Yamamoto Sound CraftBT-2 Brass bolt set for cartridge mounting

Commonly used aluminum screws have low strength and seem to have many disadvantages in terms of sound quality. BT-2 is a set of brass bolts and nuts that can be used in such cases. There are 7 types of bolts, 2 of each of lengths, and 10 nuts of 4 mm on the opposite side. Use these longer screws to make separate releasesWA-1It is also possible to adjust the weight including the headshell and cartridge. For fine tuning, you can adjust the number of nuts and the length of the bolts to unify the weight of the headshell and make it easier to use. If the total weight of the cartridge and headshell is unified, there is no need to adjust the needle pressure when changing the car ridge, making it easier to change the cartridge. The nut that comes with the BT-2 has a small side of 4 mm, so it can be used comfortably for the groove part of the cartridge body. The weight of each member is listed below, so please refer to it for weight adjustment.