microscope
Doug and anyone else who might know, do you think it was ever thus with cartridges? I mean to ask whether it has long been a custom in the industry to set the cantilever/stylus angle such that by leveling the top surface of the cartridge body with... 
Who needs a MM cartridge type when we have MC?
Dear Franklin, Do you know the phrase "garbage in/garbage out"? It means that the conclusions reached by computation are only as good as the input data. In this case, the data are not very good, so don't worry about it, and give it a try. As Raul ... 
2010 RMAF Analog Reports + Meet and Greet
I will be there, too. I am on a quest for high-ish efficiency, high-impedance full range speakers that can work well with my Atma-sphere amps and pose a challenge to my present Sound Lab M1s in terms of coherency and transparency. I hope to listen... 
Albert Porters after market panzerholz plinths
Dear Radicalsteve, 4.5 KILOGRAMS? Really? Holy patootie; that is 9.9 lbs, which is more than the platter weighs on a Mk2. How long does the table take to get up to speed, not that this alone is any measure of how the servo functions with such a hu... 
Albert Porters after market panzerholz plinths
Dear Albert, Thanks for the further clarification on which turntable gets the Micro mat. I fully agree that the Micro and the Mk3 would go well together. My reservations only relate to using the Micro with the much lighter and much less torque-y M... 
Albert Porters after market panzerholz plinths
Albert, Thanks for your response on mats. It is surprising that your favorite and second favorite mats are wildly different in material construction AND in weight. The Micro, according to others above, weighs ca 4 lbs and the Boston Audio Mat, whi...