The following modifications have been included.

A) Removal of rear sealed chamber and installed screen for protection.
B) Addition of spacer to better load the driver.
C) Removal of bug screen on the drivers throat.

This is for two LDA1001 drivers.

These modifications change the sound qualities of the driver. Therefore the specifications of the original driver can no longer apply to this driver, in effect it is an entirely new compression driver, although altered from the Eminence ASD1001 This is a 1″ driver with a 1 3/8″ screw in throat. Essentially its fs is now much lower, so it will cover a broader frequency band if needed, but we recommend its use over 3k as this is where it sound best.