The 120 mm stabilizer is larger than the 70 mm stabilizer used with the standard models of the CD5 and TL5. The greater inertia of the 120 mm stabilizer provides a more stable disk rotation speed which enhances the performance of the CD5 and the TL5. This is only available through Audio Union.
The 70 mm diameter stabilizer has a mass of 330 grams while the 120 mm diameter stabilizer has a mass of 380 grams. The 120 mm stabilizer is same stabilizer used in the TL2N