Click title to read one, or click date to read all below it.
04-12-04
78 reproduction needs different riaa curves than 33 lp repro ... Elizabeth
04-12-04
True elizabeth. i found an article at mechanical music dige ... Albertporter
04-12-04
I have heard favorable comment on a radio shack ic-based pho ... Eldartford
04-12-04
I actually heard that rat shack thing. believe it or not, y ... Jphii
04-12-04
Have any of you heard the bottlehead seduction? there are c ... Albertporter
04-12-04
Hi albert, i find it interesting that you are also delving i ... Buscis2
04-12-04
I'm sorry albert. when you click on the link, it brings you ... Buscis2
04-12-04
The current fascination with "rim drive" (idler wh ... Eldartford
04-12-04
Eldartford, you appear to not like old (inexpensive) technol ... Albertporter
04-12-04
What cartridge are you considering? i have seen some special ... Restock
04-12-04
Hi all fwiw i have enjoyed using a lenco 75 with mono goldr ... Bornin50
04-12-04
Albertporter...like wine, some old technology is superb, and ... Eldartford
04-12-04
Well i find this discussion of cheap'n fun phono stages fasc ... Johnnantais
04-12-04
Albert, jean turned me on to the asl mini, which he loves, w ... Bin
04-12-04
Eldartford. i don't need anything nor would i ask it of yo ... Albertporter
04-12-04
The grado family of cartridge builders have been around for ... Theaudiotweak
04-12-04
Albertporter...i guess i didn't grasp that your objective is ... Eldartford
04-12-04
I can help you there, eldartford. the lenco can play over a ... Johnnantais
04-12-04
Johnnantais...thanks for the good writeup about idler wheel ... Eldartford
04-13-04
Johnnatais has answered the variable speed questions about t ... Albertporter
04-13-04
Eldartford, the speed variations caused by belt reaction fal ... Johnnantais
04-13-04
Another deck, unfortunately more rare (particularly outside ... Willbewill
04-13-04
Johnnantais...a massive turntable will prevent high frequenc ... Eldartford
04-13-04: Johnnantais
Eldartford, do you know I never actually tried to play 78s on my Lencos? I stumbled on them entirely by accident one day, and that particular model being defective, I simply threw out everything which was not directly connected to the drive system, thus accidentally modding it and being blown away by the sound. From there, hooked, I pursued the idler wheel grail. But from perusal of various 78 and mono stylii, I believe these can be tracked today from as low as 2 grams and up to 5. Others with hands-on experience will know more.
While it's true that high mass platters overcome belt reaction to a certain degree, what is actually happening, since physics cannnot simply be banished, is that this mass lowers the frequency of the reaction, as the belt reaction must overcome greater mass/inertia, thus reacting continually, but at a slower pace. This is why high-mass decks sound less lively than lower-mass decks (their bass rhythms messed up by low-frequency reaction), which major in PRaT, versus the information retrieval of high-mass decks which overcomes high-frequency belt reactions. I used to have one of the highest mass platters in the business on my Maplenoll, a 40-pound lead platter. Yes, there was greater retrieval of information, but it also sacrificed the famed Maplenoll liveliness. I eventually went back to the lower-mass Maplenoll Athena, which is far more musical. Thus is the high-mass/low-mass phenomenon exposed, as the human ear is still the best measuring instrument we have, with respect to music. Once I had a good idler wheel properly set-up, I was forced to seek the causes of the great increase in detail, attack, bass, imaging, and so on. So, having experience of both high-mass (Maplenoll Ariadne) and low-mass (Ariston, AR-XA modded, Maplenoll Athena) belt-drive 'tables, I came up with the above theory, which seems to fit the facts. A recent review of the Origin Live Aurora Gold turntable in Stereo Times had the following to say: "The heart of music is time and timing: music unfolds in its own created universe of time, divided into smaller sections placed within that fluid time scheme, divided further down to the individual note. Each individual note begins with silence, rises to its intended volume and then decays. Identifying that note, the instrument playing it and the physical location of it are all based on an exact sequence in time. It wouldn’t be too false a metaphor to understand music as an emotional language based on intervals of tone and time."
And what has better speed stability than an idler-wheel drive with perfect wheel, incredible cogless 4-pole 1800-rpm motor, and massive balanced flywheel platter which creates a closed system (groove modulations and stylus drag? what's that?) in which the platter smooths out the motor's revolutions while the motor carries the platter relentlessly? And yes, you're right, this extemely high-torque design is an accident of being designed for high stylus pressures - 5 to 10 grams - in the old days. But properly designed and implemented (a heavy, non-resonant plinth), the extreme speed stability regardless of groove modulations and stylus pressure is entirely audible at 33 1/3 rpm, even compared to the best of belt-drives. Again from the same review: "Since accurate tracking of the timing of a note - it’s loudness, attack, flowering and decay is also the perceptual mechanism behind reproducing a coherent stereo image, it’s no surprise that the I/AG is as adept at reproducing the stereo illusion as it is with the music unfolding within that illusion." And here speed stability must be the reason my Lenco with Rega arm clearly out-images and out-soundstages my parallel-tracking Maplenoll (the precursor of the E-T tonearms, the Maplenoll having been designed in part by Bruce Thigpen). To conlude, it's not for nothing that I flipped over the Lencos. A series of accidents beginning with a 'table which was designed to combat extreme stylus drag in the days of 78s, and ending with a lad who already owned a Maplenoll Ariadne and Audiomeca turntable, but in a foreign land needing a table cheap and picking an idler-wheel 'table he had never heard of at a flea market.
Johnnantais (System | Threads | Answers | This Thread)
04-13-04
Where did the information above come from about "mass l ... Rich121
04-13-04
Richard, the information came from nowhere but simple physic ... Johnnantais
04-14-04
I opened my new decca arm today and it is beautiful. unbeli ... Albertporter
04-14-04
Richard for an explanation? of the 'belt stretch/speed anom ... Bornin50
04-14-04
Richard apologies - this is the correct link http://www.i ... Bornin50
04-14-04
Excellent site, bornin, it's added to my vinyl file! Johnnantais
04-15-04
Still not hearing from audiogon members as to which phono st ... Albertporter
04-15-04
Dear albert & others: two links, one for multicurve riaa, a ... Gregm
04-15-04
Albert, the ear is nowhere near the mini phono in terms of p ... Johnnantais
04-15-04
What about the gsl jazz club phonostage, which is designed s ... Bmckenney
04-15-04
Bmckenney, that would be perfect. i hope you make that liste ... Albertporter
04-15-04
Albert: will you be listening to the 78's in true mono? pr ... Dekay
04-15-04
Cool idea dekay. if i take over another room my wife will h ... Albertporter
04-16-04
Don't be a spoil sport albert. your wife may just be intere ... Dekay
04-16-04
Then we would have to get one of those dogs like rca used in ... Albertporter
04-16-04
Albert, i talked to a buddy of mine who built the newest ve ... Jphii
04-16-04
Thanks for the link jphii. good news too as this is a true ... Albertporter
04-17-04
I just wrote an email to the mingda people, asking about the ... Albertporter
04-17-04
Mingda and chineese tube gear..... i was considering that o ... Bmckenney
04-17-04
To do this right, someone would need a sample of five or six ... Albertporter
04-17-04
As for cartridges, you might take a look at grado. there is ... Jc2000
04-18-04
I was thinking two head shells and two cartridges. 78's are ... Albertporter
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