EMG ALX Pickup Set EMG HZ passive humbucker includes ABQ EQ/Boost with push/pull control with 3-band EQ Preamp output can be adjusted to add or subtract gain available in Floyd Rose and standard Tune-o-matic version The EMG-ALX Alexi Laiho signature model with ABQ EQ/Boost is an EMG HZ passive model that includes the ABQ EQ/Boost It features a push (to activate) / pull (to deactivate) control