Works with Rega models RB250, RB300, RB600, RB700, RB900 and RB1000.
Tolerances are -.001 / + Nothing. REGA Lovers can dial your tracking force with just a 1/4, 1/2, 3/4, or a full turn. You can HEAR .010 to .030 of a gram tracking force difference. One full turn is .030 of a Gram. The beauty of this stub is you don't need to reweigh the tracking force when moving the fine adjustment.
Cartridge Weight works like this:
Cartridges 6 to 10g: End Weight needs to be 120
Cartridges 10 to 14g: End Weight needs to be 140
Cartridges 14+: End Weight needs to be 160 End Stub
Take your old end stub off.
Screw the BRASS End Stub on.
Now screw on the first custom made nut.
Put the Teflon washer on and then the locking nut.
Set the adjustment all the way forward.
Very gently lock the 2 nuts.
The nuts should move together and be snug NOT TIGHT.
Look at your cartridge instructions and see what the tracking force is. (Example: 1.7 to 1.5)
Now set the main Heavy Weight to 1.6 with the fine adjustment all the way screwed in very ightly.
Now Listen to some vinyl by moving it 1.590 / 1.580 / 1.570 / 1.560 and so on.
Expressimoaudio gives YOU the power to dial your tracking force in truly like a high end Tonearm.
1. Lock down the arm.
2. Holding the arm tube only, unscrew the stock end stub.
3. Holding the arm tube only, screw in the new end stub. It's that simple and easy!