I have currently changed from passive to active. I need to tune the equipment by pressing multiple buttons many times because my equipment is pretty old. Also, I tune it based on human ear (myself) instead of using frequency meter or any automatic feature provided by the HU. It is a bit hard for me to do this job well.
By pressing button by button in daily basis, I believe I have tuned it in an acceptable manner. However, I start to query whether I did the right thing after reading many post in this Forum. Would you please help me to clarify anything I did wrong?
Front: 2 tweeter + 2 mid range (Crossover Point from Passive setting: 2,500Hz)
Rear: 2 tweeter + 2 mid range (Crossover Point from Passive setting: 4,000Hz)
Sub: 2 JL 10"
Total: ten speaker components
Based on the previous passive crossover setting retrieved from the data sheet, I start to move the frequency from 2,500 up or down in daily basis until I find the sound acceptable one day. I end up have the following setting on my Active Crossover.
Active Crossover Setting:
At the beginning, I just want to match the figures with the passive crossover point. However, the Active Crossover contains four figures that I can adjust. Afterward, I figure it out this is a matter of the slope and lines cross with each other.
1. Currently, the crossover point between midrange and tweeter is 2,350Hz. Am I setting the slope too steep? Too steep can cause Frequency Continous Problem, am I right?
2. There is almost no slope between Mid-range and Subwoofer based on my current setting. Are they interfered with each other?
3. I do the setting based on my Front Stage because 1) it is relately important than rear 2) my equipment only allows me to adjust it based on frequency overall but not PER speaker component basis.
4. Delay Time: That's even confuse me very much! According to my understanding, it's used to correct the sound delivery to the listener. However, he or she is not sitting in the middle of the car. Therefore the time delay setting should be based on speaker position. In my equipment, it only allows me to adjust the delay time in frequency basis. I don't know why.
I am using Alpine PRA-H400 as the Active Crossover. Please help or any suggestions would be appreciated.