Works on both 50 Hz and 60 Hz Powered Turntables!
The Stroboscopic Test Record has two sides, one for the standard 50Hz or 60hz test light (ambient house lighting) and one for the Clearaudio Stroboscopic Speed Test Record Strobe Disc Speed Light. You can check the speed of the turntable with the stylus engaged or not engaged, so as to check for drag and assure correct speed while your LPs are playing. It features locked grooves so you can actually use this as a cartridge break in tool!
Setting the correct speed for your platter is one very important part of correct analogue set-up. Clearaudios real-time speed control strobe test record enables analogue fans to ensure that the turntable speeds is correct. The outer rings well check 33.3rpm the inner 45rpm. Place this full size 12- record on your deck, and set your turntable in motion, if the lines on the disc do not go forward or back you will have no adjustments to make. Because of its size this disc is far easier to use than other systems. Ideally this disc should be used with Clearaudios calibrated 300Hz quartz light source. The Clearaudio Stroboscopic Speed Test Record also features inner grooves for cartridge burn in.
Clearaudio Stroboscopic Speed Test Record Strobe Disc
Clearaudio Stroboscopic Speed Test Record Strobe Disc Speed Light
Read the instruction manual!