Looks like vertical and two horizontal directions in the graphs. Very interesting. Especially with TT on and no isolation. Are there similar graphs for the 3 rotational directions? Thanks in advance.
Has anyone had experiences good or bad with speaker isolation or isolation in general ?
hi
i have been enjoying buying and listening to hifi for some 35 years now and have seen many items come and go.I have also been interested in the audio cable discussions and i agree that cables do make a difference how much of a difference is a very individual, and a system dependent situation. There has been nothing that has got me so excited and improved the sound of my system that has ever made me want to really share it with fellow audiophiles until i started to try various isolation products.With so much choice from affordable to very expensive i found the hole subject very confusing and i did not know where to start. After trying lots of various products all shapes and sizes with very different results i decided to read reviews which is something i do not usually do to get some advise.I read a review on the Townshend audio seismic podiums they are isolation platforms that go under your speakers .This company is very famous for isolation ideas and have been around some 50 years based here in the UK they also had a factory in the USA back in the 1980s. I contacted Nick at Emporium hifi and he agreed to install a pair for me so i could have a listen. My speakers are sound-lab dynastats which i use in quite a small room but with the adjustments give a nice sound. After installing the podiums we both sat down with jaws hitting the floor these podium things completely transformed the sound of my system to absolute perfection. After all this time trying various products under my equipment i have now isolated my speakers and the sound quality is exactly what i believe we all are chasing, my sound-labs are now transparent no more bass problems i have just got one big 3D sound stage the dynastats are now very open with deeper much better bass everything is perfect. I now believe isolating your loudspeakers is the first port of call i was so impressed by the Townshend audio seismic products i now sell them as i have never come across anything that has given my system such a great upgrade , the sound is the same as before but now its just so much better its playing deeper bass but tighter much more resolution and no boom , the midrange is so much more human sounding realistic and spacious with the top end so refined and perfect , is anyone using podiums and had the same experiences i would love to hear from you thank you john
i have been enjoying buying and listening to hifi for some 35 years now and have seen many items come and go.I have also been interested in the audio cable discussions and i agree that cables do make a difference how much of a difference is a very individual, and a system dependent situation. There has been nothing that has got me so excited and improved the sound of my system that has ever made me want to really share it with fellow audiophiles until i started to try various isolation products.With so much choice from affordable to very expensive i found the hole subject very confusing and i did not know where to start. After trying lots of various products all shapes and sizes with very different results i decided to read reviews which is something i do not usually do to get some advise.I read a review on the Townshend audio seismic podiums they are isolation platforms that go under your speakers .This company is very famous for isolation ideas and have been around some 50 years based here in the UK they also had a factory in the USA back in the 1980s. I contacted Nick at Emporium hifi and he agreed to install a pair for me so i could have a listen. My speakers are sound-lab dynastats which i use in quite a small room but with the adjustments give a nice sound. After installing the podiums we both sat down with jaws hitting the floor these podium things completely transformed the sound of my system to absolute perfection. After all this time trying various products under my equipment i have now isolated my speakers and the sound quality is exactly what i believe we all are chasing, my sound-labs are now transparent no more bass problems i have just got one big 3D sound stage the dynastats are now very open with deeper much better bass everything is perfect. I now believe isolating your loudspeakers is the first port of call i was so impressed by the Townshend audio seismic products i now sell them as i have never come across anything that has given my system such a great upgrade , the sound is the same as before but now its just so much better its playing deeper bass but tighter much more resolution and no boom , the midrange is so much more human sounding realistic and spacious with the top end so refined and perfect , is anyone using podiums and had the same experiences i would love to hear from you thank you john
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The system actually works via 8 accelerometers (4 horizontal and 4 vertical). Data from all is accessible if you have an oscilloscope handy. The rotational forces being addressed through the combination of accelerometers I presume so if anyone in the Portland area wants to bring their scope round ... more details here http://www.herzan.com/wp-content/uploads/2015/12/Manual-TS-150_-TS-140_-TS-300LP.pdf |
Hmmmm...why so many accelerometers? And why only H and V accelerometers? I think it’s so they can use the differences between two or more vertical accelerometers placed in different locations across the platform - for example, to determine velocities due to type 1 bending forces ("Roll"). The center of the top plate would remain relatively stationary for that rotational direction. Ditto for the horizontal accelerometers and the other 2 rotational directions, "Rock" and "Twist." Come on baaby, let’s dooo the twist!🎷 |
@geoffkait the detailed explanation of why 8 accelerometers is in this paper http://www.herzan.com/wp-content/uploads/2015/12/White-Paper-A-dynamic-antivibration-system.pdf |
Weber’s bar was a very large aluminum bar with a large number of piezoelectric detectors attached to the bar allow for six degrees of isolation as well as the ability to determine the direction from whence the gravity waves emanated. Interesting that a gravity wave the amplitude of which is only the diameter of an atomic nucleus was thought by Weber to be able to bend an aluminum bar 6 feet by 3 feet in dimension, no? If there had been more advanced isolation techniques in the 60s his bar would've probably worked. Wiki A Weber bar is a device used in the detection of gravitational waves first devised and constructed by physicist Joseph Weber at the University of Maryland. The device consisted of multiple aluminium cylinders, 2 meters in length and 1 meter in diameter, antennae for detecting gravitational waves.[1] Around 1968, Weber collected what he concluded to be "good evidence"[1] of the theorized phenomenon. However, his experiments were duplicated many times, always with a null result. Such experiments conducted by Joseph Weber were very controversial, and his positive results with the apparatus, in particular his claim to have detected gravitational waves from SN1987A in 1987, were widely discredited. Criticisms of the study have focused on Weber’s data analysis and his incomplete definitions of what strength vibration would signify a passing gravitational wave. Weber’s first "Gravitational Wave Antenna" was on display in the Smithsonian Institution as part of "Einstein: a Centenary Exhibit" from March 1979 to March 1980.[2] A second is on display at the LIGO Hanford Observatory.[3] cheerios |
- 250 posts total