Sound: a mixture of punch and controlled low-end spread, with a crisp and focused attack and a wide dynamic controlled low-end rumble and a focused attack characterize the EQ3 bass head. Two plies of 6.5mil film with an internal overtone control ring and a removable EQ muffle ring give the head versatility. With a wide dynamic range, the EQ3 produces punch and low-end spread that solidifies the downbeat.