Just using a computer to remove ( almost ) all of the distortion of vinyl. And perhaps remove all of it's charm.
Not really. The stock optical stage can be modified or replaced. Not too hard to figure out how it works.
I agree playing an LP at 1/2 speed does nothing much for you. The low frequency cart/tonearm resonance moves into the audible range for one thing.
Keeping track of the fringe counting is a nightmare, I have a friend who made many DARPA funding proposals on optical distance measuring, the differential measurement has unbelievable resolution but the macroscopic one has problems. You need to realize that one full fringe for something like LIGO is totally off scale.
Strain gauge cartridges, if you think about it, are basically the same thing, just more highly refined, as the piezo ceramic cartidges, which have been around for decades.
And optical cartidges actually have been around since the 1930's
The early Philco "Beam Of Light" record changers used a small bulb and photocell, with a mirror connected to the stylus cantilever.
And optical cartidges actually have been around since the 1930's
The early Philco "Beam Of Light" record changers used a small bulb and photocell, with a mirror connected to the stylus cantilever.
Essentially no different than optical film soundtracks. Strain gauge transducers are pure displacement not the same as piezo/crystal transducers.
Last edited:
That's why I said 'relaunched'. But now the basic model from DS audio is $4800.
One more type of phono cartridge was the Zenith moving vane style.
A set of vanes, one connected to the stylus, one fixed, varied in capacitance with groove modulation, and this was fed to an AM RF oscillator which was then fed to an audio portion of the radio/phono.
Wurlitzer jukeboxes used this system in the 1940's.
I restored an 1100 model (78RPM) with that system for a customer.
But with keeping things simple and easy, I converted it to using a ceramic cartridge
Weathers, another turntable maker from the 1950's and 1960's, used a similar variable capacitance cartridge in their Synchromatic Super 66 turntable, which used FM modulation.
Interesting. I guess someone with skills could do a 3D scan, and read it at any chosen sampling rate.
I wonder if it would be practical to do a distortion profile mimicking mm, mi, or moving coil cartridges? Could an affordable Decca profile be available?
Maybe this could easily be applied to any digital stream.
And then layer in some nice 2nd harmonic profiles too.
😐
So how bout dipping a q tip in nitric acid, dissolving the offending silver, rinse with distilled water?
Because the mica itself has deterioration due to carbonized paths already burned into it.
The B+ leaks over to the grid of the following stage and makes horrible noise.
Look, there's no easy way to remedy the "silver mica disease" other than tearing the assembly out and rebuilding with external dipped mica caps.
You can find numerous posts, pics and videos of this all over the internet.
I'm only one tech of many that has managed to do this successfully.
How about coating the record with a reflective surface, it would have to be VERY thin, ( but I think glass mirrors are given a very thin silver coating for reflecting telescopes ), and the reflections read by a laser, possibly by detecting how much a beam of light is deflected by the vinyl ripples.
I came across this review from a Proac 125 speaker owner.
I think that the emphasis on recommending cables so that the speakers can faithfully reproduce different types of music falls into the category of the title proposed by the OP.
It's very funny, how he repeats himself: Believe me!
He is a good seller !
" Speakers have the bad habbit to present the higher notes of a violin with a slightly hardness, but if you find the right cables (like Cardas Neutral Reference ) the violins sounds so true with the right amount of metal,wood,sweetness of the (various brand) violins of today and past that is almost as good as possible for the under 3000 category. I dislike fake violin anemic sound and of course edgy, aggressive and metallic lean violin. But believe me, try a matching cable combo based on higher frequency spectrum and sweet and detailed amps and you will be amazed."
Speaker Asylum: REVIEW: ProAc Studio 125 Speakers by [email]demosasp@otenet.gr[/email]
I think that the emphasis on recommending cables so that the speakers can faithfully reproduce different types of music falls into the category of the title proposed by the OP.
It's very funny, how he repeats himself: Believe me!
He is a good seller !
" Speakers have the bad habbit to present the higher notes of a violin with a slightly hardness, but if you find the right cables (like Cardas Neutral Reference ) the violins sounds so true with the right amount of metal,wood,sweetness of the (various brand) violins of today and past that is almost as good as possible for the under 3000 category. I dislike fake violin anemic sound and of course edgy, aggressive and metallic lean violin. But believe me, try a matching cable combo based on higher frequency spectrum and sweet and detailed amps and you will be amazed."
Speaker Asylum: REVIEW: ProAc Studio 125 Speakers by [email]demosasp@otenet.gr[/email]
Re: academia50's #14777 above....
This person, Proac125 is typical of the "bought into" crowd.
By that, I mean some people are easily led to believe nonsense that they've heard from someone - particularly over the internet.
And/Or they're attempting to sway others to spend their money on BS products that don't do anything.
Face it, the internet is loaded with BS, just like tv advertizing and news sources.
Sad state of affairs these days.
This person, Proac125 is typical of the "bought into" crowd.
By that, I mean some people are easily led to believe nonsense that they've heard from someone - particularly over the internet.
And/Or they're attempting to sway others to spend their money on BS products that don't do anything.
Face it, the internet is loaded with BS, just like tv advertizing and news sources.
Sad state of affairs these days.
At least one well known and established stereo equipment manufacturer has allied with a cable manufacturer, picking and recommending ones they say they like used with their components. The spokesman hasn't said things sound or measure differently in any way. Amazingly, this company now sells the cables they selected.
I would say it's much older than that. The phrase, "There's a sucker born every minute.", has been around for very long time.
- Status
- Not open for further replies.