The Mad Hatter Solderless Single Volume Single Tone System with 5-Way Selector Switch for Dual Humbucker (SVST-4/25) is specially designed for instruments with two humbucker pickups utilizing a single volume control and a single tone control.  The 4/25 has replaced the discontinued IBZM System.  

When the 4/25 P/P Tone Pot is engaged it not only splits the humbuckers, but it also changes the value of the volume pot from 500k to 250k.  

In standard mode (500K) the switch positions will be as follows:  

Position 1 - Bridge Pickup Full Humbucker
Position 2 - Bridge & Neck Pickup Single Coils Towards Bridge (hum-cancelling)
Position 3 - Bridge & Neck Pickups Full Humbucker
Position 4 - Bridge & Neck Pickup Single Coils Towards Neck (hum-cancelling)
Position 5 - Neck Pickup Full Humbucker

In Transformed Mode (250K) with the 4/25 P/P Pot engaged the switch positions will be as follows:

Position 1 - Bridge Pickup Split
Position 2 - Bridge & Neck Pickup Single Coils Towards Bridge (hum-cancelling)
Position 3 - Bridge & Neck Pickups Split Inner Coils
Position 4 - Bridge & Neck Pickup Single Coils Towards Neck (hum-cancelling)
Position 5 - Neck Pickup Split  

System includes:

• One Terminator "Goes 2/11 Volume" Pot
• One Terminator 4/25 P/P Tone Pot
• Mad Hatter Switchcraft Output Jack 
• Terminator OakGrigsby 5-Way Selector Super Switch
• Two Polypropylene Tone Capacitors, a .022uF and a .047uF to help find just the right tone.  
• Wiring Diagram 

Click here for the SVST-4/25 Wiring Diagram

System has the option of a standard Switchcraft Output Jack or the longer Switchcraft Barrel Output Jack typically found on many Ibanez instruments. Select the option that best fits for needs from the drop down menu.

***This system requires 1.5" of clearance within in the control cavity for the switch.  May not fit in some guitars.*** 

California Prop 65 Warning:  This product contains a chemical(s) know to the state of California to cause cancer or birth defects or other reproductive harm.

Installation Video: