VPI TNT 3 (1992)
The VPI TNT-3 comes with a 1" thick armboard large enough to accomodate liner tracking arms. The three-pulley system is used to isolate the motor and it's noise from the platter while driving it through three pulleys for a consistant rim driver effect.
A 21 lb. stainless steel motor assembly rotate the massive, laminated platter smoothly and with astonishingly low noise. The motor assembly is grounded from motor to power supply to AC power source for even quieter operation. A voltage reduction circuit reduces power to the motor once the platter is up to speed, minimizing the transmission of motor vibration to the platter. The materials comprising the platter (aluminum and lead-filled acrylic) have been carefully matched to damp unwanted vibrations in the vinyl disc. A properly-designed reflex clamping system provides vacuum-like hold down without the hassles and noise of pumps. VPI's Synchronous Drive System (included) provides accurate speed control (for both 33 1/3 and 45 RPM operation, 78 RPM available at additional cost) and power line filtration in a single package. All of this results in rumble, wow and flutter specifications below the limits of current measuring equipment.
The entire table floats on a four point damped spring suspension system.