TB8 Drum Trigger Installation

---

The tb8 drum trigger was designed to be installed in either the up or the down position (next pic).  Performance will not be effected.

The tb8 drum trigger was designed to be installed in either the up or the down position.  Performance will not be effected.

Only one mounting screw is necessary for our drum conversion trigger because the natural curvature of the drum shell acts as a lock washer to prevent unwanted movement.  The tb8 has 4 universal side mounting holes .

• Mount the tb8 assembly near the vent hole.  
• Remove one or two lug screws and attach the tb8.
• Use a square for best alignment then tighten down.

• The cone trigger can be mounted anywhere within the tb8 bracket slot parameters.  It is your preference. 
• A stiff straight edge can be used to help locate the exact bearing edge. 
•  The cone should rest approx 1/32" above the bearing edge (slight pressure up against the bottom of the mesh head).  Use 2 wrenches to tighten the pedestal hardware. 

Important NOTE:

Too much pressure desensitizes response.  Too little pressure causes double triggering.

• Remove vent grommet.  Vent grommets are either pressed in or threaded.  
• Insert proprietary rear entry 1/4" jack.  Once jack is installed, tighten each nut firmly.  
• Now install your preferred mesh head.

Pic shows a dual tb8 electronic drum trigger using 2 separate TS jacks.  This configuration requires drilling one more hole.

Bass drum tb8 trigger should be placed 5" away from beater impact position.  This is due to heavy beater impact demand.  Only one trigger is needed for double bass.

Shown here is the actual trigger cone position relative to beaters.