You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.
It's a speaker with built-in tunable HIGH CUT and LOW CUT audio filters. The graph just shows the approximate bandwidth results when the two tuning controls are at certain positions.
This forum does not allow a single user to have more than one username. If anyone wants to change their username contact an admin and it will be done. Multiple accounts belonging to the same member will be deleted without warning.