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Ortofon SB-2 Stroboscope
This fine tuning kit comes with both a stroboscope disc and a stroboscope. It is an essential precision tool kit to precisely fine tune the speed of a turntable's rotation for listening to vinyl. SB-2 can be used with any turntable where you can adjust the speed, by moving an external motor or with a speed box that allows for fine tuning.
As speed is a critical factor in getting the best sound from your vinyl, this is an essential analogue accessory.
How to use the SB-2 Stroboscope:
Simply place the stroboscope disc on your turntable, turn on the motor and fine tune the speed whilst shining the stroboscopes light onto the stroboscope disc for an indication of when the speed is correct.
Three rings with line markings on the stroboscope disc are for fine tuning respectively 33 rpm, 45 rpm and 78 rpm. When the line marking is steady and does not move then the speed is correct.
* If the stroboscope disc is used together with a stroboscope flashing at 50Hz, then use the dotted markings as a reference.