Is there any way to find out what frequency the tweeter is crossed at on my ID ctx65's since it doesn't say from the manufacturer? I emailed ID but go no response. Is there a general frequency that coaxials are crossed at? maybe 4khz or somthing? I want to know so I can more accurately eq the drop off at the crossover point since the woofer is off axis and the tweeter is on axis (tweeter can tilt)