Hi Eric,
Sounds like you are off to a good start. My experience agrees with that of your friend re: the sandbox vs the air platform. If your TNT has springs vs air bladders/handballs, the air bladder under the sandbox can be of additional benefit. Your ears will tell.
Current thinking (at least my understanding of it) is that soft interfaces do indeed dissipate external vibration coming from beneath, but trap internal resonances within the component on top (wrong-way isolation vs transmission). Check out the Symposium website for further (better) explanation. I recently installed metal footers (SR MiG 2.0s) between my SACD player and Symposium Svelte metal-foam-metal sandwich-type platforms and recognize the sonic benefits of reducing internal resonance there.
It never occurred to me to consider the sand type. I used play sand that I let dry for a long while. I did place some industrial heatsinks hidden within the sand to dissuade the sand from packing and to provide additional mass. All sorts of creative ideas can come into play here.
On the floss drive, the drugstore variety of unwaxed dental floss is fine. Use the belts you have to determine the length needed. Tie it off with your best knot (check the web for suggested knots if you are so inclined) ensuring that the knot will not slip under pressure/tension. Dental floss is surprisingly strong so no worries about breaking it. Place the floss around the center platter groove. It helps to have a patient someone assist. Now, while holding the floss under slight tension, work it around the flywheel pulley while moving the flywheel outwardly to apply moderate tension as you let go. Do the same between flywheel pulley and motor pulley.Turn ’er on and see what you think.
You could even use two runs of floss positioned as your belts are now for better distribution of the load on your platter/flywheel/motor bearings, but I wouldn’t suggest trying that on your first attempt. Explicatives are probable.
In my case, the sound is much faster and my TNT lost a great deal (the right amount) of its tendency to sound fat and slow.
Cheap and not time consuming, so if you don’t prefer it little is lost, assuming no unfortunate incidents with your arm/stylus.
Best to you Eric,
Dave
Sounds like you are off to a good start. My experience agrees with that of your friend re: the sandbox vs the air platform. If your TNT has springs vs air bladders/handballs, the air bladder under the sandbox can be of additional benefit. Your ears will tell.
Current thinking (at least my understanding of it) is that soft interfaces do indeed dissipate external vibration coming from beneath, but trap internal resonances within the component on top (wrong-way isolation vs transmission). Check out the Symposium website for further (better) explanation. I recently installed metal footers (SR MiG 2.0s) between my SACD player and Symposium Svelte metal-foam-metal sandwich-type platforms and recognize the sonic benefits of reducing internal resonance there.
It never occurred to me to consider the sand type. I used play sand that I let dry for a long while. I did place some industrial heatsinks hidden within the sand to dissuade the sand from packing and to provide additional mass. All sorts of creative ideas can come into play here.
On the floss drive, the drugstore variety of unwaxed dental floss is fine. Use the belts you have to determine the length needed. Tie it off with your best knot (check the web for suggested knots if you are so inclined) ensuring that the knot will not slip under pressure/tension. Dental floss is surprisingly strong so no worries about breaking it. Place the floss around the center platter groove. It helps to have a patient someone assist. Now, while holding the floss under slight tension, work it around the flywheel pulley while moving the flywheel outwardly to apply moderate tension as you let go. Do the same between flywheel pulley and motor pulley.Turn ’er on and see what you think.
You could even use two runs of floss positioned as your belts are now for better distribution of the load on your platter/flywheel/motor bearings, but I wouldn’t suggest trying that on your first attempt. Explicatives are probable.
In my case, the sound is much faster and my TNT lost a great deal (the right amount) of its tendency to sound fat and slow.
Cheap and not time consuming, so if you don’t prefer it little is lost, assuming no unfortunate incidents with your arm/stylus.
Best to you Eric,
Dave