Astrosound Posted December 25, 2013 Share Posted December 25, 2013 = Well I just Saved as and rotated 90deg Counter clockwise in PShop-- Mac here too--I'm not too familiar with other Manip' programs-but your file onIy needs the CCW route. Surprised your camera does not shoot/save file as you view-- I cannot see any meta data to name your source. Maybe experiment a tad more with your camera. Willco It was iPhone :-) Link to comment Share on other sites More sharing options...
MrRogers Posted March 19, 2015 Share Posted March 19, 2015 Given that this thread is about "isolation platforms", I'm wondering how marble-sitting-on-pumice-stone provides isolation? Regards, Andy Did you ever find iout? Link to comment Share on other sites More sharing options...
andyr Posted March 19, 2015 Share Posted March 19, 2015 Did you ever find iout? No, the guy that posted that was supposed to report back. Andy Link to comment Share on other sites More sharing options...
Newman Posted March 19, 2015 Share Posted March 19, 2015 It was just a tongue-in-cheek way of saying that it doesn't provide isolation. Rightly so IMHO. Link to comment Share on other sites More sharing options...
MrRogers Posted March 20, 2015 Share Posted March 20, 2015 Has anyone tried a bamboo block sittong on top of slate or granite? Link to comment Share on other sites More sharing options...
sjjb613 Posted March 24, 2015 Share Posted March 24, 2015 I think just get your T/T off the floor. I make these. rated at 15kg. No flex or vibration. perfectly stable. Scmick! 3 1 Link to comment Share on other sites More sharing options...
andyr Posted March 24, 2015 Share Posted March 24, 2015 (edited) I think just get your T/T off the floor. I make these. rated at 15kg. No flex or vibration. perfectly stable. Scmick!post-151454-0-23671500-1427181857.jpg Sensational idea! Real "out-of-the-box" thinking! Andy Edited March 24, 2015 by andyr Link to comment Share on other sites More sharing options...
stevoz Posted March 3, 2017 Share Posted March 3, 2017 (edited) Old thread, new post.....made an isolation platform yesterday for about $20!Here's some pic's: It's made from structural plywood. I'd have preferred 25mm thick (or thicker), but settled on 17mm thick due to a cheap offcut at the timber yard. It sits on five semi-sphere sorbothane 'legs'. Can't really tell if it's made any difference to the SQ but it appears to have quietened the noise floor.....It was fun to do anyway. Edited March 3, 2017 by stevoz 3 Link to comment Share on other sites More sharing options...
michaelw Posted March 3, 2017 Share Posted March 3, 2017 (edited) ^^^ similar to what i have under my sp10. 20mm recycled timber slab, nz rimu on 3 black diamond cones Edited March 3, 2017 by michaelw 1 Link to comment Share on other sites More sharing options...
tubularbells Posted March 3, 2017 Share Posted March 3, 2017 I have mounted a wall shelf approx 1cm above the top shelf of my rack so it appears to float. Turntable is then sitting on a butchers block with 3 sorbothane feet underneath while turntable plinth is coupled to this via 3 Vibrapods. 3 Link to comment Share on other sites More sharing options...
BuzzzFuzzz Posted September 10, 2019 Share Posted September 10, 2019 (edited) G'day folks. A very old thread brought back to life once again as I've started researching a DIY Isolation Platform for my new turntable. I've read the first 10 pages and have skipped to the last few to see how recent the posts were. Great to see some pics from @stevoz & @Tubularbells set ups. I was hoping that some of you could update what you have found/done over the years since this topic began. Maybe posting some new pics and details of what works for you. I'm a bit of a technical simpleton, equations have never been my forte, and could use some basic help about what we are trying to do... i.e. Isolation - Damping - Resonance of different materials etc. From what I can gather we are trying to 'minimise' the vibration transfer between objects/materials, by minimising the area of contact, or using the resonance characteristics of the materials. But I am also wondering about the vibrating air of the sound itself? I guess that the dust cover reduces some of this. One post mentioned removing some of the resonance in a platform by reducing the size or shape, but what about cutting a large hole in the middle of a square platform? Or, would a round platform create less or more resonance than a square? I'm considering using a sand tray sitting on a soft foam or material sheet, sitting on a solid platform which will have some cushioning feet or maybe using an inner tube. I'm reluctant to use springs due to the maths involved. I'm a novice when it comes to the issues of sound and resonance, so any help, advice or links to recommended reading would be very much appreciated. Regards. Ant. P.S. Back to page 11 for continued reading. Edit - I'm also thinking of similar platforms for my speakers, for vibration as well as raising them. Edited September 10, 2019 by BuzzzFuzzz Link to comment Share on other sites More sharing options...
Guest Posted September 10, 2019 Share Posted September 10, 2019 On 03/03/2017 at 4:26 PM, Tubularbells said: I have mounted a wall shelf approx 1cm above the top shelf of my rack so it appears to float. Turntable is then sitting on a butchers block with 3 sorbothane feet underneath while turntable plinth is coupled to this via 3 Vibrapods. How did you get your tonearm to change sides like that? 1 Link to comment Share on other sites More sharing options...
Guest Misterioso Posted September 10, 2019 Share Posted September 10, 2019 (edited) I am also interested in this topic. Some new isolation platforms are showing up on the market: 1) Wyndham Audio (https://www.wyndhamaudio.com.au/products/natural-timber-audio-component-isolation-platforms) @scuzzii seemed to be very impressed by this product. 2) Isoacoustics Delos (https://www.stereo.net.au/news/isoacoustics-delos-isolation-platform-coming-soon) Supposed to be here in August. Did not happen as far as I can see. Local distributor does not respond to email about expected arrival date and pricing. Edited September 10, 2019 by Misterioso Link to comment Share on other sites More sharing options...
Frank Prowse Hi-Fi Posted September 10, 2019 Share Posted September 10, 2019 Been using these to good effect:- Ungnoi TaiChi Base (x4) 1 Link to comment Share on other sites More sharing options...
Rockford Posted September 10, 2019 Share Posted September 10, 2019 I went the Ebay and Off-cut route. 8 Aluminium 'Isolation Feet' from Ebay for about $50. Two kitchen stone benchtop offcuts cut to size for $50. About 30Kg of weight in them. 5 Link to comment Share on other sites More sharing options...
BuzzzFuzzz Posted September 10, 2019 Share Posted September 10, 2019 (edited) I've been surfing for different feet options. Looking at the round feet pictured above by @Rockford, and also spiked feet. As part of the process of reducing contact between objects/materials, I'm leaning towards spiked feet. My questions are - Do they reduce vibration by making less contact, or do they focus the same vibration into the point? What other feet options are around? What are the principles/characteristics of feet I should be looking for? There are so many different ones available, a little guidance in narrowing my search would be much appreciated. Cheers. Ant. Edited September 10, 2019 by BuzzzFuzzz Link to comment Share on other sites More sharing options...
Rockford Posted September 10, 2019 Share Posted September 10, 2019 If you want wade through this thread there are some good points.https://forum.audiogon.com/discussions/has-anyone-had-experiences-good-or-bad-with-speaker-isolation-or-isolat Link to comment Share on other sites More sharing options...
Rockford Posted September 10, 2019 Share Posted September 10, 2019 A good demonstration, albeit about speakers. Link to comment Share on other sites More sharing options...
andyr Posted September 10, 2019 Share Posted September 10, 2019 1 hour ago, BuzzzFuzzz said: .. and also spiked feet. As part of the process of reducing contact between objects/materials, I'm leaning towards spiked feet. My questions are - Do they reduce vibration by making less contact, or do they focus the same vibration into the point? Mmmm - you must've missed a few lessons in maths at school, BF! Spikes do not reduce vibration by making less contact - they couple the 'thing' which is on top of them ... to the surface which is beneath them. So: if a component's case is vibrating - perhaps from a power transformer - these vibrations will be funneled away from the case and into the surface which the spikes are resting on. Which, yes, can reduce the vibration in the component's case. but if the surface which the spikes are resting on, is vibrating ... the spikes provide a pathway to channel these vibrations up into the component's case. In terms of coupling - just do the maths! Say the component's case has 4 feet - and each foot has a surface area of 2.5 sq cms. That's 10 sq cms in total. Component weighs 10 kg - so the feet are pressing down on the benchtop/shelf with a force of 1kg per sq cm. Now put 4 spikes under the component; each spike has a point with an area of 1 sq mm (that's a pretty blunt 'spike', btw! ). Now the 10kg weight of the component is being supported on an area of 4sq mm - that's a force of 250kg per sq cm! (10kg / 4 sq mm) IOW, the component is now pressing down on the benchtop/shelf with a weight 250 times that of the feet! Which will couple it to the benchtop/shelf! Andy 1 Link to comment Share on other sites More sharing options...
Neilsan Posted September 11, 2019 Share Posted September 11, 2019 (edited) Been using large Isonode feet under my 401 and SP10/2. No more problems with footsteps near the cabinet now.(Old house) Definitely tightened up the bass under the 401. https://www.needledoctor.com/Bright-star-isonode-extra-large And using these under my speakers. A lot cleaner bass. https://herbiesaudiolab.com/collections/loudspeaker-rack-decoupling-and-isolation/products/cone-spike-decoupling-glider Edited September 11, 2019 by Neilsan Link to comment Share on other sites More sharing options...
blybo Posted September 11, 2019 Share Posted September 11, 2019 17 hours ago, Rockford said: I went the Ebay and Off-cut route. 8 Aluminium 'Isolation Feet' from Ebay for about $50. Two kitchen stone benchtop offcuts cut to size for $50. About 30Kg of weight in them. I have the same TT. Do you mind telling me which record clamp that is and where purchased? The plastic 1 that comes with the TT is totally at odds with the finish of the table. I have mine on an Ikea bamboo chopping block with 5 small squares of sorbothane supporting the chopping block. My Entertainment unit's top is also concrete, but it can't be solid concrete as it's not that heavy Link to comment Share on other sites More sharing options...
Martykt Posted September 11, 2019 Share Posted September 11, 2019 (edited) On 10/09/2019 at 10:33 AM, Grizzly said: How did you get your tonearm to change sides like that? That's his left turntable..... It was designed so that @Tubularbellscan play records in the church backwards..... Edited September 11, 2019 by Martykt 1 Link to comment Share on other sites More sharing options...
Rockford Posted September 11, 2019 Share Posted September 11, 2019 29 minutes ago, blybo said: I have the same TT. Do you mind telling me which record clamp that is and where purchased? The plastic 1 that comes with the TT is totally at odds with the finish of the table. I have mine on an Ikea bamboo chopping block with 5 small squares of sorbothane supporting the chopping block. My Entertainment unit's top is also concrete, but it can't be solid concrete as it's not that heavy Yep, it is this one, no idea if it is a legit Viborg. Not too heavy, as I think the belt is at it's limit without slipping happening. https://www.ebay.com.au/itm/Viborg-LP-Turntable-Stabilizer-Vibration-Balance-Clamp-Weight-280g-50Hz-60Hz-1PC/222763092558 1 Link to comment Share on other sites More sharing options...
BuzzzFuzzz Posted September 11, 2019 Share Posted September 11, 2019 G'day @andyr - Thanks for your post mate, it actually made a lot of sense for me. Indeed, maths was my most frustrating subject at school. As mentioned in my earlier post, when it comes to equations I tend to shut down, but I understand the way you explained it. This is the first time I have considered isolating any of my equipment, it's all very new for me, and I wasn't really sure what coupling meant. I have recently bought my first new TT, which has prompted my enquiries here. I don't know a lot about the characteristics of sound and resonance, but my research has begun. I've read through this whole thread, some of it made sense and some of it didn't. I will re-read through and dig a little deeper into the points I don't understand. I'm interested in the different resonance qualities of different materials, such as glass, wood, stone, and also the different characteristics of different types of wood and stone, and how they affect sound and each component, and how they sound with my equipment. I actually picked up a cheap piece of sandstone today, and will pick up a few different types of wood next Monday. Thanks again. Ant. Link to comment Share on other sites More sharing options...
wen Posted September 11, 2019 Share Posted September 11, 2019 @BuzzzFuzzz, any change to the siting of your Turntable can change the sound, as you have found many things have been tried and claims made, i started with plywood tables with drawer knobs, then various skeletal frames, wood, aluminium 1 inch square sand filled, then steel 1 inch squared sand filled with screws for levelling, on my current Turntable Rega Planar 2 (1976 model) i have removed the original feet and screwed a piece of slate which has a layer of silicon between it and the Turntable and used squash balls as feet, i enjoy the sound of the current setup, had a Linn Sondek prior, not missing it, this setup might be better but unless you do a side by side test? 1 Link to comment Share on other sites More sharing options...
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