Audio magazine did reported/measure varying lower noise difference using Nylon clamp and no clamp.
Regards.
Regards.
To Hiten:
Audio magazines, like tv shows, radio programs, all benefit from "sponsors" - advertizing.
When you're being paid money or other benefits, it obligates you or your business in a positive way.
You make money....
You survive....
Etc....
Magazine reports/reviews of equipment are meant to SELL things, just like any advertizing does.
Of course, it's done in such a fashion that the average consumer doesn't feel like they're being sold a product - they "think" they're merely reading a story from someone else's point of view - no different than reading on the internet someone elses opinions.
And if the "sell" is carefully designed and carried out, the consumer bites the hook like a hungry fish in the sea.
I used to value assorted audio magazine "reviews", at one time, decades ago, before the "greed" took over in the marketplaces, reviews were reasonably honest and truthful.
People got what they wanted back then...and all was well.
But these people today, attempting to hand me, or at least try to convince me, about the worthiness of some products that I know full well from experience are silly jewels designed to increase or perpetuate revenue for the industry - they may as well give up.
I'm sorry, I don't fall for the brainwashing that others seem to do.
Audio magazines, like tv shows, radio programs, all benefit from "sponsors" - advertizing.
When you're being paid money or other benefits, it obligates you or your business in a positive way.
You make money....
You survive....
Etc....
Magazine reports/reviews of equipment are meant to SELL things, just like any advertizing does.
Of course, it's done in such a fashion that the average consumer doesn't feel like they're being sold a product - they "think" they're merely reading a story from someone else's point of view - no different than reading on the internet someone elses opinions.
And if the "sell" is carefully designed and carried out, the consumer bites the hook like a hungry fish in the sea.
I used to value assorted audio magazine "reviews", at one time, decades ago, before the "greed" took over in the marketplaces, reviews were reasonably honest and truthful.
People got what they wanted back then...and all was well.
But these people today, attempting to hand me, or at least try to convince me, about the worthiness of some products that I know full well from experience are silly jewels designed to increase or perpetuate revenue for the industry - they may as well give up.
I'm sorry, I don't fall for the brainwashing that others seem to do.
I have a couple of platter matters. It seems you can't buy them any more. It's true, you do have to wash them a lot.
Not perfectly flat records
Wiseoldtech, I have a CJ Walker 55 turntable, where there is no mat (felt, rubber, pure cryogenic copper et al) so that the record and the platter effectively create a record that is ~1 kg in mass. Very few records are perfectly flat, so the best method to get the record and platter in good contact (please note not perfect) is to use a record clamp to ensure there is. The platter is made from a material (can't remember what) that has proerties similar to vinyl.
I do not purport to have golden ears, and never have, but when using a clamp I can hear a distinct difference/improvement to the overall sound, viz. better resolution in bass range (and control,) distinct improvement in the mid-range (clearer vocals, more depth to sax, cello etc.) and clean and clear high frequencies.
P.S. The magnetic puck would not work on this turntable, as the bearing housing is made from aluminium and the main bearing is approximately 45 mm down from the platter top - the sub-platter has the bearing/spindle assembly. The main platter fits over the spindle.
Wiseoldtech, I have a CJ Walker 55 turntable, where there is no mat (felt, rubber, pure cryogenic copper et al) so that the record and the platter effectively create a record that is ~1 kg in mass. Very few records are perfectly flat, so the best method to get the record and platter in good contact (please note not perfect) is to use a record clamp to ensure there is. The platter is made from a material (can't remember what) that has proerties similar to vinyl.
I do not purport to have golden ears, and never have, but when using a clamp I can hear a distinct difference/improvement to the overall sound, viz. better resolution in bass range (and control,) distinct improvement in the mid-range (clearer vocals, more depth to sax, cello etc.) and clean and clear high frequencies.
P.S. The magnetic puck would not work on this turntable, as the bearing housing is made from aluminium and the main bearing is approximately 45 mm down from the platter top - the sub-platter has the bearing/spindle assembly. The main platter fits over the spindle.
Last edited:
Hi ferret,
A record sitting on a machined platter does not bond to it unless there is an interpose layer that is very compliant and sticky. This is what the Platter Matter does. On a Thorens table, you have a 2.5 kg record plus the weight of the mat (they are heavy mats).
If someone made a new Platter Matter, I would pay $100 a piece for them without any fuss. I have yet to use a better mat than the Platter Matter. With that mat, all internal vibration in the record is damped right out giving you a clean, much less noisy playback. This is easy to hear when compared to most other mats. I say most for the simple reason that there may well be a mat just as good out there I haven't heard about.
-Chris
A record sitting on a machined platter does not bond to it unless there is an interpose layer that is very compliant and sticky. This is what the Platter Matter does. On a Thorens table, you have a 2.5 kg record plus the weight of the mat (they are heavy mats).
If someone made a new Platter Matter, I would pay $100 a piece for them without any fuss. I have yet to use a better mat than the Platter Matter. With that mat, all internal vibration in the record is damped right out giving you a clean, much less noisy playback. This is easy to hear when compared to most other mats. I say most for the simple reason that there may well be a mat just as good out there I haven't heard about.
-Chris
YNWOAN,
Many thanks for sharing this concept. It's an igenious idea.
This has given me an idea to take the main platter on the CJ 55 to a machine shop and have a 1.5 mm depth ring cut into the surface of the platter, which need only be 15 - 20 mm wide and a total diameter of 70 mm. Have an iron ring made to fit into the recess, and Bob's-your-uncle with some alu make a puck and press fit neodymium magnets .....
Kevin
Many thanks for sharing this concept. It's an igenious idea.
This has given me an idea to take the main platter on the CJ 55 to a machine shop and have a 1.5 mm depth ring cut into the surface of the platter, which need only be 15 - 20 mm wide and a total diameter of 70 mm. Have an iron ring made to fit into the recess, and Bob's-your-uncle with some alu make a puck and press fit neodymium magnets .....
Kevin
I think it's HDF as the platter material - it had another name in use back then, beginning with T ?
I think that coloured MDF has a similar density - probably uses more of the resin to hold the colour and less wood fibre.
Hate to sound like a funk firm/pink triangle shill - i've simply looked more at their products etc over the years than others (and lost interest...I'm more of a retro PT fan) - but their claim was that acrylic was the perfect match with the vinyl, later moving on to foamed PVC as a material for mats and platters.
You can try if for yourself because their mats are nothing more than Foamex, also used for cheap, disposable signage. Body a few 5mm boards together and make a platter. You see it thrown out *all* the time around a city.. no need to pay for this stuff if you have a router. Dare make some for sale on ebay though and they'll come at you hard with threats of legal action regarding their (I'd say invalid ) patent.
I think that coloured MDF has a similar density - probably uses more of the resin to hold the colour and less wood fibre.
Hate to sound like a funk firm/pink triangle shill - i've simply looked more at their products etc over the years than others (and lost interest...I'm more of a retro PT fan) - but their claim was that acrylic was the perfect match with the vinyl, later moving on to foamed PVC as a material for mats and platters.
You can try if for yourself because their mats are nothing more than Foamex, also used for cheap, disposable signage. Body a few 5mm boards together and make a platter. You see it thrown out *all* the time around a city.. no need to pay for this stuff if you have a router. Dare make some for sale on ebay though and they'll come at you hard with threats of legal action regarding their (I'd say invalid ) patent.
Tufnol ? Was that it?
Searching reveals that is a brand name.
As an aside, the company looks to have a good range of interesting materials by the way... Materials | Fabric laminates | laminated plastics | resin bonded fabrics | machined components
Searching reveals that is a brand name.
As an aside, the company looks to have a good range of interesting materials by the way... Materials | Fabric laminates | laminated plastics | resin bonded fabrics | machined components
Platter Matter
Hi Chris,
I do in fact have a Platter Matter, but the suspension on the CJ 55 is finicky to setup, and of a very light construction. I had a good listen to quite few of my "test" LPs, inter alia Mobile Fidelity Powerful People - Gino V; Sheffield Lab - My Name is Makovicz; Decca Holst - The Planets; Philips - Concierto Andaluz etc. After the putting on the Platter Matter (its an appreciable weight) and re-adjusting the suspension and lifting the arm to adjust for the thickness of the Platter Matter, I had another listen. The Platter Matter no doubt is excellent, but not on the CJ 55; Bass was just not right, though extension was better, but the mid-range was not good - distinctly muddied and the high frequencies did not have the "sparkle." Fortunately the arm is the Grace G-727 and is easily adjustable. I made a spacer from an eraser prior to the change so as to reset it to what it was. I used a vernier to measure the Platter Matter so that the height adjustment was as accurate as possible, though using a jig with some horizontal lines also works like a charm to ensure the arm is parallel. BTW tried it with and without the existing clamp - not much difference.
But lets not hijack the thread. Kevin
Hi Chris,
I do in fact have a Platter Matter, but the suspension on the CJ 55 is finicky to setup, and of a very light construction. I had a good listen to quite few of my "test" LPs, inter alia Mobile Fidelity Powerful People - Gino V; Sheffield Lab - My Name is Makovicz; Decca Holst - The Planets; Philips - Concierto Andaluz etc. After the putting on the Platter Matter (its an appreciable weight) and re-adjusting the suspension and lifting the arm to adjust for the thickness of the Platter Matter, I had another listen. The Platter Matter no doubt is excellent, but not on the CJ 55; Bass was just not right, though extension was better, but the mid-range was not good - distinctly muddied and the high frequencies did not have the "sparkle." Fortunately the arm is the Grace G-727 and is easily adjustable. I made a spacer from an eraser prior to the change so as to reset it to what it was. I used a vernier to measure the Platter Matter so that the height adjustment was as accurate as possible, though using a jig with some horizontal lines also works like a charm to ensure the arm is parallel. BTW tried it with and without the existing clamp - not much difference.
But lets not hijack the thread. Kevin
Hi NATDBERG,
Indeed, Tufnol it is - basically a phenolic resin layered with a material (cotton/paper etc.) The CJ 55 is 30+ years old now, but still in good nick.
Indeed, Tufnol it is - basically a phenolic resin layered with a material (cotton/paper etc.) The CJ 55 is 30+ years old now, but still in good nick.
Last edited: