Bigman80
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Post by Bigman80 on Oct 25, 2021 20:53:37 GMT
The isolation shelf needs more thought, I would like to try one…. However I am tempted to get some Isopuck minis to go underneath the phono stage, and pre amp. I can’t see a minimum weight listed anywhere. Not sure they will make a massive difference, but I am impressed with what the Isopucks do under my speakers. Shelves do make a difference, but not everything is equal. I have a compact laminate shelf under my TT on silicone feet. It's been very useful at making the birch ply wall shelf none intrusive. I feel a panzer wall shelf would make it redundant though.
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Post by Deleted on Oct 25, 2021 21:00:42 GMT
I have a HiFi racks Podium wall shelf, in oak. That and boing feet make me wonder if it is worth the expenditure. Isoacoustics stuff seems to work, but I am not paying their HiFi product range prices…
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Post by antonio on Oct 25, 2021 22:52:25 GMT
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Post by Deleted on Oct 26, 2021 7:39:31 GMT
So as mentioned elsewhere, I fitted my SAE 1000LT to my turntable. It is the first time I am using the BB3 in “MM” mode, and have to say it sounds superb. I also think that the Houdini simplifies the set up, as I think it becomes less sensitive to VTA. Listening to Nirvana Unplugged, and it sounds fantastic. I don’t think it gives much away to the XX-2.
The main reason for the change? I am about to be invaded by family with children, so rather than risk disaster it is easier to use a cartridge that will be easier to see get broken. They all know not to touch the TT, but I was a kid once, and I can remember being fascinated by the TT my Dad had, and wondering how it worked. I had a good look at it, but never broke it, as I realised it was extremely fragile, and knew that my Dad would be rather annoyed if I did break it….
Normally I would fit an AT95, but I fancy having something a bit better for my holidays.
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Post by Deleted on Oct 26, 2021 10:05:24 GMT
I have just remembered that I have a big rubber wood butchers block that we don’t use very often. I may give this a try, as it is roughly the right size to sit the TT on.
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Post by antonio on Oct 26, 2021 10:33:21 GMT
Seems like I wasted my time with my previous post on this thread
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Post by Deleted on Oct 26, 2021 12:50:06 GMT
Seems like I wasted my time with my previous post on this thread Not at all. Not at home so not had a chance to look properly yet... Just have, and shipping to UK only. Since Brexit, I have stopped looking for 2nd hand gear on UK fora.
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Post by Deleted on Oct 26, 2021 17:10:34 GMT
What difference do isolation feet make under valve gear? I am tempted to get a pack of Isopuck Minis and use 4 for the pre and 4 for the phonostage. Worthwhile, or a waste of money.
I put the butchers block under the TT, and it is slightly too small, but at normal listening levels, I doubt very much it will make a difference. However, it has solid wood cylindrical feet on it, and to be honest, it looks a bit daft….
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Post by brucew268 on Oct 26, 2021 17:34:43 GMT
What difference do isolation feet make under valve gear? I am tempted to get a pack of Isopuck Minis and use 4 for the pre and 4 for the phonostage. Worthwhile, or a waste of money. I'd say worth a punt. Here one can try for 14 days and return in new condition if not happy. IsoAcoustics seems pretty well regarded in this arena.
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Post by Deleted on Oct 26, 2021 18:53:30 GMT
That is why I am thinking of getting the mini pucks. I have the pucks under my speakers. They do a good job on a suspended wooden floor. I also like the more realistic price tag…
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Post by Deleted on Oct 26, 2021 19:18:48 GMT
I’ll find out at the weekend if they are any good..
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Post by Deleted on Oct 27, 2021 6:10:23 GMT
I have been looking high and low for a bamboo chopping board, and the most suitable one is available in IKEA. It does look to have slightly sloping sides though. Does anybody use these?
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Bigman80
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Post by Bigman80 on Oct 27, 2021 6:46:12 GMT
I have been looking high and low for a bamboo chopping board, and the most suitable one is available in IKEA. It does look to have slightly sloping sides though. Does anybody use these? Massively popular in DIY circles.
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Post by Deleted on Oct 27, 2021 7:43:52 GMT
Yeah, I googled it about an hour ago. Absolutely loads of hits…. I am tempted to replace the glass shelves on my rack with an Aptitlig, as they are the exact same size. I am just not sure if it is just one edge which is slated, or all of them?
IKEA can deliver them cheaply, so will save me a trip across Toulouse.
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Post by stryder5 on Oct 27, 2021 8:14:50 GMT
I have been looking high and low for a bamboo chopping board, and the most suitable one is available in IKEA. It does look to have slightly sloping sides though. Does anybody use these? Yes, I’ve been using these for a while, compressed bamboo, very dead when tapped, effective anti vibration. Gary
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Post by Deleted on Oct 27, 2021 8:33:22 GMT
I have been looking high and low for a bamboo chopping board, and the most suitable one is available in IKEA. It does look to have slightly sloping sides though. Does anybody use these? Yes, I’ve been using these for a while, compressed bamboo, very dead when tapped, effective anti vibration. Gary Are all the edges tapered, or just a few?
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Post by stryder5 on Oct 27, 2021 9:15:57 GMT
Just the one long edge.
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Post by antonio on Oct 27, 2021 11:15:32 GMT
Roy Gregory in his review of the Aptitlig, replaced his rack shelves with them, gave them a big thumbs up. As you have already been told, loadsa users, in fact someone on YouTube uses two with ball bearings in between.
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Post by jazzcat on Oct 27, 2021 13:21:35 GMT
Roy Gregory in his review of the Aptitlig, replaced his rack shelves with them, gave them a big thumbs up. As you have already been told, loadsa users, in fact someone on YouTube uses two with ball bearings in between What an ugly finish but what a neat idea. Would love to se someone do some proper measurements with something like vibration monitoring sensor attached to the platform. A before and after measurement.
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Post by Deleted on Oct 27, 2021 14:18:03 GMT
Roy Gregory in his review of the Aptitlig, replaced his rack shelves with them, gave them a big thumbs up. As you have already been told, loadsa users, in fact someone on YouTube uses two with ball bearings in between What an ugly finish but what a neat idea. Would love to se someone do some proper measurements with something like vibration monitoring sensor attached to the platform. A before and after measurement. I'll have one in 💩 brown please....
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Post by Deleted on Oct 27, 2021 15:04:42 GMT
I am still in two minds about this. It takes quite a strong tap on my TT shelf to get any feedback through the speakers, so I don’t think adding a butchers block will make much difference. I am going to try a block under the BB3 to see if it does anything…
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Post by Deleted on Oct 27, 2021 15:13:33 GMT
Nope. No noticeable difference…
Maybe I just don’t play music loud enough?
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Post by antonio on Oct 27, 2021 15:26:41 GMT
What did you put between the butchers block and the shelf?
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Post by Deleted on Oct 27, 2021 16:15:29 GMT
Sound Damped Steel iso feet
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Bigman80
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Post by Bigman80 on Oct 27, 2021 17:18:40 GMT
Roy Gregory in his review of the Aptitlig, replaced his rack shelves with them, gave them a big thumbs up. As you have already been told, loadsa users, in fact someone on YouTube uses two with ball bearings in between. More Youtube bollocks You are NOT decoupling the shelves by putting cones or spikes on them. You are reducing the contact area, but they are still 100% coupled. Hence the bass issues one gets with spiking speakers into wooden floors with a cavity below. Same principle, less energy involved in shelves. To really decouple something, you have to create space between the two objects, where no part is touching the other. Those Ball bearings do not decouple. The ball bearings will allow some of the energy to transfer into kinetic energy (moving the shelves) but you are still coupled at the point of contactbetween the two bamboo boards. The vibration control is also greatly restricted in terms of axis, so if the force/vibration is something like tapping the board (downwards direction) you will not effectively control it, because it still has a path (ball bearings) to travel through. The more effective, and possibly the only way of doing anything truly effective, without spending mountains of cash on mag feet (still limited by direction) is something like a Silicone feet under the Aptilig, or spend the money and buy a Townsend shelf.
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Post by karma67 on Oct 27, 2021 17:32:47 GMT
Roy Gregory in his review of the Aptitlig, replaced his rack shelves with them, gave them a big thumbs up. As you have already been told, loadsa users, in fact someone on YouTube uses two with ball bearings in between. More Youtube bollocks You are NOT decoupling the shelves by putting cones or spikes on them. You are reducing the contact area, but they are still 100% coupled. Hence the bass issues one gets with spiking speakers into wooden floors with a cavity below. Same principle, less energy involved in shelves. To really decouple something, you have to create space between the two objects, where no part is touching the other. Those Ball bearings do not decouple. The ball bearings will allow some of the energy to transfer into kinetic energy (moving the shelves) but you are still coupled at the point of contactbetween the two bamboo boards. The vibration control is also greatly restricted in terms of axis, so if the force/vibration is something like tapping the board (downwards direction) you will not effectively control it, because it still has a path (ball bearings) to travel through. The more effective, and possibly the only way of doing anything truly effective, without spending mountains of cash on mag feet (still limited by direction) is something like a Silicone feet under the Aptilig, or spend the money and buy a Townsend shelf. agreed,or go the really cheap and effective route and use strips of newplast between 2 boards,newplast has almost the same damping properties as panzerholz.
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Post by Deleted on Oct 27, 2021 18:02:24 GMT
Sound Damped Steel iso feet And the shelf is or sorbothane hemispheres.
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Post by brucew268 on Oct 27, 2021 18:14:19 GMT
Roy Gregory in his review of the Aptitlig, replaced his rack shelves with them, gave them a big thumbs up. As you have already been told, loadsa users, in fact someone on YouTube uses two with ball bearings in between. More Youtube bollocks You are NOT decoupling the shelves by putting cones or spikes on them. You are reducing the contact area, but they are still 100% coupled. Hence the bass issues one gets with spiking speakers into wooden floors with a cavity below. Same principle, less energy involved in shelves. To really decouple something, you have to create space between the two objects, where no part is touching the other. Those Ball bearings do not decouple. The ball bearings will allow some of the energy to transfer into kinetic energy (moving the shelves) but you are still coupled at the point of contactbetween the two bamboo boards. The vibration control is also greatly restricted in terms of axis, so if the force/vibration is something like tapping the board (downwards direction) you will not effectively control it, because it still has a path (ball bearings) to travel through. The more effective, and possibly the only way of doing anything truly effective, without spending mountains of cash on mag feet (still limited by direction) is something like a Silicone feet under the Aptilig, or spend the money and buy a Townsend shelf. Agree. Spikes couple, they don't decouple. Ball bearings set up per that video mostly do the same thing. If the ball bearings had been laid in perfectly concave hard surfaces so that the top shelf floated left-right and back-forward, they would be coupling vertically and decoupling horizontally. In that case, they are very effective on horizontal decoupling and a seperate treatment is needed for vertical decoupling.
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Bigman80
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Post by Bigman80 on Oct 27, 2021 18:18:55 GMT
More Youtube bollocks You are NOT decoupling the shelves by putting cones or spikes on them. You are reducing the contact area, but they are still 100% coupled. Hence the bass issues one gets with spiking speakers into wooden floors with a cavity below. Same principle, less energy involved in shelves. To really decouple something, you have to create space between the two objects, where no part is touching the other. Those Ball bearings do not decouple. The ball bearings will allow some of the energy to transfer into kinetic energy (moving the shelves) but you are still coupled at the point of contactbetween the two bamboo boards. The vibration control is also greatly restricted in terms of axis, so if the force/vibration is something like tapping the board (downwards direction) you will not effectively control it, because it still has a path (ball bearings) to travel through. The more effective, and possibly the only way of doing anything truly effective, without spending mountains of cash on mag feet (still limited by direction) is something like a Silicone feet under the Aptilig, or spend the money and buy a Townsend shelf. Agree. Spikes couple, they don't decouple. Ball bearings set up per that video mostly do the same thing. If the ball bearings had been laid in perfectly concave hard surfaces so that the top shelf floated left-right and back-forward, they would be coupling vertically and decoupling horizontally. In that case, they are very effective on horizontal decoupling and a seperate treatment is needed for vertical decoupling. Absolutely spot on. That was something I was looking into but trying to get the right concave cut into a material that was smooth enough to be effective, became too hard to find. I gave up.
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Post by macca on Oct 27, 2021 18:20:26 GMT
Box full of sand with TT sat on a board that floats on the sand.
Or a board sat on an inflated bicycle inner tube, which is the principle of the Townsend IIRC
Mag Lev's for millionaires.
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